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Severe twitching in Loiter

Started by Randy Bachtell. Last reply by AKcopter yesterday. 1 Reply

I have an unstable Loiter condition on my Pixhawk 3.2.1 550 quad, all other modes are very stable and predicable.  I am using my Iris+ as a benchmark as both are configured about the same.  I am…Continue

APM 2.8 Flight Controller wont connect to Vista???

Started by Kevin McLendon on Sunday. 0 Replies

Windows always asks to install new hardware, Won't connect to open pilot, just times out, anyone else had this prolem?Continue

drop height

Started by Martin. Last reply by Randy on Sunday. 5 Replies

Hi,I need some help!When i put my quad in a circle of radius 0, they turn around , but fall suddenly 4 meters approx, stop turn, recovery height and continue turn.There are any parameter to correct…Continue

A worrying failed test ...

Started by Simon Gibson-Poole. Last reply by willie mcphee on Saturday. 5 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

Comment Wall


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Comment by James Lummel on Saturday

If you are having problems with  v3.2.1 on APM 2.x hardware and your multirotor is unstable and won't sit still but worked fine with v3.1.5 or v3.2, try changing the parameter INS_MPU6K_FILTER to 20 or 42 rather than the default of 0. The value of 20 is preferred for an APM 2.x flight controller.

As I understand it, the value of 0 used to default to 20 in earlier firmware but is now an absolute value. Changing this param cured the problem I had with 3.2.1 on a Cheerson CX-20 and it now flies smoothly with the final firmware released for APM 2.x. I'm really liking the PosHold mode!

Comment by Kautilya Vemulapalli on September 30, 2015 at 5:00am

@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 September 30, 2015 at 4:57am

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 September 29, 2015 at 9:23pm

@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 September 29, 2015 at 3:48pm

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


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