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I wound up slowing things down both on extrusion and retraction. I'll experiment ramping things up slowly to see how far I can stretch it. My print speed right now is 35mm/s and retraction is 3mm @ 30mm/s. When I switch back from the Volcano to the regular E3D, I'll speed things up a bit since the ...

So on retraction, the motor hums and I hear a click coming from inside its chassis. Does that mean too much current, too fast, or too long of a retract?

Notes/Observations: Retraction is probably set too high. I was using Cura's suggestion of 4.5mm @ 50mm/s The gear is torqued down pretty good and has thread locker on it. There is absolutely no play to it. After failures I clean the teeth out with a pick. This is using various PLA filaments. I haven ...

Just failed... the filament was ground down by almost 50% in one spot. Teeth marks past it in the tube. I was able to manually push the filament forward without any substantial pressure.

The extruder's steps/mm was properly calibrated, down to under 50 microns of accuracy. The filament has teeth marks in it along the entire length. When it slips, it grinds down the filament. The motor is cool running and does not click or knock. I added a spacer in behind the spring to increase ...

It's a Kysan NEMA 17 with a 5.18:1 gear ratio. It is warm, not hot to the touch. I have the current set to 1.2A in my smoothieware config.txt

I built a Griffin 3D delta and upgraded to an Azteeg X5, E3D V6 hotend, & an EZstruder bowden setup using a HobbGoblin 8mm drive gear. With any hot end (E3D, E3D volcano, JHead Mk IV) the filament does not feed for more than a few minutes with the EZstruder. If I remove the extruder from the ...