4. Upgrading the Nextruder
44 Original Prusa MK4/MK3.9 to MK4S/MK3.9S upgrade
STEP 6 Assembling the Idler-swivel: parts preparation
For the following steps, please prepare:
Idler-swivel (2x) new part
Idler-nut (1x) new part
M3x30 screw (2x) you removed earlier
M3x20rT screw (2x) you removed earlier
M3nN nut (2x) new ones
Spring 15x5 (2x) you removed earlier
Spacer 6x3.1x8 (1x) you removed earlier
STEP 7 Assembling the Idler-swivel
Push the M3x20rT screw all the way through one of the idler-swivel.
Slide the spacer onto the screw.
Place the second idler-swivel from the opposite side of the screw.
From the other side, attach the M3nN nut to the screw. Hold the nut using the
universal wrench and tighten the screw. Tighten just lightly! The spacer must
rotate freely.
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