Extruder gear slipping
Just noticed that my extruder gear slips sometimes making like a click noise and I think this is what's causing my layer shifting problem that occasionally appears. When the noise appears and I lightly hold the filament, I can feel a jerk in there, and looking through the side opening the gear looks to make a shift as well that coincides with the noise
RE: Extruder gear slipping
A couple of things can cause this.
1. Tighten/adjust your extruder gear pressure. If your issue happens frequently, most likely cause is not adjusted.
2. Heat creep. Most often when printing miniatures or small parts. Temps in the head build up because head is not spreading the love. Increase part count. Open enclosure door. Increase cooling (new page in prusa slicer for this)
3. Over temperature on "delicate" filaments - Filamentum comes to mind. Increase cooling.
RE: Extruder gear slipping
@dan-rogers
To increase pressure i would tighten the springed screw on the side of the extruder right?
RE: Extruder gear slipping
If you have not done so, check that the grub screws on the extruder gear is properly tightened. I started getting occasionally clicking that grew worse over time. Then extrusion stopped. Turned out the grub screws had worked loose.
jwv
RE: Extruder gear slipping
There are also regular maintenance tasks on the extruder.
https://help.prusa3d.com/en/article/i3-printers-regular-maintenance_2072
Work through this, some Important adjustments etc....
Tank you very much!
RE: Extruder gear slipping
Before doing any of these clean out the grooves of your bondtech pulleys. They have been slipping so there will be debris somewhere, this can compound the problem.
Cheerio,
RE: Extruder gear slipping
I found on mine, the set screw on the bond tech gear was loose. It's very small, use the smaller allen wrench and tighten it. If you can't see the set screw, use the menu option to rotate the extruder gear until you see it.