All files are to be printed in place in the given orientation

You'll need 4 complete holders per spool

This spool holder is meant to be extremely minimalistic and uses as little filament as possible.

The parts are to be printed in the orientation I placed them in, which allows this spool holder to hold extremely large loads.

And because each spool requires 4 complete holders, it can be moved further apart to accomodate any spool that can sit vertically on the shelves.

Also, the design uses wheels that are slightly off center to allow for the spool to roll freely while greatly lowering the risk of spools being pulled off the shelves.

This design doesn't incorporate a filament guide as filament guides placed beside the spool are much less effective than if the filament guide were placed on the printer. Although if you really wanted to you could probably print an extra complete holder, and route the filament above/under the wheel (depending on how the filament bends) so that it doubles as a filament guide :)

 1 complete holder consists of:
1x Holder Left
1x Holder Right
2x Wheel Peg
1x Wheel

Assembly:

• 1. Insert 1 peg through each side of the wheel so that they interlock in the middle
• 2. Insert the peg + wheel combo into the square of either Holder Left or Holder Right
• 3. Insert the other side of the holder
• 4. *optional* If parts are too hard to push together, use a heavy object and lightly tap them together
• 5. *optional* Use each complete holder as a fidget toy for about an hour to get the wheels extremely smooth :)

*IMPORTANT*

In my case the holders left and right wouldn't come apart easily once i put them together (without adhesives) so i don't recommend trying to pre-assemble without the wheel and pegs

P.S. When attaching it to the wooden planks, face the curved surface of the holder towards the spool. And sorry for the bad picture... Don't exactly have a top notch camera xD