ArduCopter User Group

Discussion group for ArduCopter users

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Discussion Forum

Pixhawk internal compass interference: is it an issue or not?

Started by DG. Last reply by Randy 1 hour ago. 1 Reply

I'm currently building an Alien 680 Frame and looking around for ideas on mounting the ESC's, FC etc., I noticed several using xHawks and they mount it inside the frame with the power wires…Continue

A worrying failed test ...

Started by Simon Gibson-Poole. Last reply by Simon Gibson-Poole 16 hours ago. 2 Replies

Hi All,Running a little survey last thursday looking for some Giant Hogweed and seemingly all went well with the flights (running a Vulcan Octocopter using Pixhawk with arducopter 3.2.1).  However on…Continue

How to set up Flight Mode?

Started by Lucs. Last reply by joel bessa yesterday. 8 Replies

Hi everyoneI am trying to use my Hitec Eclipse 7 transmitter (in aircraft mode) with the APM 2.5 so that I can set the APM flight modes (e.g.: loiter, alt hold, etc) using the 3-way "flt. mode"…Continue

Motors not spinning at low throttle

Started by Rayleigh. Last reply by Rayleigh on Tuesday. 11 Replies

Hi, guysI am having this problem when building my quadcopter. Three motors don't spin until throttle reaches 16% of full throttle. Only one of them is working fine. But once they are all spinning, it…Continue

Comment Wall


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Comment by Kautilya Vemulapalli on Wednesday

@Darius Jack,

I do find it annoying too since you might not have the last setup you used available on your current test. They might do it if they hear from too many people for them to turn that option off.

Comment by Darius Jack on Wednesday

Can we ask developer of eCalc to disable

random fooling option ?

it will keep changing the options you see at random every time you open eCalc.

Comment by Kautilya Vemulapalli on Wednesday

@estebanflyer, You need to get the paid account to get access to all options. If not, it will keep changing the options you see at random every time you open eCalc.

Comment by estebanflyer on Tuesday

Does anybody know why Ecalc is showing different motor types on different ocassions? I opened four tabs and in each case the RCTimer motor selections showed different numbers:

Comment by Khoa Vu on September 26, 2015 at 4:04pm

@ Ken, haaha I didn't see Jame's reply before I wrote on your wall. 

Comment by Ken Costigan on September 25, 2015 at 6:26pm

Thanks for the feedback James, I really appreciate it.

Comment by James Lummel on September 25, 2015 at 4:17pm

@Ken Costigan are those ESC to motor bullet connectors bare like it looks in the photo, or are they covered some something like clear heatshrink that you just can't see? If there is bare metal then that's what's causing the crashes!!

During operation of the motor there would be enough vibration during flight that the bare metal would momentarily touch, especially during changes in direction at speed. Every time they touch that motor would stop briefly, and if that happened to two or more motors at a time OR any single motor were stopped long enough, down she comes!! Pretty much you are guaranteed a crash flying like that...

Get some heatshrink on all of the bullet connectors going from the ESC to the motors and see if that makes it fly better. It may not be the only problem you have, but it certainly is a show stopper and needs to be fixed before your next flight.

Comment by Ken Costigan on September 25, 2015 at 2:55pm

Howdy all,

I'm on my second rebuild of a hexcopter and I just had my second crash. I'm completely stumped what happened. I've attached the flight log, my list of parts and a picture of what I think is the culprit. 

Any suggestions advice is greatly appreciated.

Comment by Clifford Sumner on September 18, 2015 at 6:51am

Arducopter stuff might be the coolest stuff EVER!

A comment by Clifford Conrad Sumner

Comment by David Pulvermacher on September 11, 2015 at 12:01am

The Flight of the Valkirie. Wagner!


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