Waiting... my least developed character trait
:lol: :lol: :lol:
Personally, I don't believe that it is the extruder. This thing is strong enough.
I don't believe that is the extruder either, after some tweaks works fine.
. Or the board/stepper driver is broken and doesn't provide enough current at times. Looking at the last underextruded piece, the regular underextrusion pattern might indicate such a problem.
I was looking more carefull to the extrusion test photos, trying to understand your correlation. I can´t make that assumption/correlation just because of the regular pattern. However I agree with you, the source of the underextrusion problem could be there.
I noticed that between underextrusions you have a few layers well printed (no underextrusion) which sends a little bit my nozzle theory down the drain. If the nozzle didn't have enough time to heat the filament at higher speeds It shouldn't have good extrusion between underextrusions.
Or maybe it is way less intricate and there is "only" some electrical interference due to a broken/damaged wire between the stepper and the board.
Don't think so! This is not an isolate problem on your printer. Did you noticed the views/replays of this thread? This is a widespread problem...
Been there, done that.
I now use an exquisite swiss_design™ filament spool holder (courtesy of Robert - link). But I still experience underextrusion (another hint that it is not the extruder in my case).
Wow RESPECT Robert!! Awesome design and it works great. I will print one Thanks
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Waiting... my least developed character trait
Personally, I don't believe that it is the extruder. This thing is strong enough. Something's wrong somwhere between bowden tube, teflon piece and nozzle. Or the board/stepper driver is broken and doesn't provide enough current at times. Looking at the last underextruded piece, the regular underextrusion pattern might indicate such a problem. Or maybe it is way less intricate and there is "only" some electrical interference due to a broken/damaged wire between the stepper and the board.
Been there, done that.
I now use an exquisite swiss_design™ filament spool holder (courtesy of Robert - link). But I still experience underextrusion (another hint that it is not the extruder in my case).
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