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Ender 3 Spool Roller Bearing

Creation quality: 5.0/5 (3 votes)
Evaluation of members on the printability, utility, level of detail, etc.


3D model description

Here we have an ender 3 spool roller bearing, printed in place.

Sick of having the thing jerk and snag and more, so I made a print in place roller bearing, but then went further and created a runner for it to run smoother on, a stop and sprung inserts to go into the spools, all to give you a nice snug roll.

This works better than a metal bearing, they are too smooth, the spool unravels, but this has enough friction to limit that.

The roller turns on its printed bearings, with the runner increasing the diameter of the spool holder and inserts making the spool fit snugly on it all.

Print in place, no supports, no in fill for everything.

Spool roller is print at 20mms walls max speed.

Once printed, creek each wheel to separate and turn until all free.

This may fit other spool holders out there but fits the ender 3 holder perfect so should fit other enders too.

Will fit over a 36mm diameter spool lip, runner making the shaft thicker and inserts fitting various size spools being sprung (2 per spool)


3D printing settings

All print in place no support and 0% infill 0.8 wall

roller bearing print no faster than 20mms (9 hours)

others printed well up to 40mms wall speed

3D printer file information

  • Design number: 487295
  • 3D design format: STL Folder details Close
    • spool roller bearing.stl
    • spool roller insert large sprung.stl
    • spool roller insert large.stl
    • spool roller insert small sprung.stl
    • spool roller runner.stl
    • spool roller stopper.stl

    Learn more about the formats

  • Last update: 2021-08-04 at 23:07
  • Publication date: 2021-08-04 at 19:41


MIT License


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