Filament Spool Wall Holder with Bearings

This is a filament spool holder meant to be screwed in to a wall or a piece of furniture (ikea kallax in my case). It is made to fit a 16mm (5/8 inch for burger people) wooden roller, just make sure to research which hardware store sells them in good quality, but still cheap. It has 3 4.5mm holes for screws, these mount are 5mm thick. Distance between rollers is 160mm (measured from center), same for bearing mounts (where u clip them to rollers). If u're wondering about durability, it is more likely that the ikea shelf will fall apart than this falling of it, to be honest i once fell on it when it was dark and held onto it for a bit and it didn't move a bit. Bearing mounts are made to snap fit, they are slidable on rollers so u don't have to take them off to put a wider spool or just change placement. 


ROLLER HOLDER

Roller distance (center) - 160mm
Screw size - 4.5 mm / depth 5mm
Roller Holes - 16.05mm truncated cone shape to 16mm
Whole size - made to fit on a 220x220mm bed but u have to rotate it

SPOOL BEARING MOUNT

Roller distance (center) - 160mm
Bearing holes distance (center) - 117.89mm
Bearing holes diameter - 3.8mm - made for M3 screws
Bearings - Outer diam. - 10mm , inner hole diam. - 3mm , thickness - 4mm
Thickness of whole mount - 10mm without screws

For bearings I used M3x10mm screws which are perfect, u can use longer screws because they go to the middle of spool (i mean the direction). You have to use washers (in my case 7.1mm outer diameter) between bearing and plastic part. I recommend screwing the nuts flat side outside.

(i recommend using slightly thicker bearings as it is sometimes hard to set in the spool when changing them)

ADDITIONAL INFORMATION

I've cut the roller to fit 4 filament spools (approx. 34cm each, remember u need 2 rollers with same length), i think u can make it to fit at least 6 spools, it really depends on strengh of the wooden roller, and a surface u want to screw it in (a brick wall is propably better than cardboard ikea shelf). Distance from spool (Sunlu gen. 3 in my case) to wall is approx. 12mm.


PRINT SETTINGS

Both models should be printed flat (on side), remember to mirror the big part, bearing mount is symetrical so u don't have to. Everything was printed with Sunlu PLA+2.0, after 4 months it's still perfectly stable (it is in direct sunlight for most of the day, it gets a lot of vibrations from printer)

Bearing mount:
4 wall loops, 3 top/bottom layers, 20% gyroid infill.

Spool mount:
4 wall loops with alternate extra wall (wall to wedge infill into wall), 4 top/bottom layers, 10% gyroid infill, I used supports for screw holes but u don't need them propably, 120mm/s Outer wall, 220 inner wall, 250 sparse infill.



I hope u like it if u decide to trust this.
If u want to see how it works, didn't pull it much cause i was mid print but it's really sturdy: