Ralph, thanks for making that video. I have tried to do some investment casting, but have failed in the metal pouring part. Your video mentions a centrifugal casting machine. I have seen these in jewelery size but not big enough for the part you showed. Can you post a photo of the casing machine?
Hi Ron. I'm sure the centrifugal casting machines you have probably seen is like the one I use.
But I have replaced the usual small (jewelry size) crucible with a larger one (note the smaller one on the casting tub floor) and have extended the arm by 1 inch to accommodate somewhat larger molds. And yet, I am pushing it to do a 3.0 oz cast. Ralph
Thanks, Barnesrickw. It is my love of woodworking with primarily hand tools that has drawn me to build miniature replicas which I often carry in my pocket. Never want to be too far away from my tools. And they actually work like the larger counterparts, and I actually use them in my other hobbies - model airplane and miniature furniture construction. I am so passionate about my tools that I have built some of silver and gold, and they do evoke conversation with others who appreciate the crafts. Ralph
Thank you. That is like the jewelery ones Ive seen, but a good deal bigger. I did not realize they were made that big. I assume the weight seen to to the side swings into the opposite side to make the spin part balanced?
Have you tried using a vacuum under the flask and just pouring the metal into the sprue? I have tried that, but with little luck. I was trying to pour a tree of small parts and only got one or two full parts.