Monoprice Maker Select Plus IIIP User Manual page 20

18. Wait for the printer to warm up and initialize. When it is ready, the Main menu will
display on the LCD screen.
19. Select the Tools button on the Main menu, then press the Home All button. Turn the
printer off again.
20. Now that the printer is off you can manually move the extruder around the build
platform. Because most printing is done near the center of the platform, you should
check the nozzle height at points about 2 inches from each corner.
Use a single sheet of ordinary printer paper as a guide. The nozzle is at the correct
height when you can just slide a single sheet of paper between the build platform
and the nozzle. There should be some resistance to free movement, but moving the
extruder should not cause the paper to be dragged with the extruder.
To raise the build platform, loosen the nuts under the build platform. To lower the
build platform, tighten the nuts under the build platform. Note that you may need
to slightly squeeze the platform to more easily tighten the nuts.
Continue adjusting the platform height until it is at the correct height at all points
on the platform.
21. Switch the printer on and wait for it to initialize. Press the Tools button, then press
the Move button. Press the + button for the Z Axis entry several times to raise the
extruder until it is at least an inch above the build platform.
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