Quote Originally Posted by Kitwn View Post
Understanding how to use the probing control is on my ToDo list.
Z-Axis probing is a complete game changer, I really don't know how I went without that initially. So simple to setup as well; just have a 0V clip on to the tool (I've cheated and run a dirty 0V line to the spindle holder), and a second "Probe" line from the UB1 to a block of aluminium. Setup one line in UCCNC, and you can use JSP (jog safe probing) immediately which is great for X&Y. Measure the block thickness and quickly google a tool height setting macro, and within 10mins you'll have perfect and automated Z height setting. I'm now looking into having a permenant block in one corner and letting it have a bit more automation on those tool changes, but one step at a time.

Quote Originally Posted by Kitwn View Post
The only thing you might add would be a hard-wired interlock switch for the spindle when doing manual tool changes. I have one which interrupts the start wire from the controller so that no accidental button press or software glitch can spoil my Jimmy Page impersonations.
Thats a great idea - I've shyed away from anything contactor/relay like on the power side of the VFD, but theres nothing to stop me putting a relay on the control logic side that would drop it into a safe state. Still not completely foolproof because short of powering down the VFD at every tool change theres always some risk the high quality chinesium in the VFD will go haywire....