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Building Copters with Round Tubes - Stronger, Lighter, Easier to Mount Motors than Square Tubes

Started by Forrest Frantz. Last reply by Cala 7 hours ago. 566 Replies

Round tubes offer the following pros:handle twist better than square tubes.  Thus for the strength, are far lighter.are more readily available (pipes, tubes, arrows, kite frames, golf clubs and…Continue

RTL activated but not sure why

Started by Edgar Scott 9 hours ago. 0 Replies

In one of my auto missions I am getting a RTL activated, reproducible every time and i just don't know why.  I look at the logs but I'm just not verbose enough with them to pin point it.I have flown…Continue

Arducopter 3.2 on APM2.5 -Problem with drone lurching its way between standard waypoints

Started by Colin Henderson. Last reply by Colin Henderson 11 hours ago. 5 Replies

I need some advice. concerning tuning out a problem I have with my 800 hex stalling pulling up then continuing forward between way points during standard (no splines) waypoint missions even in no…Continue

Max window on radio settings help to change

Started by Cala yesterday. 0 Replies

I didn't find much information about this setting, I read instructions that at Low latency default is 33…Continue

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3D Robotics
Comment by Chris Anderson on February 7, 2013 at 4:01pm

Xonby: Use the Power Module with your LiPo. It's the best way to power the board. 

Comment by Xomby on February 7, 2013 at 3:50pm

Hey Chris,

Yes, I see I confused things a bit.   I was just TRYING to do the setup calibration with my Rx battery connected, because it was not working with only USB connected.  I do not plan to have an Rx battery once this thing is flying.   I think I read some post that said possibly the receiver may not have enough consistent power through the Arducopter only.

I'm at the very initial stages of configuration and have not yet connected my LiPo's or anything.   I did get the Power Module with my kit and will be using that.

So, should I try this initial calibration using my LiPo battery?

Hope this helps,


3D Robotics
Comment by Chris Anderson on February 7, 2013 at 1:53pm

Xomby: I'm a little confused by your power setup. What do mean by "Rx battery"? Typically copters don't have that. Also, are you using the APM Power Module? If not the little JP1 jumper that came with APM should be on. 

Comment by Xomby on February 7, 2013 at 1:44pm

Hey Chris and Group,

I am having a similar problem as Thomas Mc Grory.  The only difference is I got the Hexa-B kit, have assembled everything according to the manual.  I am at the "setup" step where I am to calibrate my tx/rx channels.

I have a JR 9303 2.4 radio system and am using a Spektrum 7100 receiver (JR and Spektrum are interchangeable as most know).

When my receiver is connected to the Arducopter, it just doesn't react at all.   I have tried when only connected to the USB power from the computer.   I have also tried with my Rx battery connected directly to my receiver (power from the Arducopter is also connected).    

The receiver light will not come on when connected with EITHER power scenario.

I saw a guy on YouTube that had the same problem, but he says he just changed wires from the 5 way connector wire designed for the Arducopter to Receiver connections.  Oh, I have put tone to the 5 way connector wires mentioned above, everything appears to be solid there.

Any advice?



Comment by Thomas Mc Grory on February 7, 2013 at 8:16am

Hi Chris,

Thanks for your speedy response. I purchased the 3DR ArduCopter Hexa-C Ready-to-Fly. It is all new to us here. Yes we purchased the Spectrum DX7s, it appears to be unbound as it is not showing up like in the attached Connection.bmp.

Need to know how to do this. Has DIY drones done this for me? Maybe I am missing something.




Many Thanks



3D Robotics
Comment by Chris Anderson on February 7, 2013 at 8:04am

Thomas, do you mean you bought it with a Spectrum RC included, and the transmitter and receiver are unbound?

Comment by Thomas Mc Grory on February 7, 2013 at 7:17am


I purchased a 3DR Hexa ready to fly, I can't seem to get the RC binded with the hexacopter, do you know if this has been done for me, is it part of the ready to fly set up by udrones? Anyone any pictures to show me?

Thank You



Comment by Emin Bu on February 2, 2013 at 6:21am

no,hexa with payload of 2,3 or more kg wont stay in air if lose one motor...teorethicly answer is yes,but when u lose motor brain is not capable of reacting so fast...Y6 frame and octa X8 frame could survive one motor loss,octa maybe with two...been there than that with normal one also have trust enough for 9kg,but when u lose motor hexa make salto mortale on the side where is that motor...

Comment by Randy Brazeau on February 1, 2013 at 1:55pm
Wow...that's a good payload. Perhaps flight time is measured in seconds. I have a friend that's thinking about shooting some video. Asking me what he would need, quad, hex or octo. My experience is a GoPro. Perhaps 10 minutes of flight time.
Comment by Mike Boland on February 1, 2013 at 12:47pm

I have a hex that will theoretically lift 9Kg, it's just a question of thrust, and of course, battery consumption.


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