Don82

I struggled mightily in fluid dynamics, but I think a golf ball moving/spinning through the air vs a stationary object breathing is a little different. Wouldn't you want as much laminar flow as possible? I doubt you would see much difference either way. I was actually thinking smoother molds would make casting easier and there is always points for aesthetics. I want to get to a point I can test some ideas out but I'm still at the wobbly anvil stage. ABS isn't hard to print. It is stinkier, requires a really warm print bed, and doesn't like any kind of draft. I'd be more than willing to print one out if your interested. I'd just need the CAD file.

Have you thought about trying vapor smoothing ABS for molds? It would significantly reduce the amount of layer lines you would see. I don't know what acetone does to casting material, but you would also be able to remove the plastic without any heat if it will hold up. PS New to the forum and forging in general. I'm fairly experienced with 3D printers and CAD and this thread has been fascinating.