I am about to pull the trigger and buy pixhawk, but recent stories about desynced
motors and afro/simonk ESCs just worries me.
I am planning on putting together hexa and octa on pixhawk, and just dont know
which combinations to get.
I would like to hear people already flying
[ol]6-8 motors 400-600KV, 14-15" props 4-6 cells on pixhawk[/ol]
what the actually have so I can be sure not to make a mistake.
SimonK + High Pole Count = Sync messed. Has nothing to do with Pixhawk.
I have TGY 4822-390kV and I can’t get them to run properly with any SimonK ESC. Even not with those Hobbywing/Q-Brain 4-in-1 thingies. Plus the motors are trashy quality. The bell is made from extremely soft metal. I had a flipover on GRASS and I had dents in the bell and when I turned the screws for the prop a little bit to tight, I actually drilled out the thread…
I’m currently waiting for a bunch of RCTimer 5010-14 motors.
From what I have read on RCG, the BLHeli FW works much better with high-pole-count low-kV motors and it seems to be recently also available for ESCs with Atmel CPU. I was thinking of testing that combination at some point.
Edit:
When I compare Ferdinand K.'s results with the TGY 4225-390kV (the time record thread on RCG) with my results with the 4822-390kV, the 4822-390kV are also much less efficient. Using the same props and a build with a similar weight, my setup pulled about 50% more amps with the 4822-390kV than Ferdinand’s with the 16-pole version.