QuadFusion MGN12 PrecisionPiezo Andromeda Mount

Last crawled date: 4 years, 3 months ago

This was a remix of my previous MGN12 Quadfusion mount. I've swapped the BLTouch probe for a Piezo probe. When the print nozzle touches the bed the piezo is triggered. You need to add a third stand off to the QuadFusion, but the screw hole is already there.
When the nozzle touches the bed, the third standoff pushes the piezo. Note I originally included a screw between the andromeda piezo and the standoff, I later removed this as just the fact the standoff pushes the piezo was sufficient to trigger.
BOM:
https://www.precisionpiezo.co.uk/product-page/universal-piezo-z-probe-pcb-v2-x-for-1-2-3-or-more-piezoshttps://www.precisionpiezo.co.uk/product-page/andromeda
Firmware Config Changes (duet Maestro)
Config.g
M558 P1 I0 H10 R0.4 F1200 T2500; Piezo Settings set Z probe type/mode 1
G31 X0 Y0 Z-0.10 P800; Piezo Settings Set Z probe trigger value, offset and trigger height
Be careful setting trigger point, as with any z probe configuration you can damage your print bed.