The Amp that runs the spindle is based on the same amp that does the x,y,z, but has different programming and a bigger heat sink for the spindle. the x,y,z amp-0065 can not run the spindle. if your looking for one for the axis ebay has one https://www.ebay.com/itm/Fadal-4020-...MAAOSw9E5bzx3t
Those amps will be hard to find , Glentek does not make them anymore.