Deskbottom Spool Holder

I started to have a lot of filaments and little space to store them so I figured I could just hang them to the printer's tray.

Features:

• Fully adjustable in OpenSCAD
• Lets you pass the filament directly to the printer
• Holes to block the filament when not in use
• Contains a column to stack successful calibration shapes to help remember printing temperature and other settings for each filament