Pausing and resuming to do a manual bit change?

WillC1991

Hello, thanks everyone who contributes here, its made my life infinitely more simple setting my my cnc router!

I've just got my machine running with the Duet 3 WiFi and am now getting to grips with the DWC. So far I've got everything calibrated, have installed homing switches and got them running correctly.

One thing I'd like to be able to do is pause and retract, manually swap out an end mill and re-home z then continue from the same point. This is a useful thing to be able to do when cutting fretboards where it can be quite easy to break one of the tiny end mills. It was simple to do with my old Planet CNC board, but I can't quite get my head around the best way to achieve this with the duet.

Thanks for your help!

chrishamm

@WillC1991 Two ideas:

Use M226 in your G-code to pause the file at a given position, then swap the mill, and resume, or
Set up different tools in config.g, use a blocking M291 dialog in tpostN.g, and use T0/T1/T2 etc. in your G-code file. See https://docs.duet3d.com/en/User_manual/Tuning/Tool_changing and https://docs.duet3d.com/User_manual/Reference/Gcodes#m291-display-message-and-optionally-wait-for-response