Concentric Fidget, print in place

thingiverse

I've printed this in PET-G and PLA,and ABS, it's a lovely fun desk toy, and demonstration for 3D printing. You can get some of the outer rings apart, but you have to try, so not 100% perfect, but decent. I printed with 0.4mm nozzle and accuracy worked otu well. Drawing it was literally 3 steps: 1. Draw concentric circle with correct diameters for width of rings and spacing 2. Revovle the rings 3. Cut the sides off symetrically I expect there may be a more elegant way to do it, but its a fun 10 minute little exercise to draw your own if you are new to CAD.