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Title: Motors not spinning at the same speed Post by: Darshan for multirotors on May 24, 2015, 07:57:43 AM Hello,
I need some help regarding spinning of motors of my 250 quad The top right motor spins first The bottom right motor spins second The bottom left motor spins third and Finally the 4th spins My connections are the following to my kk 5.5 blackboard Top left motor >> M1 Bottom left motor >> M4 Bottom right motor >>M3 Top right motor >>M2 Note The connections are taken with the board facing the front Top left motor>>CW Top right motor >> CCW Bottom left motor >>CCW Bottom right motor >> CW The board is flashed with x copter firmware 2.9 by minsoo kin The motors are not spinning at the same speeds which causes the quad to back flip(broke a prop in this process) PLEASE EXPERTS HELP ME OUT WITH THIS Title: Re: Motors not spinning at the same speed Post by: saurabhhsrivastavaa on May 24, 2015, 09:51:45 AM Which esc? Have you performed the esc calibration?
Title: Re: Motors not spinning at the same speed Post by: Darshan for multirotors on May 24, 2015, 09:53:00 AM 12a emax Simon Series esc
Yes I have calibrated them Title: Re: Motors not spinning at the same speed Post by: satyagupta on May 24, 2015, 09:55:18 AM ESC Calibration is required
first individually then together via KK 5.5 Title: Re: Motors not spinning at the same speed Post by: Darshan for multirotors on May 24, 2015, 09:56:55 AM I have done it separately one by one but how to do it.using the fc?
Title: Re: Motors not spinning at the same speed Post by: saurabhhsrivastavaa on May 24, 2015, 10:11:14 AM I am not sure how to do it through the FC. Not very versed with KK5.5 Maybe others can help.
But surely this looks more like sync issue (calibration). Title: Re: Motors not spinning at the same speed Post by: Darshan for multirotors on May 24, 2015, 10:39:35 AM I am sure there is no fault in the fc as it compensates for the tilts and turn that I make by holding it in my hand..
I have throttle calibrated the escs but still no sign of it flying smoothly without flipping Title: Re: Post by: akhilzid on May 24, 2015, 03:06:26 PM May be FC to ESC connections or motor directions changed.
Title: Re: Post by: cyberhack on May 24, 2015, 03:20:48 PM Post pictures of ur quad also pic showing ur connection and a video of the prb without props will be good
Title: Re: Motors not spinning at the same speed Post by: Darshan for multirotors on May 25, 2015, 03:14:51 PM No akhilzid sir everything is right and I have cross checked it almost ten times
Title: Re: Motors not spinning at the same speed Post by: Darshan for multirotors on May 25, 2015, 03:18:10 PM I tried it again and now the left motors are starting first just followed by the right ones
The left part lifted but the right one didn't that's cause I didn't let it to as it would topple again Right motors have become slow and are not that speedy as compared to the left ones so the quad will finally do a right flip and would end up on its face Title: Re: Motors not spinning at the same speed Post by: Darshan for multirotors on May 25, 2015, 03:36:54 PM Do you think I need to change one of these?
Title: Re: Motors not spinning at the same speed Post by: Darshan for multirotors on May 25, 2015, 05:13:44 PM Thanks to this guy I was able to solve my problem..
https://m.youtube.com/watch?v=xPX9i0WEmYM |