Hey! This thing is still a Work in Progress.
Files, instructions, and other stuff might change!
non-grinding feeder for Ultimaker
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Published on March 15, 2013
Description
This feeder can handle retractions with no problems and your filament will stop slipping or grinding. You do not need to use "proprietary" Ultimaker 2.85mm filament anymore as this feeder can handle 3mm and will not deform the filament. From now on you can use 3mm filament with the stock bowden and you will have no problems with jamming.
OpenSCAD File is really ugly... needs a lot of cleanup...
OpenSCAD File is really ugly... needs a lot of cleanup...
Instructions
You will need:
- 14 bearings 618/6-2RS (6x13x5mm)
- some screws, nuts, and washers (M3, M5, M6)
- bowden clamp: thingiverse.com/thing:17027
- rubber rollers
I used these pollin.de/shop/dt/MTE0ODU1OTk-/Heimwerkerbedarf_Eisenwaren/Laufrollen_Raeder/Lauf_Transportrolle_17_mm_4_Stueck.html
and cut a M6 thread into the hole. Maybe you can get some from an old printer or copier. It should also work with a knurled wheel. The deformation shold then still be less than with stock feeder as the pressure is much lower.
I printed the parts in PLA with 30% infill. Heatbed would be useful to prevent warping but it also worked without one. The bearing holes were a bit too large and I had to use epoxy glue to fill the space. I recommend to calibrate the printer.
- 14 bearings 618/6-2RS (6x13x5mm)
- some screws, nuts, and washers (M3, M5, M6)
- bowden clamp: thingiverse.com/thing:17027
- rubber rollers
I used these pollin.de/shop/dt/MTE0ODU1OTk-/Heimwerkerbedarf_Eisenwaren/Laufrollen_Raeder/Lauf_Transportrolle_17_mm_4_Stueck.html
and cut a M6 thread into the hole. Maybe you can get some from an old printer or copier. It should also work with a knurled wheel. The deformation shold then still be less than with stock feeder as the pressure is much lower.
I printed the parts in PLA with 30% infill. Heatbed would be useful to prevent warping but it also worked without one. The bearing holes were a bit too large and I had to use epoxy glue to fill the space. I recommend to calibrate the printer.
License
non-grinding feeder for Ultimaker by jakob is licensed under the Attribution - Non-Commercial - Share Alike license.

the more recent models of ultimaker have a spring loaded extruder.