05 Apr, 2012
Brushless DC Motor – CNC High Speed Spindle
Posted by: Raynerd In: Brushless DC motor Spindle
This build was detailed on mycncuk. The brushless motor has a 8mm shaft which was removed and directly replaced with an Er16 collet chuck with 8mm straight shank. An aluminium bearing block was built and mounted at the front of the outrunner motor support and maintain the spindle alignment.
ER16 chuck with 8mm straight shank
Brushless DC outrunner motor with 8mm shaft
ESC 3phase driver is Sky 100A
Speed controller is a servo tester –
ATX supply using 12v rail.
It spins damn fast and with seemingly enough torque… the proof will be in the pudding!
Warning… sound is stupidly high which is nuts because it is less than half noise of a dremel on full, the camera just captures it for some reason.