I don't have a Tormach, but I do have a Chi-wanese Bridgeport clone I've CNC'd, including a unique power drawbar that uses a stepper motor to tighten and loosen the drawbar, allowing my to swap R8 and TTS tools with almost equal ease. I'm curious if any of the Tormach PDB users ever have problems with the collet not popping free. About once a week, I find I have to remove the collet, and wipe a little grease on the taper, or the tool will not release when the PDB activates.
Regards,
Ray L.