Extruder motor shaft broke

Ask the MakerGear community for assistance...
Post Reply
Vprints
Posts: 50
Joined: Thu Feb 19, 2015 8:06 pm

Extruder motor shaft broke

Post by Vprints » Wed Jan 20, 2016 11:07 pm

How does this even happen? (That's an honest/serious question.)

I had a print of about 3 hours stop half-way through. Figured it was a clog or filament jam of some sort. Took the filament out, checked the gear for blockages -- PETg often seems to get a stripped & bent wad right at the gear for me -- and it was OK. Got things back up to temperature, tried to insert filament -- and it wasn't gripping. Further inspection revealed it wasn't turning -- though the motor was humming as if it was.

So, I checked this forum :D and found write-ups on the pinion. My drive gear was spinning freely in my hand, but did seem to catch occasionally, so I took it apart. This is what I found:
pinion.JPG
On the positive side, my pinion isn't worn...
I don't feel like I'm abusing this poor machine, but... :shock: :?
-Vprints

Changing my world, one print at a time

User avatar
insta
Posts: 2007
Joined: Tue Sep 16, 2014 3:59 am

Re: Extruder motor shaft broke

Post by insta » Thu Jan 21, 2016 2:37 am

:shock:
Custom 3D printing for you or your business -- quote [at] pingring.org

User avatar
Jules
Posts: 3144
Joined: Wed Jan 21, 2015 1:36 am

Re: Extruder motor shaft broke

Post by Jules » Thu Jan 21, 2016 3:12 am

Duuuuude! :|

User avatar
jimc
Posts: 2888
Joined: Wed Apr 09, 2014 11:30 pm
Location: mullica, nj
Contact:

Re: Extruder motor shaft broke

Post by jimc » Thu Jan 21, 2016 12:59 pm

Yes i have seen people on the forum have that problem. Not often but ive seen it. Most likely just a flaw in the shaft. Send an email to support

User avatar
ednisley
Posts: 1188
Joined: Fri Apr 11, 2014 5:34 pm
Location: Halfway up the Hudson
Contact:

Re: Extruder motor shaft broke

Post by ednisley » Thu Jan 21, 2016 1:00 pm

Vprints wrote:How does this even happen?
Surprisingly, you're not alone:
viewtopic.php?p=12351#p12351

I suppose a Good Design would have the pinion gear wear out at the same time the shaft snaps...

Post Reply