Recently one of the magnet holders for my window shutters broke, and I thought I'd take a crack at designing a replacement to 3D Print. I'd never designed anything in CAD software before, so I had no real reference.

I found FreeCAD extremely easy to use and intuitive. I watched a couple videos and followed-along with the tutorials, then started on my own item. It's a relatively simple 3-part component. I took measurements with digital calipers, and in a few hours was printing the first prototype.

A couple prototypes later (small measurement adjustments to account for plastic shrinkage, etc), I had the final model. Replaced all of the magnet holders since they were sure to go soon, too.

I had fun, and finally used my 3D printer for something "real". Pretty cool.