Electric draw-bar for milling machine

[tonyfoale]

Neat job on reducing your Bridgeport head height. How are you controlling the spindle speed? I note you are using a different motor.

I use a VFD to control speed, it spins to 6000 rpm. The full conversion process and logic behind it were all explained in an earlier post on this forum.
How to make a 6000rpm Bridgeport.
and this details a bit more about motors and VFDs. https://motochassis.com/FileDump/VFD_filtering.pdf