I"m having consistent issues with my extruder not being able to push the plastic consistently. The hotend seems to be doing its job but the plastic is not being pulled through. I have this on multiple motors / hotend assemblies. It does this at all speeds. I can feel the plastic not being pulled. I have adjusted the tension that the idler puts on the plastic and still nothing. Eventually the drive gear gets clogged with plastic and will not push anything. Any thoughts / comments are welcome!