Gun related printing.
I've learned more about TinkerCAD and how to manipulate the models. So I redid the .458S funnel as a one piece project. And I learned how to smooth out the sides of curved objects. Picture below with the 2-piece gray one and the newer, smoother 1-piece one.
What are those little pieces in the picture you ask. Ah Ha. Once a month at my IDPA club we shoot a low light stage. I suck at holding a light and a revolver. And since I've got the Perfomance Center, slab sided 686 model, there's no good way to attach a light. Options: 1) Get a regular full, rounded underlug model and have it machined for a short rail to hold a light under the barrel. 2) Sew a magnet into a cap and put a flash light there once the start signal sounds. Quicker than clipping it on the cap. Or 3) Find a way to attach a light to the butt.
1) Under consideration, but I need it for 3/18's Belton, SC match held at night. This isn't cheap when you throw in a custom holster.
2) Done that. Fall back option.
3) Ah HA! So those little pieces are a saddle to hold the flash light straight against the butt. Second picture you can just see it between the light and grip. Yes I had to severely cut down the grip, I have several spare grips-which for revolver shooters they multiply almost as fast as holsters.
If you're curious I included shots of the TinkerCAD creation. The gray areas are "holes". I call them Black Holes because anything inside just disappears. I started with a solid block, the added the "holes" to form the shape. The last picture show the object "group" or compressed so the "holes" turn into non-magical voids.