Hello everyone! First real post here. Hope I'm in the correct sub-forum! I want to put together a process to make parts like this: Been giving this a think for a while, and what I've settled on is a vacuum assisted investment casting setup. Or at least that's what I think I've settled on. That's why I'm here. I want to see if you think this will work. The main concern is maintaining a high level of detail on the parts. I want them to be as "clean" and accurate as possible. My thought is to cast these two at a time, back to back, with sprues and vents that look like this: Then that goes into a rectangular flask like this: Thoughts? Ideas? Advice? I hope I've done a good job explaining the goal here! The rectangular flask is built around the idea of wanting to (a) minimize the amount of investment I use on each part and (b) being able to get more than one flask into the burnout kiln at a time. I saw videos from David ("thehomefoundry") where he's using a similar vacuum assist setup. What kind of pressure are you drawing on your setup?