So I recently got my Dual Extruder for my TAZ 5 and to be honest it has been a headache. The test print with the provided ABS was fine. But ever since I moved to PLA that’s when the trouble started. I’ve never had any issues with PLA and find it to be very forgiving. Well this is not the case with the new dual extruder as I have not had even one successful print. Both gears on the extruders start skipping and springing back. this happen usually 5-10 mintues into a print. Sometimes its one gear others times it’s the other. It has become very frustrating. Many times the gear would start skipping and after pausing the print I would test the extruder and it would be fine or stop skipping after 20mm of extrusion and i could run 200+mm with no problem. Upon resuming the print it would start skipping a few minutes into continuing it. Most times depending on the idler screw tension there would be no filament stripping and would only occur if I forced it to extrude by hand. These are all the things I’ve tried to troubleshoot the issue. let me know what you think.
- Tried all temps ranging form 190*-225*
Print Bed temp 50*-70*
Changed fan speed minimum (40,50,60,70)
Let machine Cool completely and then retried
- Tried multiple leveling ranges from the print bed
Tried changing flow % to 70 and 80 and 90
Tightened set screw on small gear on motor
Tried all levels of tightness with the idler screws
Checked Estps (E0 825 E1 833) and reajusted as per calibration instructiosn
- Cleaned extruder bolt teeth
Used eSUN cleaning filament
performed many cold extrusions
I have yet to work with retraction which may be the culprit. The reason I believe this to be true is when I print with only one printhead it is successful. I did a test print with the back extruder and a second one with the front and both were successful. It is only when I do a dual extrusion print that I have problems.