RC India

   

Hi guys,
         


           I am Yogesh from chennai , well im building a quadcopter which is controlled by KKcopter board !
1. i want to know whether my ESC/ motor  combination is right ? will this combination burn my motor or esc ?
2 .And i want to know what battery of which discharge to use ?
3. And also want to know the approx weight limit of the quadcopter


1. MY MOTOR/ESC COMBINATION
    EMAX CF2822 + EMAX BUDGET 18A ESC

2.MY QUADCOPTER COMPOSITION
   1. Plastic PVC pipes *4 ( 1 feet each pipe )
   2.plastic 4-way pipe connector
   3.emax cf2822 motor *4
   4.budget 18A ESC *4
   5.slowfly props 10*4.7 (4)
   6. controller board
   7.controller plastic box
   
PRESENT MODEL WEIGHT = 636grams

Use a 3S LiPo and don't desire to have long flight times. Maybe a 2200mAh 20C will do.
There's nothing like a weight limit, people have made well beyond 2.5kg but for your configuration, it's better to keep below 800g.
If you haven't already purchased the motors, then check for alternatives of lower kv (700~1000kv)

 1.  well sir i have already purchased the motors ,esc, and props .
and i have orderd for the radios and others materials. i am afraid that after adding the Rx ,battery and the prop adaptors the weight might exceed 800grams .
                           And even im planning to mount wireless videocamera , so according to the my calculation it wouls come maximum upto 1000grams , will that be okay ?

  2. the motor shaft diameter is 3mm , will a 3.17mm prop adapter do ?
  3.wat would be the approx flight time ?

First of all, don't address me 'sir'. :)

If you've already purchased the motors, then it should be OK. I can't say much about how much your quad should weigh, but keep it as low as possible. Aim at 900g.

And use the prop adapter of the EXACT diameter. Because the forces acting at that point are so high that even fractions of an mm matter there.
You can go for a prop SAVER that's availble in 3mm. http://thehobbyshop.in/index.php?main_page=product_info&cPath=10&products_id=36
Also, do buy extra O-bands. My O-bands get very brittle (maybe due to the heat when I tested under the 40deg sun?) and break during flight. Luckily my dt700 motor has a threaded shaft, so I had time to react. But do buy extra O-bands.

Flight time is given by Amp-rating of battery divided by total draw.
Your motors might draw soemthing aroud 40-50A, in all. So your flight time is 2.2/40 ~ 3.5 min.
I'm confused about it though, it depends on till what voltage you want to drain your LiPo. So your eff. flight time will be more than 3.5min.

Vineet

 

  okay oaky i get it ! :)
   thankyou so much for the information vineeth:) will approach you if i face anymore doubts ,if you don mind :)
 
regards , yogesh

I'd be glad to help you. Post in the same thread so that all others can see and answer as well. :)

   
    1.can you suggest me some links for the batteries and chargers , the cheap ones most preferable.
   2.and i checked few more links were i found 3300mah with 20C and weighs upto 235grams ..will that be good enough ?
   3.since i made the frames with PVC pipes .can you suggest me some ideas with the landing gear ?

Where do you want to buy from? Hobbyking/other foreign stores or LHSes?

You can buy LiPos from www.hobbysea.com. (based in New Delhi) It's better to buy 2200mAh. If your quad is flying well, then try to upgrade the LiPo.
There're many chargers available today and I use this: http://thehobbyshop.in/index.php?main_page=product_info&cPath=7&products_id=11
But I don't recommend it for you. Buy a better one and it will last you more time. (like their accucel 50W charger :) )

And as far as the build is concerned, please DO NOT ask me. I am very bad at craftmanship and like to make garbage. ;D
Reconsider your idea because PVC is not that strong (as strong as aluminium/Carbon fibre).

Best of luck, and what board do you want to use?

Vineet

EDIT: Okay, so you're using kk. I'm not a kk guy. Dharmik, satyagupta and many more can help you better.

well vineeth regarding the fame
 1.i ahve used some think plastic pipes ..they are strong ,but not as much as aluminium ! and its a bit cheaper
 2.im using the kkmulticopter board (atmega128) i have no idea about the version
 3.a small doubt ! since im building a quad ..my frame isnt exactly a plus ! the angle between the two pipes varies by 2-3 degrees (approx) .will this be a matter of worry ?
 4.im very much worried about the esc part ,u sure na that i wouldnt burn ? i spent alot of money on that

Yogesh bro can you post the links of motor and esc?
If you are building custom frame you have to be very precise. As you are using round pvc pipes, you will have to find the way to mount all motors exactly vertical(90 degree). And if possible try to bring the angle of two arms close to 90 degree. Aluminium beams are good because you can easily mount motors and you can drill and cut easily at home.

Im not able to use the computer now ! Can you Google it ? Its emax cf2822 and emax budget 18a esc

Dharmik bhai . .I didn't mean that ! I can very well rotate the pipe  in order to bring the motor to 90deg ! What I ment was the opp arms are not 90deg to each mther . Its doesn't look like an exact( +)

Yogesh bro that's really nice. Motor and esc combo looks perfect. Here is build of pvc quad. You might get some idea.
http://www.rcgroups.com/forums/showpost.php?p=21926482&postcount=119
I wish you all the best for your quad. If possible please post your build log, we also want to learn from you. Let us know if you need any help.

Dharmik :) thank you so much for the link .can u just wait for some more time ill upload my quad pics
 cf2822 link-http://www.rcdhamaka.com/index.php?main_page=product_info&cPath=100_93&products_id=391
 budjet 18Aesc linkhttp://www.rcdhamaka.com/index.php?main_page=product_info&cPath=100_95&products_id=747

Mounting a motor on the circular PVCs could be tricky. But all the best, go ahead. :)

Vineet

(http://)

i have posted the photos

this is along with the camera

 hey guys :)
       
           another help needed .
  1 .well im using a KKmulticopter flight controller board 4ch  V2.1(not sure) .but the basic one, And i also have an 6ch Tx and Rx
  2. how do i connect the 6ch Rx to the 4ch controller board ?

Hope you are using male-male wires. (http://thehobbyshop.in/index.php?main_page=product_info&cPath=9&products_id=69)
Connection to the receiver (img)

(http://www.hobbyking.com/hobbyking/store/uploads/305954788X570126X10.jpg)
courtesy: hobbyking

Thr is USUALLY Ch3, Yaw is Ch4, roll is Ch1 and pitch is Ch2. (MODE 2 tx)
Assuming you're making a quad +,

connect front motor to the M1, left to M2, rear to M4 and right to M3. these M1, M2..M4 are found on the right side of the board.
Notice the correct polarity. (outer pin is GND(black/brown), inner is SGNL(white/orange)
refer to http://www.hobbyking.com/hobbyking/store/uploads/181205144X7478X19.pdf

always try searching on google before asking. :)

Vineet

AWESOME :) this is what i wanted
  thanks vineet :)

Any suggestions for the landing gear ?? ???

do u have to update the controller board .before u start using it ??

vineet i have some questions for you ! :)

     1.why cant you just directly connect the 4 pins in the controller board to the 4 ports in the Rx ?
     2.the link which u sent me, showed the specifications of the controller board along with the firmware upgrade right ?! my question is that , do you have to upgrade the controller board to with some firmware before use ? is it not a plug and play board ???

HK board comes with plus config preinstalled. If you want x config or updated firmware you can flash your board using USBASP cable and lazyzero flash tool.

Hi Yogesh.

Sorry but I couldn't understand what you meant by:

I wonder if this board including most other MultiWii boards can be called a "Plug-n-Play" board. I think to get a plu-n-play board, you need to shell out more bucks. Probably a paris v3.0 or the DJI FCs qualify as true plug-n-play boards.

 vineet
       
         what i ment was that , u need 4 male to male connectors to connect the Controllers (thr,ele,rudd,ali)  board and Rx !
         how come only 2 male-male connectors are used and why ???

Yogesh bro let me clear few things. male2male lead has 3 wires.
the lightest color wire is signal wire. Generally darkest color is negative. On hk board pot side signal wire comes first.
Rx gets 5V from the board and board gets 5V from the ESC's BEC. For safety you have to disconnect(don't cut just remove metal pin from the plastic case) red wires from 3 ESCs and keep 1 ESC as it is. Now connect escs to the board. You can do same thing with rx.

Looks good yogesh all the best with the build, I have also build one, it flew nicely but after a hard landing it refuses to fly :banghead: :banghead: :banghead:

Dharmik bhai

        1. the controller board has 4 slots (ele,thr,ali,rud) agree?
        2. the Rx has 7 slots , agree?
         
        3.  (with reference to vineet's photo) why cant you connect the 4 slots of the controller to the 4 slots of the Rx directly ?
        4. in vineet's picture the connections are made in some order ! why ? can you please explain it to me !
       

Sathyagupta bhai , thank you very much :)
please leave your reviews and suggestions

Its personal preference buddy, you can connect 4 male to male cables from board to Rx or you can connect 2 (as shown by vineet) and thats how most of the quad builders like to do (including me) you see you get the job done with just 2 male to male cables :giggles:


Will drop comments if i have any relevent information, P.S. there is no 'H' in my name its 'satyagupta' thats my first and last name and i would prefer been called with that no addition/dropping of any alphabets.

For goodness's sake that's not my picture. Just took it from hobbyking's users' files.

Vineet sorry ! :-) satyagupta - sorry man ! Thank you guys :-)

You need not be sorry for that, I was only trying to indirectly say I have not tried an HK v2.1 FC before, and that all I did was googled and gave the info to you. :)

Waiting to see your quad flying.
Best of luck,
Vineet

Thankyu so much vineet , ill be ordering the radios and battery today !
6ch Tx Rx , and 2300mah 20C or 2600mah 20C battery ,3mm prop adapter (colet type), male-male connectors ,battery charge and Battery, Tx ac/dc adapter!

Yogesh bro i will post my setup pic when i get back to my pc.

Dharmik
   
           yes please ! it will be really kind of you if you post it !

Hey Guys ,
             
               Another question ,
1. how much does an quadcopter kit costs ???
2. how much does it roughly cost for you people to build a simple quad ?
3.how much does it cost to buil an effective quad (a nice powerful one) ?
4.at what hight can a quadcopter fly (approx) ?
5.how far can a 2.4GHz Tx Rx can controll a quadcopter ? ( length and distance ) !

Guys help needed
   
        can any one tell me how to mount the propeller (10*4.7) on 3mm collet prop adaptor ?
        1. step by step instructions ? or step by step instructions with photos ?
        2. or some video ?
        guys need your help , vineet ?? dharmik ?? satyagupta ?? anyone ?? need help !

hold on making the video


SUbbu

thankyu subbu ...for info ..im using a 3mm collet prop adaptor and i wnna attach it to (10*4.5SF prop) :)
after that i wanna connect it to CF 2822 motor

got it yogesh

i am posting the tutorial for 3mm collet type adapter and a 8*4SF prop but the size does not matter

sorry i could not take video with one hand so i am making a step by step photo guide

1 - you need to bore the prop hole to increase its diameter (it can be easily done using one arm of a scissor or buy a prop boring tool)
2 - the required items
3 - 3mm shaft motor mounted using clamps and balsa strips
4 - first threaded part is inserted into the 3mm shaft

Subbu

5 - insert the base (i dont really know the exact name of this)
6 - insert the washer/baseplate (dont know its name either)
7 - insert the prop
8 - insert the spinner


Subbu

9 - hand screw the prop spinner
10 - use pliers to further tighten (you can also use a pin or small screw driver to go through the two holes in the spinner and rotate to tighten)

I did not intend this to be a 10 step guide to mounting the prop adapter and prop but as it happens i just did  ;D

hope this helped

Subbu

EDIT - if you still face any problems please ask i shall post a video

thankyou subbu :) thankyu so much for giving me step by step instructions for me at this late night :D
 and subbu i saw your quad parts , they are really awesome :) ...how much did you get them for ?? and what is the total thrust given by your motor ??

no problem yogesh i usually go to work on my planes during these hours

hi my each motor produces about 700gms of thrust they are http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=21478 (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=21478)

the total cost for all the electronics,accessories,props,controller board(before i was using V3 multi rotor board but now i bought kk2 lcd multi rotor board) is 141.5$ but i got about 15 $ discount as store credit so about 7000rs without ems shipping.


Subbu

So you mean to say is you got everything for just 7000 including the board ?

yes the board, esc, motor, prop, prop adapter, kk2 lcd FC board,male to male leads from FC board to rx, 4000mah 3s turnigy lipo battery and a bullet and deans connectors for about 7500 without shipping from hobbyking.

above price doesn't include the cost of the frame

Subbu

Wat abt the radios ? You didn't get them ?

oh sorry i already own an Airtronics RDS8000 2.4ghz 8ch radio so i did not include that cost


Subbu

Oh okay fine ! Because mine came upto 14000 for now ! I was wondering how did you get there stuff so cheap! And where did you get those male to male connectors ?

male to male connectors http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=23036 (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=23036)

and this is how to connect the FC board to the RX

check the attached pic then check this

(http://i635.photobucket.com/albums/uu71/Pikle6/Untitled-2.png)

Subbu

if not clarified will post new pictures tomorrow

hello
         
                anyone using Emax cf2822 with 10*4.7 slow fly propellers for quads ?

I built my first quad with the 2822 motors. Along with the v2.1 control board flashed to v4.7. Used the cheap hk ss 18amp esc. Home made frame. And the starter 2.4g tx/rx from HK. Total weight was about 1.1kg including a 3s2200 lipo.

Used the 1045 and 1047 propellors. Was too much thrust. Replaced with 0845 propellors.

I also have a quad with CF2822 motors, HK 18amp ESCs and I am using 7x4 props.  Seems to work well. Bigger props may be too much for these motors.

Thank you Mr.Anwar  :) it was  so kind of you ! Hope  my quad files

I am facing a problem with my first quad which has similar setup. The motors are emax 2822 1200kv and one of them spools up late and stops intermittently :( especially when control sticks are moved. Couldnt lift of due to this and searching for a possible solution. The said motor seems to be bit more tight compared to the other motors. Since I couldn't find any other reason, I am just assuming that this may be is due to the HK standard QC and I might be the victim this time. Though the price of this motor is very cheap compared to its specs, waiting another month to finish my home made quad is.... :(

Have you tried changing the position of the motor?

If you are using the HK atmega board, flashed to v4.7, there is a problem with the signal to the M4 motor. You can find details of it on various forums.

You may want to use the trim to get the motor to spool up along with the others. I also tried oiling the bearings on my 2822. Seemed to help, but did not have the equipment to measure the changes.

With my setup, I found it hard to get the quad to hover and land smoothly. Was easier to fly it and crash land it. But then, I am a beginner to RC and this was my first build.

Thanks subhashr, my setup is stock firmware right now and later will change to X config. I got a tip from Pikle6 just now about stick centering which I missed. Will have to try it out and see if it helps.

That is a lesson in dealing with these ultra cheap stuff. We have to plan for the eventuality that one of the items will go bad, so I ordered 5 sets of motors and ESCs from the get go.  An extra pair is so much helpful (along with extra props) when it comes to surprises like this, and you can always use them for other (non-quad) builds.

My HK board based quad including videos are here :

http://www.rcindia.org/self-designed-diy-and-college-projects/quadrotor-build-thread/msg68732/#msg68732  (a fews posts starting there).

The CF2822 with 18A SS ESC does work fine in general.  I picked up this parts list because I saw Ashta bhai using them.  So there is definitely a history of this combination being successful, at an extremely low price point.

Anwar bhai, I did order 5 ESCs for the same reason, but unfortunately I gambled with the motor and got hit :D Anyway, lesson learnt  :banghead:

And using a simple cdrom case with couple of screws was pretty ingenious !!!  :hatsoff:

I learnt this a hard way... I had bought just 4 ESCs and exactly 4 motors. After a crash, the crappy dt700 motor became very tight = more friction = burnt ESC.
So replaced the ESC but didn't buy the motor. I undid all the grub screws of the motor and fitted back again, but the motor was still tight.
So had to buy another motor. A total delay of ~ 1 month (thanks to HK and HKPost)
I now want to have a spare for every piece, and would NEVER want to buy dt700 or dt750 or any other bell-type motors for quads. I especially hate it's grub screw-type mount and weak build. NTM prop drive 28XX series appear to be better at a small extra cost...

Vineet

hey guys :) 
             
                    finally im done with my PVC frame quad .... and also have upgraded it to aluminium frame  ;)
PVC FRAME

That looks nice yogesh! what is the AUW?

weighs approx about 850 to 900gms

MY ALUMINIUM FRAME

Is it with or with out battery? And the aluminium version looks fantastic too!

 salim its with the electronics :) .. have some gyro setting left :)

correction sam*

Wow!  I am just a novice in quads but if its with the battery then its a very nice AUW I guess :). Am also in the same weight range I think with my corrocopter. Awaiting video ;)

Nice build Yogesh bro. Waiting for videos. Just one suggestion, mount the props near to motor bell.

dharmik bhai ,
                   
                    thats the maximum it can sit on the shaft ....:(  need some help with the gyro settings

Hi Yogesh,

Have you completed your Quadcopter. What is the current status? Just curious. Your thread gave me a good insight.

Sir,
You are responding to a 6 year old post!

Edit
Saw that this is your first post.
Welcome to the forum!
Regards