Use a Second probe (e.g. piezo disc) to measure and set G31 ZXXX
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Hi there,
I had an idea:
is it possible to use a second probe to measure the nozzle offset? (e.g. if you are using a BL-Touch and you swapped the nozzles or if you are using a toolchanger with different tools)
My idea was:- the BL-Touch (or any other Z-probe) sets the height=0 above the piezo disc (the disk had to be mounted at the bed directing up to the nozzle)
- the printhead moves the nozzle above the piezo disc and then measures the z-offset and set this to G31 ZXXX
So it would be a lot easier to change nozzles and there wouldn't be this problem with measuring with a piece of paper to set the height etc.
What do you think?
greetings kuhni
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No piezo needed. Bare metal touch plate works great.
See: https://github.com/DanalEstes/TAMV the script ZTATP.py (Z Tool Align Touch Plate). It is designed to set Z offset from tool-to-tool on a tool-changing printer. When run for only one tool, it should still work, producing the offset for that one and only tool.
Runs on a Raspberry Pi (or really, almost anything that runs Python). Requires network connectivity to the Duet based printer, which can be running Duet-RepRap V2 or V3. Explicitly, it does NOT require a D3+Pi configuration.
