RC India

RC Models => Multirotors => Topic started by: Rahulvyas on May 30, 2013, 09:38:39 AM



Title: Which of these is a better frame?
Post by: Rahulvyas on May 30, 2013, 09:38:39 AM
1) H.A.L hexacopter frame 775mm

(http://www.hobbyking.com/hobbyking/store/catalog/25698.jpg)
(http://www.hobbyking.com/hobbyking/store/catalog/25698-9.jpg)

2) Platypus x800  Carbon fiber 800mm
(http://www.heliplane.net/wp-content/uploads/2012/11/QC-SS-X800.jpg)
(http://i01.i.aliimg.com/wsphoto/v0/694376211_3/F03813-Platypus-X800-V6-Carbon-Fiber-Hexacopter-frame-Kit-6-Axis-Hexa-RC-Multi-copter-UFO.jpg)

3) Tarot 680 aluminium!  680mm
(http://www.bevrc.com/images/l/201212/b/13561783960.jpg)
(http://i01.i.aliimg.com/wsphoto/v1/698213367_5/F04299-Tarot-FY680-3K-Carbon-Fiber-Full-Folding-Hexacopter-680mm-FPV-Aircraft-Frame-6-Axis-hexa.jpg)

I need to fit the 2814 700kv motors.
Some people say HAL and some with x800

Which one do you think?

Note- I added poll so make your vote for sure!



Title: Re: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 30, 2013, 10:49:36 AM
My vote is for tarot...
Or go for streak

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Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 30, 2013, 10:55:08 AM
streak- costly :(
tarot is smaller but looks cool!
by the way, this is not CF. its alu

ஜ۩۞۩ஜ

thanks for your vote bhaiya


Title: Re: Which of these is a better frame?
Post by: santhosh-r on May 30, 2013, 12:22:03 PM
Eventhough I have not been into multis' I vote for  H.A.L hexacopter frame 775mm ....
it looks sturdy and build is very good.... good looking...:D


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 30, 2013, 12:27:42 PM
Thanks santosh ji :)
ya it looks cool


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 30, 2013, 01:33:26 PM
Hey rahul i vote for H.A.L it is quite sturdy and for cheap tarot is quite expensive. Unless you will do Photography with a high end DSLR cam i think the tarot would be useless. A cheap DSLR is what i think i would mount on the H.A.L


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 30, 2013, 01:35:29 PM
and platypus x800?

Thanks for your vote btw.


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 30, 2013, 01:40:01 PM
Plus you have a 28-14 so according to specs it should fit, if the H.A.L crashes(god forbid) you can buy another one inside the price of the tarot. ;D ;)


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 30, 2013, 01:41:07 PM
Well. tarot is for 115$ incl shipping.
HAL costs 95$ incl shipping. so not a big diff. :)


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 30, 2013, 01:44:12 PM
Woah really? i saw a site where it sold tarot for 169.99$

Then you should go for tarot, but is tarot alu or cf?


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 30, 2013, 01:44:53 PM
aluminium. CF is too expensive.
x800 is carbon fiber and affordable 145$


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 30, 2013, 01:48:28 PM
If CF then go for tarot, but the cf looks like stickers and tarot is written in aluminium colour on it so i suspect  if its cf. They have just laser etched their name on the inner aluminium.(It does look like that)


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 30, 2013, 01:49:46 PM
Bro, there are two versions- alu and cf, I have put the alu version in the poll and not the cf.
but cf looks cooler


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 30, 2013, 01:52:13 PM
In the end it comes to: if the better one is in my budget why should i buy the cheaper frame. ;) ;)
If you have money to spend on the x800 then thats the best otherwise go with tarot which looks quite sturdy and good. ;D ;D ;D
Scrapped your homemade hexacopter plan? and buying a new better looking frame for it?


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 30, 2013, 02:13:30 PM
Yup. Buying new ready made frame.
x800 is in my budget. going for it then!


Title: Re: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 30, 2013, 05:37:47 PM
Rahul I will tell you the landing gear of x800 is a crap.. don't go for that...
Or you may need to replace the landing gear

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Title: Re: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 30, 2013, 05:39:04 PM
Its a flexible kind of plastic and will bounce while landing.. I have the similar landing gear and struggled a lot.. I just altered it now by giving two cross support with cf tube of 10mm

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Title: Re: Which of these is a better frame?
Post by: Adityaamg on May 31, 2013, 12:02:49 AM
i have seen the hk HAL personally, and its a solid frame.
CF feels fragile to me personally.


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 08:06:04 AM
@arun sir, thats what I am looking for, any replacement landing gear?
I know HAL's good. but if I can afford CF, why not CF?

can I see your landing gear which you modified please?

@adityaamg- Exactly. Its a well built frame. but its aluminium. CF is much better and most of the high end frames use CF as the material.


Should I go with taylon if not these?


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 08:08:24 AM
or how about the rctimer 800mm s800 clone frame?


Title: Re: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 31, 2013, 08:44:56 AM
S800 clone has many complaints... that the arm joints are week...


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Title: Re: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 31, 2013, 08:46:46 AM
Hal from hk is good or tarot..
Nd another option is h800 from foxtech... well built and stable

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Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 08:59:08 AM
H800 is costly but ya its well built :)

HAL is heavy? isnt it? Also its not foldable
and tarot is aluminium? and its small?

Is there any way to change the landing gear of x800?


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 31, 2013, 09:42:20 AM
Hey rahul you just made your own fricking Hex man ;D, when the frame arrives analyse the problem in the landing gear and work around that and make a solution. That way you add your own personal touch to the frame ;D ;D ;D ;D ;) ;) ;) ;)


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 09:44:12 AM
Well ya..but its not so esay to work with Carbon fiber. Lets see.


Title: Re: Which of these is a better frame?
Post by: satyagupta on May 31, 2013, 03:20:10 PM
Well ya..but its not so esay to work with Carbon fiber. Lets see.


+1 very true

extra safety


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 04:24:33 PM
:)

After the results of the poll, am even more confused.
all have the same votes :D

Satyasir, if you were at my place, what would you have bought?


Title: Re: Which of these is a better frame?
Post by: satyagupta on May 31, 2013, 05:13:52 PM
I believe in custom building. Till now i have built 2 frames :giggle: 3 rd one i am working one from last 2 months. And its almost final i will start working on it in couple of weeks time. :thumbsup:


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 05:26:39 PM
please upload pics. i only saw first built of yours which is in the forum
and great. I faced problems with loosening of motorss. :( really a big issue. also problem with landing gear, how do you build that?


Title: Re: Which of these is a better frame?
Post by: satyagupta on May 31, 2013, 05:38:39 PM
Sadly i did not bother to take the images of the second frame :( hence i dont have anything to share sorry

About loosening the motors use loctite, i used to face this problem a lot but then i used loctite. Which prevent the screw from loosening.

Landing gear: First i used the acrylic sheets to build the landing gear which was very awesome light weight and sturdy too. But sometimes it was very hard to cut them.

Then i discovered these http://www.hobbyking.com/hobbyking/store/__22995__Turnigy_Talon_Carbon_Fiber_Landing_Gear_2pcs_bag_.html which i used in my second frame and they where fantastic. I am planning to use either same landing gears in my new frame or the landing mechanism of the X525 frame http://www.hobbyking.com/hobbyking/store/__22800__Hobbyking_X525_V3_Glass_Fiber_Quadcopter_Frame_600mm.html

One question: why are you going into heavy lifters? why don't you first atleast try you hands on a small to medium quad? 450 - 550 mid size quads. Do you that, when the quad size is increased the after crash cost is increased drastically :'( :'( :'( :'(

My one suggestion would be to first try your hands on a 450 size quad get used to fly quad and then go for heavy lifters. You should know how quad behaves in wind. This is just my advice as i believe in doing things step by step. Please don't get offended :) :)


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 05:44:34 PM
:D i dont get offended sir. I appreciate your reply.

Ya, I know I should go step by step. But as my quad wasnt soo stable, I am going for a hexa. I think I can do basic flying easily. my last hexa was flying okay as per the frame I built. ( the only problem was nowhere to put the battery and so you see the battery's sticker came off due to using tape)

I want to lift a small sony camera and I want to fly stable. so I went into heavy lifters. :) :)

My first built( which failed) and second build were quads only.  Kk2 wasnt a good board even though it was plug and play.
I now will order Arduflyer with GPS and telemetry from adiboy today or tomorrow.

I hope GPS will be stable. I dont mind wasting time in tuning PID because this project was initiated for learning and research.

By the way, are you ok with the batteries? they work perfect? :)


Title: Re: Which of these is a better frame?
Post by: satyagupta on May 31, 2013, 05:46:16 PM
Haven't tested the batteries yet :D very busy these days. Work and Store have to manage both :)


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 05:54:31 PM
okie.
so x800 is better or HAL?


Title: Re: Which of these is a better frame?
Post by: aniket210696 on May 31, 2013, 06:12:42 PM
x800 looks cooler! and it folds.... :P


Title: Re: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 31, 2013, 06:18:15 PM
Rahul why you sayig that your first quad is a failure.. I am flying the similar quad perfectly now.. with cheap 18amp hk esc and kk 5.5 board..


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Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 06:23:35 PM
x800. done then. sorry guys who voted for HAL and tarot :D

@arun bhaiya, well failed means, I couldnt fly it well and it wasnt very stable. motors had bit too much thrust for that frame,it flew to fast., right?
and you are a professional sir, expert at this, you can even fly broken quadcopter( kidding ) , you are good at this bhaiya
plz upload vids.


Title: Re: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 31, 2013, 06:42:30 PM
You are true a bit over reacting to the controls.. but I liked it very much.. good to learn as I am a beginner.. I can fly it without worries.. cost me only 5k to build.. :)
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Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 06:53:48 PM
haha. and to me it cost around 12k :D
where did you place the battery?


Title: Re: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 31, 2013, 07:04:20 PM
I fitted a 450size heli landing gear.. and fixed under.. :)

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Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 07:32:13 PM
okay bhaiya. :) great idea.


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 31, 2013, 07:46:29 PM
See i suggested you buy the x800 in the beginning itself, its a good frame according to reviews {:)}. And for CF it is quite cheap.


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on May 31, 2013, 08:04:49 PM
Ya, you win ;)
But I agree with arun bhaiya that the landing gear is bad. looks like cheap 14$ one available on ebay


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 31, 2013, 08:28:39 PM
Well then you will have to take some landing gear building lessons then ;D
http://oddcopter.com/2011/12/13/inexpensive-quadcopter-landing-gear/ - its for a quad but it will work, just use 7075(Very hard only machinable) grade aluminum if you can find it or T6061 grade(Quite hard but bendable by hand at high applied force, bout half your body weight to bend it(25-35 kg).


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on May 31, 2013, 08:35:58 PM
Even arun sirs idea is great and as i see you wont be using DSLR and stuff so way to go arun sir :hatsoff:


Title: Re: Which of these is a better frame?
Post by: arun.sreelakam on May 31, 2013, 09:39:56 PM
What about this? with a gimbal.?
:)
http://www.goodluckbuy.com/hy-800-fpv-fiber-glass-800mm-wheelbase-hexacopter-frame-set-hy-120-ptz-kit.html

But goodluckbuy :(:(:(


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on June 01, 2013, 06:50:34 AM
Bit costly.. and ya cant trust GLB. :(
And also its fiber glass which makes it heavy (1300grams approx)


Title: Re: Which of these is a better frame?
Post by: RCNeil21 on June 01, 2013, 09:25:47 AM
Hey how bout these quite cheap(Same type gear different sites) -
http://www.goodluckbuy.com/quadcopter-hexacopter-diy-universal-190mm-tall-landing-skid-gear-stand-kit-anti-vibration-for-ptz-.html

http://www.ebay.com/itm/Universal-Tall-Landing-Skid-Gear-Stand-Kit-Multi-Quad-copter-Hexacopter-PTZ-FPV-/261093382576

http://www.goodluckbuy.com/quadcopter-hexacopter-aerial-photography-diy-tall-landing-stand-gear.html - different

http://www.goodluckbuy.com/quadcopter-hexacopter-diy-universal-200mm-tall-landing-skid-gear-stand-kit-blue.html - different

http://www.goodluckbuy.com/3k-carbon-fiber-190-fpv-multifunction-high-landing-gear-for-f450-550-aerial-photography-blue.html - same type as first but a bit better


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on June 01, 2013, 10:01:22 AM
http://www.goodluckbuy.com/quadcopter-hexacopter-aerial-photography-diy-tall-landing-stand-gear.html
This one is best one but outta stock :(


Title: Re: Which of these is a better frame?
Post by: Rahulvyas on July 11, 2013, 08:34:39 PM
Finally ordered tarot 690 carbon fiber one 230$.