I needed a way to organize all of the filament in my classroom. I challeneged a pair of students to design a way to store and organize my filament. They designed this spool holder using tinkercad. They are super proud of their design, and so am I!

They wanted to include a signature, so the initials of their names are embossed on the inside of the vertical arm. 

We printed these at 10%, but notice some bowing on the ones holding the close to full spools. bumping it up to 20% might be a good idea.