RC India
Welcome Guest, please login or register.
 
Pages: 1 2 3 [All]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: February 16, 2010, 03:42:01 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC




Guys !!
Guess what. The postman knocked at my door today with a small parcel. I did not even think it would be the heli i ordered 5 days back !
What a nice surprise !! What surprises me was that HK guys have got this packed in such a small box !
Everything looks intact, however havent opened everything yet.
Will be posting pictures soon.
Unfortunately i do not have the servos yet ( gyro i have ) , so the flying this might wait for a month or so, till i get the servos.
But i am eager to build this soon .
Thanks everyone for best wishes.
-Gaurav
« Last Edit: March 23, 2010, 01:11:18 AM by anwar » Logged

 

Read
« Reply #1 on: February 16, 2010, 03:44:19 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Wait! we havent wished yet Wink  Grin
Logged
 

Read
« Reply #2 on: February 16, 2010, 04:26:36 PM »
ujjwaana
Plane Lover
Forum Hero

*****

Reputation Power: 28 
ujjwaana barely matters.ujjwaana barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 2384
Join Date: Oct, 2009



So that makes 3 of us with un-assembled HK-450 V2 Helis in their closets! Hope it would be a great learning experience. Vinay has already put his thread for his Heli build. Hope its good source of text for both of us.
Logged

Futaba 8FG Super | HK-450v2 | FA-22 Raptor |AXN Floater-Jet | FunJet | Black Horse Edge 540 | Amp Master 015 | 2.3M Big Brother
 

Read
« Reply #3 on: February 16, 2010, 05:09:38 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



My HK-450 Pro (Torque Tube edition) has been shipped, should have it soon.  After the first crash that takes the torque tube out, it will become a regular belted one Wink
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #4 on: February 16, 2010, 05:32:46 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



gaurav has ordered a GT not V2
Logged
 

Read
« Reply #5 on: February 16, 2010, 05:46:21 PM »
ujjwaana
Plane Lover
Forum Hero

*****

Reputation Power: 28 
ujjwaana barely matters.ujjwaana barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 2384
Join Date: Oct, 2009



Opps! My Bad. But ain't the build process same ? just I would be at learning on a cheaper Heli  Cheesy
Logged

Futaba 8FG Super | HK-450v2 | FA-22 Raptor |AXN Floater-Jet | FunJet | Black Horse Edge 540 | Amp Master 015 | 2.3M Big Brother
 

Read
« Reply #6 on: February 16, 2010, 05:52:45 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Yes mine is a GT. I guess for us beginners, it doesnt really matter which one we choose. We all gonna crash and buy spares !!!
In fact spares of GT are not yet on site, so I cannot order them now. In this sense the V2 or MT is better, but then GT parts should be available soon.
Logged

 

Read
« Reply #7 on: February 16, 2010, 06:45:43 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



even the V2 parts are not out. But no major difference there, But I have a question.

Anwar: diff b/w v1 and v2 apart from the 4mm feathering shaft in v2 and 3mm in v1?
Logged
 

Read
« Reply #8 on: February 16, 2010, 08:11:20 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



I started with a V1. I believe a good friend is still flying it somewhere in Bangalore Wink

If you are talking about the differences between the Align original ones, there were many. A new feathering shaft supporting thrust bearings, new main and tail gears (high strength, and if I remember correctly, even the number of teeth were different), lots of metal upgrades in the head and tail and an upgraded swash plate and main shaft. They also upgraded to a better ESC and motors (3500kv to 3700KV).

You are right in that only the feather shaft is the one that will give you real trouble when you try to substitute parts.
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #9 on: February 16, 2010, 08:16:55 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



Here is a trick if you run out of the rubber dampers (like O-rings) on the feather shaft inside the head. Get some glow fuel line/pipe, and cut like 1 to 1.5mm sections out and use them instead.  They will not last as long, but can certainly help you wait while replacement parts are on the way Wink
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #10 on: February 16, 2010, 09:37:28 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Ya sure will keep that in mind. Once the spares arrive, I think myself and ujjwal will merge orders and get a single pack to save on shipping. Wink
Logged
 

Read
« Reply #11 on: February 16, 2010, 09:51:56 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



I end up ordering stuff for multiple folks here, and the "Wishlist" feature on some online stores is a real help.  My fellow flyers make a wishlist, and share the link with me, and I can easily include them in my own order.
« Last Edit: February 16, 2010, 10:59:24 PM by anwar » Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #12 on: February 16, 2010, 10:02:33 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Thats what we do here too. Amir, me and other aermodellors share our requirements and then we sort together on what we need urgently (via EMS) and not so urgently( via air parcel ) and we club and order.Saves shipping, and this ways we get a consignment at regular intervals.

Nice discussion this is. Reminds me how some people at the other forum have started thinking that those who order from hobbycity are cheap.

Back to the topic, I will be posting some pics soon.
Logged

 

Read
« Reply #13 on: February 16, 2010, 10:09:58 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Back to the topic, I will be posting some pics soon.

Don't do that, I am already feeling jealous >Cheesy Drool
Logged
 

Read
« Reply #14 on: February 16, 2010, 10:33:18 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Here are some pictures.
I havent opened the packets yet, but after being flying the miniTitan, i somehow feel that this heli is very small. Its definitely smaller than the mini Titan.
Overall the quality looks excellant !

DSC03046.jpg
Re: HK 450 GT Pro build
* DSC03046.jpg (23.43 KB, 522x392 - viewed 2050 times.)
This post has 3 more images(s)/attachment(s). Please login or register to view them.
Logged

 

Read
« Reply #15 on: February 16, 2010, 10:39:26 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



One more here.

There is no manual included here. I will need to search the net and find the Align manual, or perhaps an HK one.

Here is what i plan to use on this setup :
HK 450 GT Heli
MG-14 metal gear servos on cyclic
Turnigy DS480 digital servo on rudder
HK 401 Gyro
Turnigy 2200 3S 11.1V battery
Futaba 10C radio / 7 channel 2.4G rx
Turnigy Typhoon 2215 motor
Turnigy Plush 40A ESC

At this point i would like to thank Vinay for his HK450-MT thread, as from there i read about the motor, and the digital servo on rudder. That helped in selection greatly.

I would start building this at least a month from now, since i have the electronics on back order at Hobbycity. I hope to have them by end March.


DSC03049.jpg
Re: HK 450 GT Pro build
* DSC03049.jpg (53.76 KB, 653x490 - viewed 2109 times.)
Logged

 

Read
« Reply #16 on: February 16, 2010, 11:35:31 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



Nice discussion this is. Reminds me how some people at the other forum have started thinking that those who order from hobbycity are cheap.

Don't worry about that Gaurav.  It helped show everyone how "mature" they are.  I can see the forum owner saying this, as the vested interests are clear (just reading through that thread, and seeing how he refused to respond to why HobbyCity was blocked is ample proof where his priorities are).  But I am saddened by the attitude of people acting as mere sidekicks, instead of properly advising him about what is best for the hobby, and how to make it accessible to more people. That is what a true friend should do (both as a friend of the person and as a friend of the hobby).  It is truly unfortunate that many many years of RC life has not only added to people's technical knowledge, but it also seems to have built an "elitist" mentality in them Sad Basically, it is like saying that "if you do not covet a Morris Minor and instead wish to buy a Tato Nano, then you are not welcome on the road" ! 

I just hope no newcomer ends up there.  Even being on international forums is a much more welcoming and useful experience than being asked to get every single item from one hobby shop ! Either that, or you get ridiculed ! This hobby will never see the kind of uptake everyone wishes to see, with this attitude and treatment.

This is not the thread for this rant, but I did not want to respond there anymore. Thankfully, you guys are doing a great job of helping newcomers find products from the right sources, always remembering that most LHSes are banking on your support to stay alive.
 
« Last Edit: February 17, 2010, 01:12:30 AM by anwar » Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #17 on: February 17, 2010, 12:49:32 AM »
ujjwaana
Plane Lover
Forum Hero

*****

Reputation Power: 28 
ujjwaana barely matters.ujjwaana barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 2384
Join Date: Oct, 2009




Nice discussion this is. Reminds me how some people at the other forum have started thinking that those who order from hobbycity are cheap.


Has this something to do with my 'Full and Final' post there? just asking as I have not been there since.

....
....
It helped show everyone how "mature" they are.  I can see the forum owner saying this, as the vested interests are clear ...
...

Isn't that clear from the top domain suffix of .COM there? (Wiki def for .Com http://tiny.cc/dzBgH Grin Cheesy Wink  I should have noticed that long back and saved my time and energy from those provocations.

I just hope no newcomer ends up there.  Even being on international forums is a much more welcoming and useful experience than being asked to get every single item from one hobby shop !

Amen!!  Thumbs Up
« Last Edit: February 17, 2010, 01:26:23 AM by ujjwaana » Logged

Futaba 8FG Super | HK-450v2 | FA-22 Raptor |AXN Floater-Jet | FunJet | Black Horse Edge 540 | Amp Master 015 | 2.3M Big Brother
 

Read
« Reply #18 on: February 17, 2010, 01:10:50 AM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



You should visit Grin 
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #19 on: February 17, 2010, 12:28:01 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



But I am saddened by the attitude of people acting as mere sidekicks, instead of properly advising him about what is best for the hobby, and how to make it accessible to more people.

Exactly, There were some people on that forum, for whom I had a high regard of ( even though i never met them ), and i thought they would have a broader/more mature view of looking at things. However their views/attitude recently was kind of shocking to me too.

Regarding Elitism, in my view those who have this kind of feeling are not really hobbyists at all. A true aeromodeller would love and help with anyone and everything that relates to aviation. Be it a cheap HC 2Ch airplane or a sophisticated jet. When someone looks down upon someone just because they are buying the brands, its pitiable really. 

The recent discussions reminded me, of how Anwar handled things a couple of months back when IRC went down. I was the one who started the thread "IRC down" and it was so welcoming to see Anwar's stance at that. He was so understandable there, and even offered help to get the site back up. That is open-ness in the true sense and a good . Good job. I am glad we have a gem of a person leading this forum.


Ujjwana, There was nothing to do with your final post there.

Coming back to the heli, Good to have 3 people here who are building HK helis.
I will post back soon with some updates.

-Gaurav
Logged

 

Read
« Reply #20 on: February 17, 2010, 04:12:31 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



MAke it 4, I have another one on the way.
Logged
 

Read
« Reply #21 on: February 17, 2010, 04:22:00 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



He was so understandable there...

Gaurav -My first interaction with Sunil was when I requested that a note about this forum be posted there, when we were starting.  He was very understanding about that (even though it was in direct competition to what he was doing), and let my introduction post stay there for a week.  Even though I disagreed with how he was running the forum (with a single LHS focus), that act earned him my respect.

It seems that the sudden growth of this forum has turned the tide on that Sad With the current attitude, I see that forum deteriorating rapidly (even if some others are trying to save it or put a more humane face to it); that is NOT something to be celebrated. Every suggestion to improve it is looked upon as either an ego issue, or as a business conflict.  I have decided not to participate even in technical discussions there anymore. Hopefully someone else will stand up and say that 2.4Ghz flyers are NOT beta testers for the forum owner, and it is a well adopted technology that is much more widely used now as compared to FM. Hopefully the large percent of members ON THAT FORUM ITSELF who also purchase from Hobbycity (or the ones who are not knowledgeable enough to understand the true value of a airplane "kit") will some day be NO longer looked down as being "worthless".
« Last Edit: February 17, 2010, 05:24:41 PM by anwar » Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #22 on: February 17, 2010, 09:26:19 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



if it wasnt for anwars patience in solving problems and helping, I would have never visited RCI nor sticked to it. Thumbs Up AFAIK, I became a member of IRC, but I never felt like posting there. Lips Sealed
Logged
 

Read
« Reply #23 on: March 22, 2010, 02:31:51 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Well, looks like the time has come for me to begin work on this.
Here is the equipment i plan to use :
HK 450 GT Pro heli - Belt version
Turnigy 2215 motor
Turnigy Super Brain 40A ESC
3x MG-14 Hextronic servos for cyclic
Turnigy D520 for the rudder ( I know this isnt the best choice, but the 480 as not available )
HK-401B Gyro
Turnigy 2200mAh 3S 20C battery
Futaba 10C radio and 7 channel RX

Hope to take pictures along the way. Will also post links to manuals video that i will be downloading, since the HK heli comes with no documentation whatsoever.

-Gaurav
Logged

 

Read
« Reply #24 on: March 22, 2010, 04:35:19 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



I had huge issues with the MG 14s. In first case, one of the servos was travelling slower than the other two Angry Shocked. I had by this time thread locked all the screws  Bang Head. Luckily I have the habit of ordering spare. So I had one servo spare and changed it. Now this servo was travelling more than other two. Luckily this issue was radio program fixable. Smiley

All the best.
Logged
 

Read
« Reply #25 on: March 22, 2010, 04:37:49 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



My new favourite:

http://www.hobbycity.com/hobbyking/store/uh_viewItem.asp?idProduct=10976
Logged
 

Read
« Reply #26 on: March 22, 2010, 10:05:19 PM »
ujjwaana
Plane Lover
Forum Hero

*****

Reputation Power: 28 
ujjwaana barely matters.ujjwaana barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Intermediate
Posts: 2384
Join Date: Oct, 2009



Grrr!!!! This only came after I already spent on my dearly $23 on the Turnigy DS480 Servo!
Logged

Futaba 8FG Super | HK-450v2 | FA-22 Raptor |AXN Floater-Jet | FunJet | Black Horse Edge 540 | Amp Master 015 | 2.3M Big Brother
 

Read
« Reply #27 on: March 23, 2010, 06:56:22 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Ok, I downloaded the Bob Finless Videos from helifreak.com today and also the manual from the align website.
The first task I did was to open up the rotor grips in order to grease the thrust bearings and also locktite the screws.
What i saw surprised me ! The screws on the rotor grips were very loose, with absolutely no locktite on them and the thrust bearings were also dry. I packed them with TT Bearing grease and assembled the grips back.
Had anyone overlooked or assumed this was built correctly, it would have led to a disaster, and possibly injuries.

I am not sure if i should open all screws/nuts to check for locktite. I think i will just check everything for tightness and not dismantle everything. Experienced fliers, please tell me what other joints are critical.

I also lubed the one way bearing. it was dry and tight. After lubricating it became free.

Thats all so far ! The quality looks superb. Makes me wonder how HK has got it all so cheap. I hope it flies well too !

Vinay, your post about MG-14 has me worried. I have only 3 of them and hope they do not put up an act when i get them on my heli .
Logged

 

Read
« Reply #28 on: March 23, 2010, 07:05:36 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Welcome to the world of cheap helis.  Wink

make sure u loctite after leveling the swash plate and checking the speed of the servo travel. I ended up loctiting the screws 3 times. Ofcourse I cleaned them each time. what a pain. you dont do the same mistake. also i had different speed on one servo coz it came in a different parcel/order Cheesy. hope yours are fine. I saw that many on RCGroups are facing the same issues with the servos.

I took 12 hours just mouthing the servo and leveling the swash plate and setting the equal travel. This is for my HK 450 V2 plastic heli. The quality of the head is better than 450 MT. Grin except its plastic in 2 places.
« Last Edit: March 23, 2010, 07:07:48 PM by vinay » Logged
 

Read
« Reply #29 on: March 23, 2010, 07:30:18 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



make sure u loctite after leveling the swash plate and checking the speed of the servo travel. I ended up loctiting the screws 3 times.

Vinay, Which screws are you talking about here ? Surely not the ones on the feathering shaft, that hold the main rotor grips together ?
Not sure how swash levelling would affect this ...
Logged

 

Read
« Reply #30 on: March 23, 2010, 10:24:09 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



I am speaking of the frame screws, which you will be removing to mount the servos.
Logged
 

Read
« Reply #31 on: March 23, 2010, 11:59:17 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



The first task I did was to open up the rotor grips in order to grease the thrust bearings and also locktite the screws.
What i saw surprised me ! The screws on the rotor grips were very loose, with absolutely no locktite on them and the thrust bearings were also dry.

Align is very clear about this. They specify multiple times in the manual to remove factory assembled pieces and double check everything for thread lock and lubrication.

I was not sure about the HK stuff, so I asked around the US forums, and everyone said just open up and rebuild just to be sure.  I mean if Align (which costs a lot more) asks to double check, I guess it is a no-brainer that the HK ones would definitely need that.
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #32 on: March 24, 2010, 07:53:13 AM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



On my MT everything came thread locked. so hard that it was hard to remove. But I had checked every screw by tightening it further before maidening it. Its bad to know about the inconsistency. removing the Philips on the head required a 2mm #0 screw driver (the align TREX 250 Philip screw driver is a perfect fit)
Logged
 

Read
« Reply #33 on: March 25, 2010, 03:11:17 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Ok, i checked the entire head. Luckily except for the main head screws that pack the thrust bearings and the grips, rest all were lock-tited and snug.
After checking the rotor head, i proceeded to install the mg-14 cyclic servos. Put my throttle at center stick, exact 50, then attached the arms to all three servos. Made sure they were all perpendicular ( had to do a very slight subtrim on a couple ).
Put in all the servos. At this point i must say that the Finless videos at Helifreak kind of take all the fun out from the build.
Though i had printed out the manual , i never needed to consult that as watching the videos while building helped me get all the servos setup in about 30 minutes !

Now, on i went to the tail section. Again checked all screws for lock tite, and rebuilt the tail rotor grips.
Threaded the belt through the boom, and attached it to the tail rotor assembly and then to the main body.
Lastly installed the boom supports.

Regarding the quality of the kit, so far I have nothing really to complain for. The screw quality is nice, everything fitted properly, and nothing missing so far. I think over time things would become more apparent, when we will need to replace components or rebuild .

Pictures to come soon !
Logged

 

Read
« Reply #34 on: March 26, 2010, 10:43:38 AM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Ok a bunch of questions for Anwar/Vinay and others who are experienced here :

- The Tail servo plate seems to be designed for a large servo with 4 screws. I have a small micro servo, so any ideas on how to mount this ? Last resort for me would be to build a Plywood mounting plate and use that to mount the servo . Even then the height would be less, thus the linkage rod would be bent, unless I raise the servo by using another plywood mount

- This may be a little tough to explain. I have the main shaft installed. There is no play in the main shaft that goes through the bearings. However the main gear has a little up-down play . The tail drive gear is sold. Just the main gear slides up and down a little. Is that OK ?

- Need to solder the 3.5mm connectors on the motor and ESC. Since I am new to brushless electronics, I see 3 wires on the motor and ESC. Which goes where ? Or should i just plug any, and get the correct direction of rotation ?

I guess thats it for now.
Thanks !
Logged

 

Read
« Reply #35 on: March 26, 2010, 11:33:58 AM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



1) I cant comment w/o a pic of the servo holder.

2)Don't know. Not able to understand where the play is. If I still understood properly then you need to slightly push the shaft upwards till there is no play and pull down the holder(the hub that is present at the center of the main shaft) and tighten it.

3)The 3 wires of ESC can connect to any 3 wires on the motor. if the motor turns in the non desired direction, then just interchange any 2 wires, this will reverse the direction.
Logged
 

Read
« Reply #36 on: March 27, 2010, 09:28:24 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



1. The Align original tail servo mount was able to take all types of servos (I do remember using micro servos and mini servos on that mount).  I am not sure if I used both holes to mount the servo though, might have used only one hole on one of the types.

2. You need to ensure there is no up-down movement of the main gear.

3. Amen to Vinay Wink
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #37 on: March 27, 2010, 09:34:54 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



I am so much pissed off with MG14s. Angry

Once I learn hovering and FFF, I will leap to Hitecs and GY 401, or Probably sparten. I didnt want to use these costly ones as a beginner. Airtronics is no less of a troubler.
Logged
 

Read
« Reply #38 on: March 27, 2010, 09:47:00 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



Lots of questions Wink

Many people are happy with the MG-14s (at least as per online reviews/reports).  You just need to get couple more, so that they all match up (instead of investing heavily on other metal gear ones) ?

Are you not happy with the HK401 gyro ? 

What is wrong with Airtronics ? Do you mean the radio ?
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #39 on: March 27, 2010, 10:17:48 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



1) Ya many are happy. But there a few who suffered a bad fate, and I fell into the same category.  Nope Iam not investing on other metal gear servos for the 450s. I will some how manage with the existing stuff. But for a 500 or 600 size heli in the future it will be Hitec/branded servos only.

2)Gyro I dont know. I never flew for a month now. Rajesh was the person to fly my heli last. Since then never flown. So cant comment.

3)Ya RDS is kinda radio that is good, but with its own limitations. You cant correct the mistakes that cheap servos cause. Its good to fly. In fact many DX7 owners on the net say RDS is better for Helis compared to DX7 due to its crispness and extra channel. But RDS rather demands more correct physical setup on the Heli rather than offering to fix things using programming. It does offer enough programming to fix, but still when I change modes it kinda acts weird - believe me, I have tried everything.

I am setting up my Plastic HK 450, and noted that once the Rx is swithced off for some time and switched on, the servo travel is reducing for one of the servo (MG14) - This I am able to find out using a swash plate leveler - the travel is reduced by 1 mm. This reduced servo travel is correcting out 1 min after RX is turned on. To blame the RX or servos? Head Scratching These are some of the few problems I am facing.

Many satisfied people that you may see on RCG/RCU/WFlyer regarding MG 14s are the ones who dont care much for precision/ Lucky ones/ Good radios? Infact many people eyeball for leveled swash plate and start flying.  Grin and the servo gets 5 *****

I can fix all the issues that MG 14s are causing using RDS itself, but it is going to take 3 to 4X the time as I have to correct things physically and lil programatically. Its like building a tower out of a deck of cards . Infact this second heli Iam building should end up as a perfectly setup 3D heli, inspite of all the problems. Thats my goal  Thumbs Up

I never had any issues seting up the HK 450 MT using HXT 900s and I had done it in 3 hrs for the servos mounting part Giggle

« Last Edit: March 27, 2010, 10:28:51 PM by vinay » Logged
 

Read
« Reply #40 on: March 27, 2010, 11:06:56 PM »
kartikshah
Plane Lover
Active Member
**

Reputation Power: 2 
kartikshah has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 96
Join Date: Oct, 2009




You cant correct the mistakes that cheap servos cause.

I am setting up my Plastic HK 450, and noted that once the Rx is swithced off for some time and switched on, the servo travel is reducing for one of the servo (MG14) - This I am able to find out using a swash plate leveler - the travel is reduced by 1 mm. This reduced servo travel is correcting out 1 min after RX is turned on. To blame the RX or servos? Head Scratching

I can fix all the issues that MG 14s are causing using RDS itself, but it is going to take 3 to 4X the time as I have to correct things physically and lil programatically. Its like building a tower out of a deck of cards . Infact this second heli Iam building should end up as a perfectly setup 3D heli, inspite of all the problems. Thats my goal  Thumbs Up

I never had any issues seting up the HK 450 MT using HXT 900s and I had done it in 3 hrs for the servos mounting part Giggle



Cheap servos can't be fixed by radios, if they could then no one would buy or make high/costly servos....
The problem lies with the servo, either its under load or hunting...... the best is to change the same servo to another place and check or put another servo...... hope this helps.......

 
Logged

* Multiplex EasyStar II * JR XG8 * Phoenix Tiger 60 * 1/8 Truggy * Multiplex Xeno Uni *
 

Read
« Reply #41 on: March 27, 2010, 11:25:47 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



Many satisfied people that you may see on RCG/RCU/WFlyer regarding MG 14s are the ones who dont care much for precision/ Lucky ones/ Good radios? Infact many people eyeball for leveled swash plate and start flying.  Grin and the servo gets 5 *****

What ever the case is, there is one thing to be remembered. *As long as the behavior is consistent*, people should not bank on perfectness of the swash plate or other items when it comes to flight stability.  I get this time and again on the field, with people complaining that "the heli drifts, but the one on the sim does not, so this must have some more setup to be done" !  The reality is that perfect setups are next to impossible (or are impossible) in physical terms, while it is very easy on the sims.  When one adds other variables like wind, it gets even worse.

The important thing is that YOU fly the heli (or plane), and do not let the aircraft fly you ! Use the help of things like trim etc to make it behave better, but then *your thumbs are the ones that makes the rules in this game*. Always remember that aspect.  Of course if it drifts wildly, or the behavior changes periodically (like a servo changing its range of travel arbitrarily in the middle of a flight etc), then there is something to be dealt with.  Otherwise, be sure to train your thumbs to deal with the minor imperfections, and leave the desire for perfectness at the sim itself.

In short, I felt that there is nothing wrong with eyeballing the swash and start flying Smiley  May not be the best way for an *absolute* beginner (who has not trained himself using wind etc on the sim) but for others, that is a good enough start, and that is probably why these servos get 5 stars !

Over time, they make small corrections to their setup, that the brand of servo becomes an afterthought.

I do agree with Kartik that the behavior should be consistent.
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #42 on: March 28, 2010, 10:29:57 AM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Cheap servos can't be fixed by radios, if they could then no one would buy or make high/costly servos....
The problem lies with the servo, either its under load or hunting...... the best is to change the same servo to another place and check or put another servo...... hope this helps.......

Karthik, I tried chaning the servo as well, but even that servo was not good enough. I agree There is a reason why a HItec costs 35 $ for a metal gear and the HXT MG 14 costs 7 $ per metal gear. Though I can buy 5 servos and of HXT and pic the best ones out of them at the price of 1 hitec. THe point is, the pain thats caused in picking/fixing/trying. I have spent almost 20 hrs to setup the servos and level the swash plate properly.

Coming to RDS, there is no EPA on individual cyclics in CCPM mode. But the link you gave me last time regarding RDS Master-Slave Mixing helped me a lot in correcting the travel of each servos. But when I change modes - say from 2 to 1, then for some reason there is a slight readjustment of one servo - which theoretically should not be happening. I noted that the other factors like individual trims were all setup neutrally across all modes, but still this weird behavior. DX7 could have easily solved this using individual EPA. But the price I got this RDS for - NO COMPLAINS!  Grin - or the ones RCD deal with Extra 7 ch Rx. I would any day recommend RDS. Neither am I feeling guilty that I brought RDS.

Anwar bhai, I do agree that pure perfection is not required unless hard core people like Tareq flies the Heli for his 3D stunts. But its in my nature to keep things as perfect as possible, be it RC or Office. A slight 1/2 mm variation in the swash plate was making me feel that I was setting up the Heli improperly. Though I know it wont cause any problems during normal hovering and FFF, I would still have the feeling that I didn't do something properly.

Anyways, I finished setting up the Swash plate and setting up the pitches of the blades as clean and neat as possible. So the setting up head ache is over.

Fixed the motor as well with the paper trick and the gap came out perfecly.

Also noted that the Plastic HK the Feathering shaft screws were not at all tight. After removing I found out weird things:

1)There was grease on the screws. No wonder the thread lock did not hold - I removed the grease from the screws using Colin, Slightly heated up feathering shaft with torch lighter to evaporate any grease. Inserted removed screws many times to remove any oil and cleaned the screws again with colin. I used lots of blue anabond. I think next time when I remove the screws I need to heat up a lot.  Grin

2)Though this is a V2 version the trust bearing in the feathering shaft are different. The trust bearings here are ordinary bearings(There are 6 bearings totally inside the head - 3 on each sides.) Not the ones that was in my HK 450 MTs head or as in Align manual(3 part bearing). Weird.  Head Scratching

I feel this ones is better. You can tighten up as much as you want and it stays cool, unlike the MT/Align bearing where they started making clicking noise when tightened too much.
Logged
 

Read
« Reply #43 on: March 28, 2010, 12:13:00 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Some more progress.
1. The play was not in the rotor head, rather the main gear. Figured out that there was a brass collar that goe on the gear to prevent this. I installed that and all is good now.

2. I am still stumped as to how to mount the micro rudder servo. Will try to post a picture later today. The heli has an aluminium servo mount, designed for a full size servo with 4 holes, and the tail pushrod comes up a little high as well. If nothing else I would make a plywood mount/adaptor here. Hopefully somebody can suggest me a better/easier way here 1

3. MG-14 servos. I was able to setup mine without any problems. I have the swash levelled. and the servos all seem to work OK. BTW I do not have any swash leveller tool, so just eyeball it.
Vinay, though I like perfection too, but when you are learning, i think giving hours on end to get the swashplate "exactly" level is no good. Just get it as accurate as you can and go fly !
What good would it be if you have it exactly level, only to find that you need to trim it because of CG/other interactions.
At this point, i think having more of stick time, thank bench time is what we beginners should aim at.

Now, regarding good quality servos/equipment, I have always used Futaba ( and lately Hitec ) servos. Though expensive they have never failed for me. With these cheap servos, i am not sure how long they would lost, or how much damage they would cause. Just a simple short circuit could fry the Rx, ESC, and other electronics !
Since i wanted to try a cheap setup, i went for these, and so far been pretty happy.

Now i need the 3.5m connectors before I can continue. Also once the rudder servo issue is resolved, i should be in good shape soon !

-Gaurav
Logged

 

Read
« Reply #44 on: March 28, 2010, 01:16:58 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Just get it as accurate as you can and go fly !

Thats the problem with staying in bangalore and working for a SW company.  Grin
Logged
 

Read
« Reply #45 on: March 28, 2010, 03:05:10 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



2. I am still stumped as to how to mount the micro rudder servo. Will try to post a picture later today. The heli has an aluminium servo mount, designed for a full size servo with 4 holes, and the tail pushrod comes up a little high as well. If nothing else I would make a plywood mount/adaptor here. Hopefully somebody can suggest me a better/easier way here 1

This is what is confusing me, as I have never seen a tail mount for a 450 class heli that can ONLY take FULL size servos alone.  They can always take MINI and MICRO servos.  By MINI servos, I mean the ones like the popular Futaba s9650 (which is often paired with the GY401 gyro, and that is the setup I use).  So you either mount the micro servos with the only one of the two holes, or mount a mini servo using both the holes. 

You need to post pictures for us to see what the issue is.
« Last Edit: March 28, 2010, 03:18:29 PM by anwar » Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #46 on: March 28, 2010, 03:14:42 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



But its in my nature to keep things as perfect as possible, be it RC or Office.

Attention to detail Smiley May the force be with you Thumbs Up

If you are doing the tinkering yourself, it is a good thing. 

Slightly heated up feathering shaft with torch lighter to evaporate any grease.

Isopropyl alcohol on a tissue paper would be the common method for cleaning screws.
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #47 on: March 28, 2010, 05:13:03 PM »
kartikshah
Plane Lover
Active Member
**

Reputation Power: 2 
kartikshah has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 96
Join Date: Oct, 2009



@ vinay,

another link and you can post your problem there and there should be a solution as thousands are using it without a problem, as maybe you have missed out something while mixing.
http://www.helifreak.com/showthread.php?t=170415
« Last Edit: March 28, 2010, 10:46:43 PM by kartikshah » Logged

* Multiplex EasyStar II * JR XG8 * Phoenix Tiger 60 * 1/8 Truggy * Multiplex Xeno Uni *
 

Read
« Reply #48 on: March 29, 2010, 07:03:08 AM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Thanks Karthik for the link, but they again link to the same post as before.

I have leveled the swash plate for full range from -10 to +10 on mode 2 and -2 to +10 on other modes.

Its clean and level on mode 2 throughout the entire range. But when I change to other modes (Normal,1,3), then below Center throttle stick, one of the servos(the bad servo - Aileron Servo) moves down slightly faster than the other two (1 mm at -2 degrees). Basically this was my complaint before, but who the heck cares as this is the pitch I use to keep the Heli pushed to the ground in the Normal mode Grin. And the 1 mm deviation should not cause the Heli to topple over.  Wink As I get the throttle stick to move up(-0.5 degrees), the servos correct them self. So I dont think its going to be an issue anyway. As some people dont even level the swash plate to that precision.
Logged
 

Read
« Reply #49 on: April 10, 2010, 06:15:26 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



So hows it going? busy with raptor 50?
Logged
 

Read
« Reply #50 on: April 10, 2010, 06:45:09 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Well yeah the Raptor 50 has taken my hobby time. However, i am waiting for the 3.5 MM bullet connectors before i can install the ESC and motor.. Hope to have that next week
Logged

 

Read
« Reply #51 on: April 15, 2010, 07:45:53 AM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Getting back here.
Still need to figure out how to mount the rudder servo. The heli has an aluminium servo mount but the opening is for a larger servo. I have a micro servo and its too loose to fit .
Plus the pushrod comes up way high.
See attached, and please suggest what to do.
From what I think, i would need to make a plywood mount. It would be dumb on HK's part to make a mount that can not take smaller micro servos.

DSC00475.jpg
Re: HK 450 GT Pro build
* DSC00475.jpg (32.3 KB, 800x355 - viewed 1126 times.)
This post has 2 more images(s)/attachment(s). Please login or register to view them.
Logged

 

Read
« Reply #52 on: April 15, 2010, 09:04:18 AM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Well, my heli had a boom servo mount, so I am unaware on how to solve that problem, BTW cant you mount the servo on One edge with the servo mounting holes aligning to the right or the left holes?
Logged
 

Read
« Reply #53 on: April 15, 2010, 09:25:33 AM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



Gaurav - The most common tail servos are mini-servos (Futaba s9650, s9257, Align DS520 etc), that is why it was NOT designed for micro servos or standard servos. You are up for some DIY it seems.

« Last Edit: April 15, 2010, 09:30:12 AM by anwar » Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #54 on: April 15, 2010, 09:42:48 AM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



BTW, micro servos have not had a good history when it comes to tail control on 450 sized helis (even from Align, you have choice between the DS420 which is micro and DS520 which is mini; and the DS520 is always recommended).

If you insist on using a micro servo and not in the mood for DIY, this will do it :

http://www.hk-parts.com/store/product_info.php?cPath=108&products_id=1205
« Last Edit: April 15, 2010, 09:44:35 AM by anwar » Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #55 on: April 15, 2010, 09:46:36 AM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



I am seeing many unsatisfied customers of Turnigy DS480 and many are settling onto the Hyperion for a few dollars more.
Logged
 

Read
« Reply #56 on: April 15, 2010, 10:29:16 AM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Well, I do have the micro servo, and will go the DIY way. Cannot spend more for something I can make in a few hours out of some scrap balsa and ply .
Will post pictures as soon as done , hopefully by evening today.
Logged

 

Read
« Reply #57 on: April 19, 2010, 06:02:03 PM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



Here is a seller for parts.

http://www.hk-parts.com
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #58 on: April 19, 2010, 06:15:01 PM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



I saw this hk-parts site a few months back, quality seems top notch and prices a lot lot less than Align. I am sticking to the E bay seller fmt_model, low quality, but good for a guy like me who crashes initially.

http://stores.ebay.com/FMTmodel_450PRO-Heli-Parts-For-TREX_W0QQ_fsubZ1320211012QQ_sidZ773537222QQ_trksidZp4634Q2ec0Q2em322
Logged
 

Read
« Reply #59 on: June 09, 2010, 09:49:18 AM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Guys,
Just got back after a 2 week long trip. Good thing - I got my Futaba 10C back, after the trim tab problem was fixed by their Support.

I landed back on Sunday and the first thing I wanted to do was to finish this HK-450GT and get it in the air.
Had to od the following -
- Make a wooden mount to mount the micro servo ( HK-450GT has a mini servo mount )
- Install motor, ESC, Gyro and zip-tie all wiring
- Install receiver .

Now I did this over the last 2 evenings, and powered it up today. After a few clicks of trim, and correcting the Gyro reversing etc, i was able to hover it ! Few things I noted :

-- Rudder control is very very sensitve. I mean if i just touch the stick, the heli swings very fast ( compared to my miniTitan )
-- The gyro gain is at around 10. If i increase it a little, i get the tail wag. If i decrease it, then there is a slight drift.

I think those are all the problems i seem have at the moment.
Will be doing more flights today evening to see how it goes. Will post videos here too.

-Gaurav
Logged

 

Read
« Reply #60 on: June 09, 2010, 09:57:12 AM »
anwar
Administrator
Forum Hero

*****

Reputation Power: 141 
anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!anwar is awe-inspiring!
Offline Offline

City: Doha (Qatar) & Thrissur
State: Kerala
RC Skills: Advanced
Posts: 11619
Join Date: Mar, 2009

RC India - Flying and racing with open minds !



Welcome back !

-- Rudder control is very very sensitve. I mean if i just touch the stick, the heli swings very fast ( compared to my miniTitan )

To control piro rate, reduce the end points (travel adjustment / EPA / ATV) on the rudder channel.  I typically keep mine at around 80% on both sides.  You can go even lower, to get a piro rate that you feel comfortable with.

-- The gyro gain is at around 10. If i increase it a little, i get the tail wag. If i decrease it, then there is a slight drift.

Move the linkage one (or possibly two) holes inside on the rudder servo arm. That usually helps.  BTW, gain is pretty much what it is, as long as the heli holds steady.  But 10 seems uncharacteristically low.
Logged

Hangar : Please see my introduction.
RC India forum and me : About this forum.
 

Read
« Reply #61 on: July 21, 2010, 07:22:09 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Been flying the heli lately. Have had around 30 flights. Flight characteristics are good. Responsive, agile, and stable with 30% expo.

That said, I wouldn't recommend this heli to anyone who can afford a better quality heli like a Compass Models Atom or TT Mini Titan. Reason being, that the quality of parts is not good, and you spend more time fiddling around than flying really.

For people on a tight budget, it can get them in the air cheaply, for others, I suggest give it a pass.

-Gaurav
Logged

 

Read
« Reply #62 on: July 21, 2010, 07:54:01 PM »
controlflyer
Heli Lover
Forum Hero

*****

Reputation Power: 10 
controlflyer has no influence.
Offline Offline

City: Panaji
State: Goa
RC Skills: Intermediate
Posts: 848
Join Date: Jul, 2010

when I am sober my heli is drunk..



Hello Gaurav.
firstly, let me introduce myself, I am Dorwin from Goa, currently in Kuwait.
Is this the GT Pro you brought and built?

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10900

because this one is in my cart, if you would'nt recommend this one, which do you think is the best kit for a 450 size set up?
BTW, mine will go with a 5 rotor head assembly as I am going scale now, no 3D!

Regards,

Dorwin
Logged

Money flies when the transmitter is ON...
 

Read
« Reply #63 on: July 21, 2010, 09:09:18 PM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



No this isnt the one.
The one I bought and built was : http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10902&Product_Name=HK-450GT_Pro_3D_Belt-Drive_Helicopter_Kit_(Align_T-Rex_Compat.)


Logged

 

Read
« Reply #64 on: July 22, 2010, 07:33:02 AM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



Hey Gaurav, nice to see you around. BTW, ya these helis require fiddling a lot initially, as the saying goes what you pay is what you get. But these helis have thought me how to make even crap fly well  Giggle  Thumbs Up

See my thread here:

http://www.rcindia.org/helis/hk-450-v2-plastic-build-thread/
Logged
 

Read
« Reply #65 on: July 22, 2010, 09:58:10 AM »
gauravag
Plane Lover
Forum Hero
*****

Reputation Power: 23 
gauravag barely matters.gauravag barely matters.
Offline Offline

City: Allahabad
State: Uttar Pradesh
RC Skills: Advanced
Posts: 1604
Join Date: Mar, 2009

RC Plane Designer / Test Pilot @ Team Vortex-RC



Hello Vinay,
Yes good to be back to the RCI community, Had 3 months of extensive travelling, but back now. Look forward to lots of flying, and lots of postings here !

I have been following your threads on both your helis. These helis do give an affordable way to get in the air, but I am not sure what their long term cost is. Cost/flight and Time tweaking/flight for my MiniTitan came out to be less than that of HK BTW . Though this depends on individual, and the kind of flying/skills one does.

One more observation, i would like to post here, since I have owned both a miniTitan and the HK 450 GT Pro (whichi is a Align 450 Pro clone ) , is, that the miniTitan was faaaar easy to work with. ie if you wanted to take out a servo, or a motor, then time to do it on mini Titan would be 20% of what would be on HK450 PRO. I am not sure if all Aligns are like that, but I somehow had the liking to how easy it was to work on the MT.

Flying wise, the HK was much more agile, and kind of "wanted" to do 3D itself Smiley MT seemed to be a very gentle heli !
Logged

 

Read
« Reply #66 on: July 23, 2010, 07:24:57 AM »
vinay
Global Moderator
Forum Hero

*****

Reputation Power: 20 
vinay barely matters.vinay barely matters.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 1754
Join Date: Sep, 2009



BTW the GT Pro is a sports clone with a PRO tail.
Logged
 

Pages: 1 2 3 [All]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
CHALLENGER-my first coro build-build log
Electric Planes
prateek13 10 10890 Last post August 03, 2012, 09:16:50 AM
by KALYANPRODHAN
anyone knows how to build a PCB for RC car?
Cars
jeremy.2231 7 8796 Last post October 30, 2010, 09:20:11 AM
by KALYANPRODHAN
Su-37 Build - First build issues
Electric Planes
dheerajjuneja 16 10278 Last post April 08, 2013, 06:34:02 PM
by dheerajjuneja
T-40 Build 1540 mm
Gas/Glow/Nitro Planes
Aeroresurrect 22 6910 Last post October 27, 2020, 04:01:11 PM
by sanjayrai55
rc blimp build
Self-designed, DIY and College Projects
Aanishp 9 8881 Last post September 28, 2021, 04:35:46 AM
by sanjayrai55