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Discussion group for ArduCopter users

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APM 3.1.5 Hex Motor 6 not Starting

Started by Nate Volk. Last reply by Nate Volk 6 hours ago. 3 Replies

So, I'm building a new hex.  Got it all wired up, programmed the esc's, did all the calibration stuff.  Motor 6 won't start on the APM.  Feels like the brake is on.  Connected that motor directly to…Continue

Tags: motor, esc, apm, hexacopter, hex

Optimize your vibration levels with unsuspected technique (thx Forrest Frantz for that)

Started by Hugues. Last reply by Forrest Frantz 7 hours ago. 299 Replies

I finally did the test of hard fixing the APM case to the frame, thus not having two separate masses with vibration dampening materials in between, as before (i.e. : frame/props on one side and APM…Continue

APM 2.6 Gimbal Setup

Started by Samuel Arnold. Last reply by Okan Önal 13 hours ago. 17 Replies

Hi. I have a question on how to install a Servo 2 axis gimbal with my APM 2.6 and am a bit confused about how and if I have to cut power lines from the servos? or get an external UBEC?! or can I bind…Continue

Avoid obstacles by four LV-EZ0 sonars

Started by Chi Yi Wang. Last reply by Johann van de Venter 18 hours ago. 1 Reply

My professor give me a project. I need to make a quadcopter can independent avoid obstacles.I choose four LV-EZ0 sonars mount to front,back,left and right(like the photo).Four sonars value has…Continue

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Comment by Andrew McKinstry on December 18, 2012 at 9:40am

p props in correct location now.. clearance still an issue

Comment by Andrew McKinstry on December 17, 2012 at 7:33pm
Hmm. 3DR sold me the unit with motors installed and also ordered the large prop from them@ same time..

JDrones
Comment by Jani Hirvinen on December 17, 2012 at 7:00pm

Andrew. Looks like you have a big problem. I am not sure if 3DR frames are designed for big motors and big propellers but way how they are in your hexa is bad and you cannot use it like that. all jDrones frames are fully tested with 12" propellers. I would suggest to use only 10" props on that your current hexa.

Comment by Andrew McKinstry on December 17, 2012 at 10:10am

Hello.. Shiny new hexa with all the toys about to leave bench (I hope).. however prop clearance issue! Or am I missing something.. 880 motors 11x4.7 props

thanks

Comment by avionics on December 9, 2012 at 9:45am

2012-12-09%2020-01-10.tlog

 

Hi Guys

I was in the middle of tuning for my Loiter and suddenly the quad started coming down out of control and crashed. Luckily no damage but it went out of control. this is the log i appreciate if any one can help and see what went wrong. thanks

 

2012-12-09%2020-01-10.tlog

 

Comment by avionics on December 7, 2012 at 8:16am

OK I got the Loiter going almost good. I had problem with my CH_6 knob on TX. fed the info directly from the ground station. all good for now. Thanks.

 

Comment by avionics on December 6, 2012 at 10:26pm

@Randy

Randy thank you for the response. Frankly I dont really know what to look for in the log. any idea what i should expect in the log? sorry I have never done this before.

Comment by Randy Brazeau on December 6, 2012 at 11:38am

@Avionics

Have you reviewed the logs? That would be a good starting point to see what is happening.

Randy

Comment by avionics on December 6, 2012 at 11:04am
I have a H.A.L quad by hobby king with 1200kv motors and freshly assembled. It flies beautiful in stablise and alt Hold and when i try to loiter it doesnt hold its position. The GPS both LEDs are locked and steady before i start. It drifts and loses altitute very slowly. Tried playing with PIDs but no luck. I ran out of ideas appreciate if anyone can throw some light. Does the WP loiter config PIDs have any effect whilst on loiter or it is only for when on Auto mode? Thanks for the help in advance.
Comment by Chris Gough on November 29, 2012 at 1:36am

@Shayam, if you want to experiment with quaternions, DCM, euler angles, etc. you might want to check out the various pluggable AHRS subsystems in paparazzi.

http://paparazzi.enac.fr/wiki/Subsystem/ahrs

 
 
 

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