Prusa i3 MK3 (MK2S) filament runner for external spool
Source: Thingiverse by jltx
The Prusa i3 MK3 (MK2S) filament runner for external spool is a free printable 3D model from Thingiverse by jltx. I'm not a fan of cantilevering a big heavy spool off the top of the printer frame, so I go outboard. You can download the STL file from the original listing below and print it at home.
About this model
I'm not a fan of cantilevering a big heavy spool off the top of the printer frame, so I go outboard. This is for use with external spool holders. I recommend: print 2 of these and sandwich a 608 bearing between. Insert in hex hole at top of Z axis. Just slide filament through angled slot and get friction-free feed. 12/23/17: can get tight printing with Z > 180mm. So I added a lift piece you can stack underneath the runner. You can add this even with a print going. 'F' marks the front. I also tweaked the runner a bit to be smoother. 1/27/18: added version with slightly wider clearance to account for bearing manufacturing variability if you encounter rubbing. Added pic of a good reason to go outboard.
Frequently asked questions
- Is this 3D model free to download?
- Yes. Prusa i3 MK3 (MK2S) filament runner for external spool is free to download from Thingiverse. Click the "Download free STL" button above to open the original listing.
- Where is the STL hosted?
- The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by jltx.
- Who made this model?
- Designed by jltx, published on Thingiverse. Please credit the creator when sharing your print online.
- Can I print this at home?
- Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.
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