“My filament keeps snapping off!”

I hear this a lot. This is almost always the result of too much tension on the extruder. Most extruders have a knob that is used to adjust the amount of tension on the filament. Too little tension and your filament slips and you will have underextrusion issues.

Too much tension and your filament will look like it has bite marks on it or even snap off. Find the sweet spot in between.