Bridgeport Series 1 MDI Conversion

[swarf-boy]

Hi Chaz,

Not sure if this helps you any.....

I chose these in the end. ( the Std SEM motors on mine were 3.2 NM. They worked pretty well too)

￡176.12 50%OFF | 90ST-M04025 220V 1000W AC Servo motor 4N.M. 2500RPM 1KW servomotor Single-Phase ac drive permanent magnet Matched Driver
https://s.click.aliexpress.com/e/b1hpQbat

Physically much smaller than the SEM originals.

Shafts are same OD ad SEM, but a bit shorter, so I will probably have to make some custom timing pulleys with long spigot ( at least for Z axis anyway).

In hindsight, the 1.8KW version has a longer shaft and is still smaller than the SEM motors. ( but I am also mindful of electrical max demand of machine)

Regards

Mark