Extruder motor on a Prusa Mini is too hot to handle. Is it a difficulty?
 
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Extruder motor on a Prusa Mini is too hot to handle. Is it a difficulty?  

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Shisui2027
(@shisui2027)
New Member
Extruder motor on a Prusa Mini is too hot to handle. Is it a difficulty?

Is this typical? Even if it's not nozzle-hot, the temperature is too high to hold firmly for longer than 5 or 10 seconds. Additionally, there aren't many retractions or other quick movements; it merely draws straight lines.

While projected to be warm, none of the other motors are truly hot.

The printer appears to be operating flawlessly, including extrusion.

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Posted : 01/09/2022 6:44 am
cwbullet
(@cwbullet)
Member
RE: Extruder motor on a Prusa Mini is too hot to handle. Is it a difficulty?

I have 4 and this is not an issue for me.  You could contact support via Chat.  

--------------------
Chuck H
3D Printer Review Blog

Posted : 01/09/2022 12:48 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Extruder motor on a Prusa Mini is too hot to handle. Is it a difficulty?

As Chuck said. 

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Posted : 01/09/2022 3:52 pm
Richard D
(@richard-d)
Trusted Member
RE: Extruder motor on a Prusa Mini is too hot to handle. Is it a difficulty?

There are times when mine has been very hot; I don't know for sure, but I think mine is now running cooler.

The only thing that has changed is my having taken the extruder assembly apart for cleaning etc.  And to muck about trying to eliminate gear lash.  What I think might be happening is that things have been assembled too tightly (probably the pinion on the motor pressing too hard against the extruder gear) - and that is what is causing the overheating. 

Posted : 02/09/2022 3:56 pm
Zoltan
(@zoltan)
Member Moderator
RE:

@shisui2027

is your printer still under warranty?

even an old man can learn new things 🙂
Standard I3 mk3s, MMU2S, Prusa Enclosure, Fusion 360, PrusaSlicer, Windows 10
PRUSA MINI+ Prusalink + Prusa Connect

Posted : 14/09/2022 3:30 pm
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