Remix of Phoenix Knight Designs's excellent 6x wire spool holder/roller for Multiboard. My design uses 3L Multipoint mounts in place of the original Multiconnect mounting, and adds rollers with 16mm and 20mm diameters. The 16mm pegs work reasonably well with these printed wire spools scaled to 114% (though 16.2mm or 16.3mm would probably fit more tightly).

I'm not so good with mesh modeling (mostly comfortable in FreeCAD which is pretty iffy for mesh work) so the Multipoint rails have been added using negative parts in Bambu Studio - the attached STLs “Filled Multiconnect” and “9x3L Multipoint Negative”. I haven't managed to export the holder with Multipoint rails cut out as a single STL so if you're not using my print profile(s) you'll have to add both parts and align it yourself.

The end peg sizes are the same and roller inserts are universal - the same part works with both the original 23mm roller and new 16mm and 20mm rollers.