I have a 3D printer enclosure from Creality for my Ender 3 Pro. I wanted to use some of the unused space to hold tools so they would be out of the way but handy when needed while at the same time utilizing space that was available. I designed this s hook to go over the framing of the enclosure to hang a heavy wrench that I sometimes use. I used 90% infill for the hook to help ensure it would hold the weight. It may be overkill but that's what I decided to do. Now when I need the wrench I know exactly where it is.