Prusa i3 – Build Manual
11. First Power-on and Test
Before powering on the printer for the first time and testing, screw in the X-endstop trigger (M4 20mm bolt) to
the side of the extruder (Fig 11.0a) and make sure the Z-endstop is aligned with the trigger and the trigger bolt
is protruding 7-8mm (Fig 11.0b).
Apply a small amount of oil to the X/Y and Z-axis smooth rods, also the Z-axis M5 threaded rods, and make
sure the build platform and X-axis carriage assembly move through their range without snagging on anything.
Then connect the two 12v power supply cables to the ramps (11A to the left, nearest D8, 5A to the right).
Fig 11.0a: Fig 11.0b:
Version: 1.3 Page: 47
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