An optimized, sturdy and fast-to-print filament spool holder for 3D print farm, printer rack or shelf!

I keep my printers on shelfs in garage, and the stock filament spool holder of P1S did not serve the purpose too well as it required a lot of space in the back of the printer → I would have to move shelfs away from the wall behind them. However, I did not like the “side-attached” spool holder designs either as I was afraid of filament loading problems.

There were also problems with ready designs of wall/roof spool holders:

• Designs required bad printing orientation, led to:
  • Weakness. Required lots of wall and high infill % to catch up with design thats printed “laid down”
  • Need of supports
  • Big printing time
  • High filament usage

Therefore I came up with my own design which has worked perfect since day 1. Fast to print, sturdy outcome and low filament usage (around 90g per holder, where only 0,30g is used for supports).

Supports spools:

• Maximum outer diameter 225mm
• Maximum width 65mm
• Minimum inner hole diameter 43mm

Screws needed for attaching a holder to a surface:

• 4 pcs of Philips Flat Countersunk 3,5mm (diameter) x (required length). In my case, I used 4 pcs of 3,5mm x 16mm screws on a 12mm thick shelf panel. It attached nicely, without going through the top surface of the panel and leaving any marks.
   

If you are pleased with the design or have a revision suggestion, leave a like and/or comment!