Does Snapmaker and Luban allow for CNC tool change?

[brent113]

Like this?

External Z Probe Sensor

This is the circuit I’m using now - a touch pad with and alligator clip you clip onto the tool. I’ll worry about getting it 100% hands off if I can get the basic concept working - for now I’m okay with having to manually clip an alligator onto the tool before performing the measurement. Your idea of mounting this off the left side is exactly what I was thinking - essentially being able to hit a button, the tool zooms over, slowly lowers, measures the height, and gets a new calibrated Z offset -…

Hopefully soon I’ll have one that works for auto z height setting using G38

Also, @xchrisd, I think it’s not so hard. Just need to recompile with EMERGENCY_PARSER, and even without touch screen support at least the break and continue g code will function, allowing M0 to be used for a tool change, followed by M108. Scheduled pause at specific layer in print job - #10 by brent113