nema 23 Stepper 2 Proxxon MF 70 mount

Remixed from erdinger's http://www.thingiverse.com/thing:151185 Proxxon stepper motor mounts.

I had some nema 23 steppers so, I wanted to hook them up to my Proxxon mf 70 micro mill.

I also remixed the coupler since my motors had a small pin going through the shaft, which I thought would be useful in securing the coupler to the shaft.

I also made a stabilising bracket/mount for what I have as the y-axis (the shorter axis), which is stationary. I noticed the stepper motor mount sagged