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To put tension on the extruder arm, mount the m4x30 bolt shown above.
It seems short, but it is the correct length. Use 2 normal m4 nuts, 4 large
washers and 3 crinkled washers. When you have it in place screw the 2
bolts up to put very little to no tension on the arm. Very little because
when the filament comes in, the arm will be tensioned. Finetuning comes
later.
Finally guide the cables of the hot-end next the the fan. Use the hole of the
fan and a cable-tie to fix the hot-end cable.
Congratulations you’ve finished the extruder module!
