Printing issues- over extrusion.

[runic shard]

Hello, from today I am facing a significant issue while printing.
As you can see from screenshots it seems with an over extrusion issue.
I have checked the nozzle and have already cleaned it up with cold pull method and nothing changed.
Also, I tried to investigate if the extruder has any sign of issue or blocking during the print but I didn't notice something strange.
I have tried several filaments, all were PLA and I had the same issue exactly.

Printer details:
My current printer is a voron 2.4 with xol toolhead (ebb36 toolboard), rapido v2 HF,
Sherpa mini extruder.

Last but not least, it was printing well until a few hours ago.

[runic shard]

This is the result after cleaning the nozzle. I have low the speed also.

[marsh osprey]

Have you by chance printed abs or asa and do the problems persist with that type?

[runic shard]

Yes, yesterday I printed ABS.

[marsh osprey]

Hmm well my other 2 ideas are 1) have the PTFE zip tied to the canbus cable like that, it looks like a pretty steep sweep by the exhaust 2) the PTFE looks like its clear but maybe thats the lighting it should be milky or hazy looking

[runic shard]

Sorry I didn't understand 😕

If I understood correctly, no, it's not problem of PTFE tube.
I have already tried to remove filament from it and print without the PTFE tube.

2. I have printed for a hundred hours with this PTFE tube without any issue.

[runic shard]

And the issue remaining after I changed the nozzle

Is there any chance the stepper motor of extruder is damaged?

[runic shard]

From what I can understand, from the video or anything else I have already tried, is that the stepper motor has not the power anymore to push the filament.

[light spindle]

if you just extrude in the air does it work fine?

[runic shard]

If the filament is not into a ptfe tube then yes.

[light spindle]

i mean if its attached, not while printing

[runic shard]

else i get inconsistent measuments

[light spindle]

ah okay

does it come straight out of the nozzle?

[runic shard]

Yes, it does. until yesterday morning I was printing without any issue

[light spindle]

so right now when you try to extrude mid air it comes out straight right?

but yea thats real annoying :p

intermitent power loss while not moving would be sligthly weird to be the reason but of course its possible

[runic shard]

I understand that if the extruder encounters resistance, it starts to spin more slowly

[runic shard]

I have checked the cables, but it doesn't seem like the extruder has stopped. Actually, it doesn't stop.

[light spindle]

is thats what happening to ya?

[runic shard]

I think so, but I'm not an expert to determine if the stepper motor works that way or it shouldn't

[light spindle]

they generaly tend to just go until they skip (you hear a click usualy)

[runic shard]

I didn't hear anything at all. Also, I'm watching the extruder to see it if it'll skip

[light spindle]

okays

after you see if it skips could ya remove the nozzle and just extrude mid air to see if that works fine?

[runic shard]

I have tried that. And it seems to work fine.

here is rotating without a filament

when I push with my finger it seems that rotating slowy.
I don't apply much force

[runic shard]

I noticed that tmc becomes really too hot for the testing I am doing.

@light spindle any idea for the above?⤴️

I have current on TMC to 0.650.
I tried to extrude without filament inside and after five minutes stepper motor and tmc of ebb36 are too hot