Prusa i3 filament guide with 22mm bearings

Filament guide for Prusa i3 printers. Note you need 2 standard 22mm bearings.
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updated January 27, 2023

Description

PDF

Description:

Filament guide that allows you to guide filament thread from behind the printer down to the extruder with minimal friction.

For assembly you will need:

  • M3x18 screw (2x) - longer screws can be used too
  • M3 hexagon nut (2x)
  • Bearing: 22mm diameter, 8mm bore and 7mm wide (2x) - standard bearing for in-line skates

Glue is not needed, the nut will hold inside when the guide is assembled.

Printing:

PETG, 0.3mm layer height, 15% gyroid infill, 4 perimeters. The part named UniversalStand should be printed 2x! No supports needed.

Remixes:

I've made this model in online CAD software Onshape. Here is a link.

Note:

This is not my own idea. I've seen similar design on some pictures but it used different bearings. I didn't find the original link, so it's not exactly a remix. If you have any objections, please let me know.

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The author marked this model as their own original creation.

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