extruder motor work / click / not turn some time
Hi ,
sorry for my english, I'm french user 🙂
I have something strange on my MMU2 MK2. When I want print big file, my extruder block, sometime first and totaly after. The file i want print is very simple just un tub.. For example :
I update firmware, i check tension of extruder screw like prusa video . When I test , sometime the extrud click (like he was block, exept he has no filament) or not turn (but i have the little noise like if turn) even it's empty. When i push filament manually no problem
Sometime this appening : https://drive.google.com/open?id=1dhy8v1AJsrwt0yc1xw1cf8T3kyDitlh9
Edit : I note , on big print it's alway the left side who don't print correctly. I don't unterdstand why ? :/
Any idea ?
Thanks to all
Re: extruder motor work / click / not turn some time
Maybe broken cable of the extruder motor? Would also explain why it happens in specific region (high, left side for example) during print.
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Re: extruder motor work / click / not turn some time
Thanks for answer.
Yes it's only on left side, you can see on picture :
I check the cable but it's normal. I try to switch with X axis and the both work correctly : /
Re: extruder motor work / click / not turn some time
You said the extruder clicks sometimes, even when there is no filament loaded? That makes me think that you might have some debris interfering with the extruder gears.
Have you opened up the idler door yet to check for any kind of debris? I would do that. Make sure nothing is in there that would rub against the gears, or cause it to click like you described.
Re: extruder motor work / click / not turn some time
I check the cable but it's normal. I try to switch with X axis and the both work correctly : /
How did you checked it? If it's broken inside, it's hard to detect.
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Re: extruder motor work / click / not turn some time
You perfectly right ! And you give me a idea. The bug appeared this morning , so i try whit LCD Screen to move extruder. He make noise but not turn. So i altern Z Axe up and Extrude fonction (I don't have put filament in extruder) . And after 3 mm on Z Axe, Hourra the extruder work again.
So i think youre agree, that meen it's cable ?
Re: extruder motor work / click / not turn some time
So i think youre agree, that meen it's cable ?
Sounds to me. You can contact Prusa live support and try to get a replacement if you're inside a warranty for free. If not, you can try replace the cables by yourself and if that doesn't work get a whole motor replacement.
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Re: extruder motor work / click / not turn some time
Thanks you so much !!
Effectively after 2 unmounting i found exit the screw who take cable on extruder. Not a lot but just enough for touch the metal of frame (on Y home) ..
i sold a new wire and it's work perfect !
Have a nice day !
Re: extruder motor work / click / not turn some time
Thanks you so much !!
Effectively after 2 unmounting i found exit the screw who take cable on extruder. Not a lot but just enough for touch the metal of frame (on Y home) ..
i sold a new wire and it's work perfect !
Have a nice day !
I'm glad you found the issue. Happy printing! 🙂
Often linked posts:
Going small with MMU2
Real Multi Material
My prints on Instagram