This is a mount to mount an NTM42 series Prop Drive Series motor to a spindle for use on a CNC router. This can be used with an electronic speed control (ESC) and servo tester to produce a powerful spindle for a CNC router.
Ideal upgrade for Chinese CNC routers 3020, 3040, 6090 or DIY machines.
I recommend having it manufactured in Shapeways new 'raw aluminium' if using with outrunner motors (non-liquid cooled) so as to aid in heat transfer to the aluminium body of the spindle and the spindle bracket