These directions are too casual about how tight things need to be assembled. I put mine together per the directions, put it into my Prusa I3 v2.5 and while routing the wires, the heater block rotated from the heat sink. I had to dissemble the extruder assembly smf re tighten everything. Guess what? it happened a second time. The second time I tightened everything much tighter.
Saying, “Don’t worry about how tight things are, we will tighten things later” is not adequate.
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