Spool Holder Adapter - CREALITY Ender 3, Ender 3Pro
Description
I couldn't fit the adapters by @Vilove inside the filament spools that I had (1kg with 55mm bore, and 0.5kg with 52mm bore). I designed my own clip on bearing holders with 8mm bearings which drop down inside the original shaft diameter. This design now accommodates the smaller spool diameter as well. I did use @vilove 's end stop in the back. If you wish to use it you'll need to do two things as a non-3D printed fabrication steps: 1) Cut relief holes in the original shaft. 2) Hot-install (soldering iron) brass threaded set screw nut. This is somewhat optional, as the adapter part itself grips the shaft really well. I only wanted an additional tooth to bite in so that the adapters can never rotate down. Hole for the M3 brass insert is 4mmDIA, 4mmDP.
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