Prusa Research Original Prusa SL1, Manual

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2. Base & Tower
22 Original Prusa SL1 kit assembly
STEP 17 The tilt motor assembly
Check the tilt motor holder for mounting points, which will be used for the optical
sensor.
Place the optical sensor on the holder and secure it using two M3x5 screws.
Don't
tighten the screws, we need to adjust the position of the sensor.
Place the holder on the tilt motor. See the picture for the correct orientation. Use
the motor cable as a guide.
Connect the holder with the tilt motor using four M3x10 screws.
STEP 18 The tilt motor assembly
Rotate the flat part of the shaft as in the picture.
Slide the connecting rod on the motor shaft and align it with the tip of the shaft.
Make sure the orientation is like in the picture.
IMPORTANT: Align the connecting rod with the protrusion on the holder. Both
surfaces should be flush. This will ensure the rod will be vertical.
Tighten the grub screw against the flat part of the shaft.