The printer is told it has "Homed" in the Z axis by bringing the nozzle down to the plate and pressing the nozzle against the plate. This pushes the extruder idler arm up, and triggers a switch. These steps will confirm the switch is functioning properly.
- Plug in printer and Head to the Local UI. This is accessable from the printer dashboard page.
- Go to the CONTROLS tab and find the "Send a GCode" text box
- Hold the extruder arm DOWN like the photo shown, and while holding down, type and send M119 GCode. Z should read as OPEN.
- Hold the extruder arm UP like in the photo shown, and while holding up, type and send M119 GCode. Z should read as TRIGGERED.
If either one of the situations in 3-4 aren't correct (reading as triggered when opened, reading as open when triggered) please notify the Polar3D support staff.