Direct Drive for A-Axis?

I have a coupler that can connect my 4th Axis stepper motor to the shaft of my chuck. It’s a 1/4″ to 1/2″ spider coupler. I got it at Princes Auto on the cheap today.

Can a typical zylotex or Nema 23 system handle that?

3 Axis Nema 23

self-centering

I am just in from Ogdensburg and I got two 3-Axis-Nema-23 systems.

I also got a small chuck to create a 4th Axis for my CNC mill. It has a 1/2-20 thread on the back so I can add bearings, and belt drive.

I also picked up some really strong magnets.

I’m making some perpetual motion machines and I figured the magnets would come in handy (grin).