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This was a project I did in a group for my Materials Science class. Since I had access to a laboratory full of materials testing equipment, I'll give ...
Make positives of whatever it is you plan to cast. Sculpting, carving, or braiding thin wax pieces is easiest. Another option is to copy an existing ...
Place your sprue into a stainless steel flask and seal the holes. You will pour your investment into the flask to completely cover the wax pieces. Fo...
Find some glass. You can purchase glass, or you can repurpose old glass. In this project, we used four different types of glass. I have details on the...
Take your pieces of glass somewhere safe, wrap them up in fabric, then hit them multiple times with a hammer. We used a blacksmith's hammer and worked...
Put your glass in a clean graphite* crucible. Heat in a furnace until glass pieces all meld together. This should be around 800 degrees C for a long t...
Now you need a furnace big enough to hold your investment in the flask and your glass piece over it. We simply upended the crucibles full of glass ove...
When your investments are cool, remove them from the furnace. Put them somewhere that can get messy. Wear a dust mask so that you don't breathe too mu...
Wash your pieces with soap and water. Use a brush to get into the crevices. If you're lucky like me, you have access to an ultrasonic cleaner. If tha...
If you made anything, be proud! This is a really difficult and time-intensive process. I'd love to see pictures of other people's homemade cast glass...
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