Mein Problem: Ich musste einen neuen, gesamten Druckkopf kaufen und einbauen, nachdem eine Menge Filament meinen Original Druckkopf mehr oder weniger zerstört hat. Ich habe bei Sovol den gesamten Extruder gekauft, aber nach dem Einbau funktioniert die Filamentzufuhr nicht mehr. Der Extrusion Motor arbeitet nicht. Die Düse wird aufgeheizt bis 250 Grad, aber das Rad transportiert kein Filament und rührt sich nicht. Jetzt habe ich auch noch das Mainboard erneuert und es hat nichts verändert. Alle Funktionen funktionieren, nur der Filamenteinzug nicht. Das Rad bewegt sich nicht. Was kann bzw soll ich tun?
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My problem: I had to buy and install a new, entire printhead after
a lot of filament more or less destroyed my original printhead. I bought
the entire extruder from Sovol, but after installation the filament feeder
no longer works. The extrusion motor does not work. The nozzle is heated up
to 250 degrees, but the wheel does not transport filament and does not move. Now I have also renewed the motherboard and it has not changed anything. All
functions work, except the filament feeder. The wheel does not move.
What can or should I do?
If you turn the manual wheel can you extrude filament?
Does the manual wheel turn when you send an extrude command?
Yes, if I turn the wheel manually I can extrude filament.
It’s not possible to activate the wheel by sending a command.
Even I replaced the mainboard and the whole toolhead 2 days ago.
I am helpless how to continue.
Check the motor wires (4 pin connector) at the toolhead board.
You could even try plugging in your old motor if you can make the wires reach.
I plugged in the old and the new motor-no reaction on both motors…
All the other actions are running.
It sounds if if your new toolhead has a bad board that isn’t able to run the motor.
Email info@sovol3d.com concerning the issue. Include your order number.
You could try swapping the old board into the new toolhead.
Your SURE there are no changes to your printer.cfg? Klipper could be sending the extruder move instructions to the wrong pin.
I will check Klipper.
Another question. On which pin is the motor connected to the motherboard? I can"t find any information about the location of the connection pin. Y,Y,Z axis are shown on the Sovo Mainboard “map”, but there is no information regarding E-Motor…
Here’s the extra MCU pinouts https://canada1.discourse-cdn.com/flex030/uploads/sovolforum/original/2X/b/b8131f9010f7639c8ca9a2dce31d390a5e621cbb.jpeg
Unless you messed with the motherboard, I wouldn’t think this would be the issue.
It worked before you replaced the toolhead & now it doesn’t.
Check the wiring & plugs on the toolhead board & anything else you removed during install.
Looking into Klipper files & anywhere else seems like your going down a rabbit hole…JMO
Stick with the basics & move out slowly from there.
If you put in a ticket with Sovol, see what they have to say…again…JMO
what I found out now: when the function “load fil” is activated, the motor get no power… I measured…but the head heats up and the display shows “retracting” of course nothing happens because the motor has no power… How to get power?
I mean the plug on the motherboard on the bottom of the printer. here are a lot of plugs but where is the extruder motor connected?
The extruder motor connects to the extra MCU in the tool head. The MCU communicates with the extra MCU via usb
The board in the toolhead is a separate MCU
[mcu extra_mcu]
serial: /dev/ttyACM0
restart_method: command
The extruder motor pins should be addressed as:
[extruder]
step_pin: extra_mcu:PA8
dir_pin: extra_mcu:PB8
enable_pin:!extra_mcu: PB11
[tmc2209 extruder]
uart_pin: extra_mcu:PB10
interpolate: True
run_current: 0.8
hold_current: 0.8
uart_address:3
sense_resistor: 0.150