Filament Efficient Folder Holder (requires cardboard)

thingiverse

A teacher at our school was struggling with a storage cabinet that wasn't big enough to hold even a standard manila folder, so my engineering class transformed into an impromptu IKEA project that lasted nearly all year. We designed a solution that would use minimal filament without compromising structural integrity by repurposing cardboard boxes from the copier rooms. By cutting and super gluing the cardboard onto a frame for each shelf, we were able to reduce filament usage by 10%. However, we faced another challenge: our shelves needed to meet specific requirements. They had to be wide enough to fit large folders (24 centimeters), with at least 26 centimeters of space between slots and walls that were 1 cm thick on each side. We also needed to accommodate 10 slots for folders, with a height of 4 cm each, and leave room for labels. The biggest problem was the size of our shelves - they were too large for our 3D printers to fit on the build plate. I refused to accept a simple solution, so my partner and I designed an intricate system of interlocking mechanisms to save the teacher from the misery of cramped folder spaces for their students' work.