Filament not extruding

[infected36]

I got it intalled great, but now whenever I try to extrude some filament the motor keeps clicking and the wheel keeps vibrating, like this:

video_2025-05-13_16-42-51.mp4

That was trying to extrude at 5mm/s.

The printer was working fine before, and I haven't done any changes other than those specified in the guide and the PID steps, bed mesh and z offset.

[bassamanator]

1. Heat the nozzle.
2. Remove the filament.
3. Extrude some filament.

• Does the knob spin?

3. Retract some filament.

• Does the knob spin in the opposite direction?

[infected36]

Thanks for the reply. Trying to remove the filament through klipper:

video_2025-05-14_15-28-02.mp4

I can remove the filament by turning off the stepper motors and spinning the knob left.

Asking klipper to extrude:

video_2025-05-14_15-28-48.mp4

Asking klipper to retract:

video_2025-05-14_15-29-08.mp4

I can extrude by turning off the stepper motors and turning the knob right:

video_2025-05-14_15-31-18.mp4

[bassamanator]

Reduce extrusion feedrate to 1mm/s. Set length to 50 mm or so.

Do an extrude and retract again. Is the knob spinning "correctly"?

EDIT: keep filament out for this testing process.

[infected36]

Extrusion:

video_2025-05-14_15-46-50.mp4

Retraction:

video_2025-05-14_15-46-55.mp4

Each one goes on for 50 seconds.

[bassamanator]

How strange. Any messages in the klipper console?

And the knob spins smoothly by hand with the motors off?

[bassamanator]

I see the filament is back in play, run this test again without filament loaded.

[infected36]

Same thing without filament, just slightly less noisy. Nothing on the console, even without hiding temp. Knob is smooth and works to extrude and retract the filament when the motors are off. I searched for this error on google and found a couple of results that said something about the pins being wired incorrectly, but I haven't done anything with the wiring: https://www.reddit.com/r/klippers/comments/1cx8noc/extruder_not_working_after_klipper_install/

[bassamanator]

Yeah something is up with the wiring, however, I thought everything was working fine on marlin, can you confirm?

[infected36]

Yep, was having no issues on marlin

[bassamanator]

Have you completed the configure your printer section?

[infected36]

Yep, msx positions for x, y, z, PID for the bed, PID for extruder, z offset and med mesh

[bassamanator]

It's a wiring issue, however, why it was working in marlin and know klipper...

1. Replace your printer.cfg with this one: https://github.com/Klipper3d/klipper/blob/master/config/printer-sovol-sv06-2022.cfg.
2. At the top add [include ./osskc.cfg].
3. Adjust your mcu serial.
4. Extrude/retract again given previous settings.

[infected36]

Sorry for going missing, didn't have time to work on the printer. I did as you instructed, twice, and still the same vibrating result, both with and without filament loaded in, and filament still extruded and retracted if I spun the knob manually.

[infected36]

I bought the printer second hand, so I don't know its ins and outs, but I have a multimeter and could try to check the wiring, though I don't know exactly what to look for.

[infected36]

@bassamanator Any ideas? Don't know if you got a notification for the previous messages.

[bassamanator]

Keep filament out of play. Keep in mind that when the extruder knob spins clockwise, that is an extrusion, and anti-clockwise is a retraction.

As a first step, change the direction of the dir_pin by removing the !, source. Do an extract/retract in the klipper ui. Are things different now?

As a second step, undo the changes above (get back to the stock printer.cfg, but make sure mcu path is correct). Watch the videos below and physically change the directionality of the stepper. Do an extract/retract again.

Let me know how it goes. Also wondering what marlin version of the official firmware you're using, like it is the latest official?

These 2 videos are relevant:
https://www.youtube.com/watch?v=AgyNM7FQrmk
https://www.youtube.com/watch?v=7GG6XK6niLM

[infected36]

I flipped the wires as instructed on the first videos. Switched the lowest wire with the one above. When I restarted and tried to extrude, the knob moved slightly to the right and I got this error:

TMC 'extruder' reports error: DRV_STATUS: 001700d0 s2vsa=1(ShortToSupply_A!) ola=1(OpenLoad_A!) olb=1(OpenLoad_B!) cs_actual=23
Once the underlying issue is corrected, use the
"FIRMWARE_RESTART" command to reset the firmware, reload the
config, and restart the host software.
Printer is shutdown

I tried restarting and retract, same thing. Maybe I'm changing the wrong cable, so I went to the knowledge base to find if it was the correct one, it's the extruder motor wire, the one to the left of the knob:

I also checked to see if it was wired correctly before and it was.

[bassamanator]

Can you reset things to the way they were before and try lowering the extrusion rate?

[infected36]

Lowering it to 0.01 and extruding, it spins right a tiny amount, then left a tiny amount, then repeats for a long time. retracting goes the opposite.

[bassamanator]

Try this: #214 (comment)

[infected36]

With the cables still switched?

[infected36]

With the cables switched it gave the same error as before when I tried to extrude or retract, without them switched, it behaves like before, when trying to extrude 1mm/s it vibrates back and forth, at 0.01 it goes back and forth very slowly

[infected36]

I tried testing the motor like the second video showed, the multimeter didn't beep when i touched the 1st and 3rd pins, or when i touched the 6th and forth. It did beep when I touched the 1st and 4th and when I touched the 6th and 3rd.

So I tried switching the 3rd and 4th wires and got the same error as before:

TMC 'extruder' reports error: DRV_STATUS: 001700d0 s2vsa=1(ShortToSupply_A!) ola=1(OpenLoad_A!) olb=1(OpenLoad_B!) cs_actual=23
Once the underlying issue is corrected, use the
"FIRMWARE_RESTART" command to reset the firmware, reload the
config, and restart the host software.
Printer is shutdown

When extruding and retracting, in 1mm/s and 0.01mm/s

[infected36]

I checked one of the z motors and it also beeps between 1st and 4th, 6th and 3rd

[bassamanator]

It did beep when I touched the 1st and 4th and when I touched the 6th and 3rd.

From the diagram:

• A end 1,2 need to connect to B end 1,4
• A end 3,4 need to connect to B end 3,6

Is this the case

While you're working on this, it might help to remove the extruder assembly from the gantry. I usually set the extruder assembly on a filament box that is resting on my build plate when I'm installing a new nozzle or something.

Also: #214 (comment)

[infected36]

From the diagram:

A end 1,2 need to connect to B end 1,4
A end 3,4 need to connect to B end 3,6

Is this the case

This was the case, yes. I tried switching B 1,3 like the video said, but got that error and switched back. I just tried switching B 1,4 but the knob does the same thing as previous, though it does not give the error as before.

I've now tried every possible configuration of the wires that does not result in an error and they all behave as the original configuration, the knob will go foward a step, then back, and repeats.

While you're working on this, it might help to remove the extruder assembly from the gantry. I usually set the extruder assembly on a filament box that is resting on my build plate when I'm installing a new nozzle or something.

Yeah, this helped.

Also: #214 (comment)

I've tried it all with both configurations, no change

[infected36]

I tried switching some cables around. I plugged the x axis cable on the extruder and it still went back and forth. I plugged the extruder cable into the x axis and it still worked like normal. So I'm thinking my extruder motor is wired weird, maybe?

[bassamanator]

So marlin prints fine. You can manually spin the extruder knob and it extrudes (when there's filament). Is this the case?

I'm not sure what to say. Something strange is happening:

1. The official marlin firmware runs on all machines, including yours.
2. The de facto official klipper printer.cfg runs on (should run on?) all machines, except yours.

Not sure how this is possible. 🫤

[infected36]

Yep, that's it, any ideas what I could mess around with that might help? I really wanted to use klipper, but if I can't figure this out I'll have to go back to marlin... The other motors were so smooth and efficient

[bassamanator]

I might be out of ideas. I'll keep thinking on it, but it would help to ask at https://klipper.discourse.group/, there are some hard hitting gurus there.

[infected36]

Alright, I'll ask for help there. Thanks for your effort, though. If they manage to help I'll update it here.