Hello

I have purchased a gimbal from aliexpress http://www.aliexpress.com/item/Hot-Selling-Aluminium-New-Version-3-Axis-Brushless-Aerial-Gimbal-With-Motor-For-Sony-NEX-62/32477630226.html?spm=2114.13010208.99999999.261.JxGOsl and the SimpleBGC 32-bit. The gimbal is fine but one motor has more friction in some angles because the cage is touching the base. I can still turn it by hand but the friction is significantly higher in some points. I also have problems setting the PID values. Can it be that this motor is the problem, because the control assumes that the mechanics are mostly frictionless? It is mounted on the ROLL axis.