Side Mounted Filament Rack for Large and Small Spools

Yet another filament rack.

I couldn't find any models that fit my needs so I designed my own. 
I wanted to store my filament under my staircase and make use of the space between the studs, without the rack sticking out too far. 

Specs

• 3 countersunk holes for #8 wood screws (4mm diameter screw + 8mm diameter head)
• Holes positioned within the depth of a standard stud (3.5") for easy access
• Accommodates 2x 0.5" (~13mm) rods (I cut some old metal curtain rods)
• Adjustable rod slots for flexible spool placement (1kg and 250g spools)
• Chamfered front holes for smooth spool insertion (Note: I print inside walls first)
• Dual-sided design eliminates the need for mirroring the file

Print settings

• More walls = stronger brackets
• Printed in PLA+, with 5 walls, 5 top and bottom layers, 20% infill 
• ~45g of filament and 4 hours per bracket

Designed in Illustator and Tinkercad. No parametric files but easy to modify.

I am open to creating customized versions for different rod sizes upon request.