(footage credits: Mike Menci)

Pick&Place multi-nozzle machines share one physical actuator to create the two nozzles’ Z axis in a counterweight, seesaw or rocker configuration (when one is moving up, the other is moving down).

There was an old, Smoothieware version, patched by OpenPNP’s Jason von Nieda that added that capability, but because you need new, bugfixed firmware for the modern features of OpenPNP, you can no longer use this old version.

Therefore, I fixed it for the current (2019-08-25) Smoothieware version (the old fix didn’t work, because the underlying code has completely changed):

• See the Pull Request: Feature/Endstop Release Before Homing #1423
• Download my firmware build: firmware_edge_endstop_release.bin – OUTDATED, see new build here.
• See also the discussion in the OpenPNP group.