Help! Racestar Brushless BR2205 Motor issues

A

Ajsuss

New Member
I'm having issues with my quadcopter's motors. I'm using Racestar BR 2205 brushless motors, but when I mount them to the frame and test the motors in Cleanflight, they spin slowly and make a rubbing/grinding like noise (I'll attach a video). But when I unscrew the motor from the frame and test it in my hand they spin perfectly fine. I've checked to make sure that all the screws are not touching the windings, also it's all the motors, not just one. Also to confirm that it isn't the screws I taped the motor down with double-sided sticky tape and the same issue arose. My assumption is that for some reason when the motors can move around they work but when strapped down they don't. Can someone let me know if there is anything I can do?

I've tried soft-mounting with tape, creating stands to screw the motors in on an elevated surface, I even used heat shrink around the screws so that it didn't touch the frame to conduct electricity. I've narrowed the issue down to when the motors are mounted it doesn't seem to matter if they are screwed it. I also tested what would happen if I held it freely but tapped the bottom and it works so it doesn't matter if the bottom is covered as long as it isn't mounted which makes no sense.

Heres my full set up:

Motors: Racestar BR 2205
ESC: Hobbypower 30a Brushless Speed Controller Esc
FC: Cleanflight SP Racing F3 Acro

I'm also using a FS-R6B Rx which has been a pain of its own because I have to use single channels but that's a different issue.

Here's the video:
https://drive.google.com/file/d/1LDj-Sv8kCpmcbpszPyOP3g_GsBbXkiBH/view
 
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Its probably not the motors but the way their being told to operate probably PWM or something like that, I watched a video on you tube about programming them externally. But couldn't figure out how to link it here. Hope this helps.
 
srw101 said:
Its probably not the motors but the way their being told to operate probably PWM or something like that, I watched a video on you tube about programming them externally. But couldn't figure out how to link it here. Hope this helps.
Click to expand...

hey thanks for the reply I ended up realizing that my cheap ESC had some weird Chinese protocol and I needed to set them up I ended up finding a manual for a different ESC that used the same protocol if anyone else has the problem basically you need to change the startup time that the ESCs run at. You gotta look up the manual though if anyone else has the problem if they message I’ll find the manual and link it at some point

thanks again
 
Good news, 3 phase motors need specific timing or they won't work right. I figured the motors were still good based off your description...good job!
 
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