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Thread: Ender 3 Not Extruding
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04-01-2020, 12:40 PM #1
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- Apr 2020
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Ender 3 Not Extruding
I have a problem with my extruder and don't know where to turn. It has been sporadically stopping extruding partway through a print for a couple weeks. If I restarted the printer it would behave fine for a print or two and then do it again. Now it won't extrude at all. It's not a plugged nozzle, I can push filament through it fine. The printer has been upgraded with a SKR 1.3 board with TMC2208 stepper drivers. It has Marlin firmware. I have swapped the stepper driver and the motor still won't turn. I then plugged the motor into the X axis connector and it turns fine. The firmware hasn't changed for a few months. I don't know what to do next short of putting the original board back in it. I changed it in the first place so I could print with PETG so I really don't want to do that.
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04-01-2020, 03:34 PM #2
I would check the alignment of the Extruder Gear. Could be catching of the extruder assembly.
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04-01-2020, 05:33 PM #3
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04-01-2020, 06:36 PM #4
A point about Marlin firmware .
FYI - Marlin has a safety it the hot-end is not up to 170C it will not turn.
Code:#define PREVENT_COLD_EXTRUSION #define EXTRUDE_MINTEMP 170
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04-01-2020, 09:41 PM #5
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04-02-2020, 08:10 AM #6
Then I would suggest that the stepper motor cable could be intermittent an may need testing / replacing
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04-02-2020, 08:48 AM #7
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04-05-2020, 10:13 AM #8
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- Apr 2020
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I'm pulling my hair out now. This problem has a mind of it's own and I can't pin it down to anything specific. I have swapped cables, motors and stepper drivers and it seems to work for a bit with each trial and then it goes back to not moving again. The last time it did it the motor spun for a revolution or 2 and then shuddered for a second and then stopped. I ordered a replacement motor and cable (came together) with the hopes that it would be one or the other and when I hooked them up it did the same thing. So now all I have left is to try updating and re-flashing the Marlin firmware and if that doesn't do it I guess I will have to replace the mainboard. This mainboard is only 4 months old. I don't know if they'll replace it for me or not.
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04-05-2020, 04:33 PM #9
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- May 2018
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I am very confused, why do you need to upgrade a main board to print PETG? There is virtually nothing different between printing PETG and PLA but maybe 20 degrees.. PETG prints best for me at 230C, PLA 210-215C Please explain why you had to upgrade the printer for it to do something so basic as heat the hot end to 230C.
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04-05-2020, 06:05 PM #10
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- Apr 2020
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Ender 3v2 poor printing quality
10-28-2024, 09:08 AM in Tips, Tricks and Tech Help