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FAQ
Q: Sometimes the extruded filament looks ugly or has a varying diameter:
A: Not homogenous extruded filament can be caused by the following:
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Check the filament quality. Bad quality filament can have a varying diameter from 1.95 to 1.4mm instead of a continuous 1.75mm.
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There is not enough tension on the extruder arm. Increase the tension on the extruder arm a little. Be careful by not to put too much
tension, because the extruder motor can have a hard time turning
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Filament gets stuck somewhere. Check if the feed of filament to the extruder is going without any obstructions.
Q: There is a lot of backlash in the axis-movement:
A: Check the following:
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The belt is tensioned properly
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The set-screw on the motor-pulley is tightened enough