I recently got into CAD and 3D printing, which combined in a weird way with my other hobby - guns. Currently I’m designing and prototyping parts for a parametri

I recently got into CAD and 3D printing, which combined in a weird way with my other hobby - guns. Currently I’m designing and prototyping parts for a parametric workholding setup that will help me repeatably produce an item whose dimensions match some of those which make an AR-15 lower receiver capable of mating with other components of the gun. Now, I have no background in any of the above, but I have lots of patience and no fear of failure. All this helps me keep sane while listening to yet another interminable sprint planning.