Hi m_c,

Judging by the rest of the manual, that is a good point. It could be wrong, though, I'm not knowledgeable enough to know either way. lol.

The 4 bar is apparently for the Cone cleaning, I think I've read somewhere that this has to be on at all times during operation to prevent dust/debris from entering the spindle...
At the moment, I think I'm going to try and figure out how to just use the Push Button for Manual Tool changes.

Once wired in, is there anything in UCCNC that I need to configure for the push-button tool release to work?

Phil