Comments

• James Lummel October 10, 2015 at 10:33am

  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!
• K V 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.
• Darius Jack 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.
• K V 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.
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  estebanflyer 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:
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  Khoa Vu September 26, 2015 at 4:04pm

  @ Ken, haaha I didn't see Jame's reply before I wrote on your wall. 
• Ken Costigan September 25, 2015 at 6:26pm

  Thanks for the feedback James, I really appreciate it.
• James Lummel 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.
• Ken Costigan 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.

  • Parts list
  • Flight log

  

  

  Hexcopter Build

  Build Sheet Item,Quanity,Unit Weight (g),Total Weight (g),Notes H550 V3 Glass Fiber Hexcopter Frame 550mm - Integrated PCB Version,1.00,435.00,435.0…
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  Clifford Sumner September 18, 2015 at 6:51am

  Arducopter stuff might be the coolest stuff EVER!

  A comment by Clifford Conrad Sumner