Recycled aluminum – first casting

I’m still tuning the new foundry but it’s working pretty well now.  I did my first real casting with it yesterday.  This was also my first full cycle project.  Design in CAD, Cut in foam on the CNC router, cast in aluminum. I wish the finish was a little nicer.  Next time I’ll take more…

Final assembly

I fired the three pieces one at a time in the kitchen oven.  A couple hours at about 250 to drive out moisture and about 5 hours at 500 fahrenheit.  The bottom section developed a small crack.  This is the only section that didn’t have extra re-bar in it.  I didn’t add the rebar because…

Bodging up a ball mill.

I’ve been thinking about how I’m going to do the refractory lining for the new foundry. Many of the recipes I’ve found on line call for bentonite clay. The bentonite I’ve been able to locate is feed-grade stuff sold at agricultural supply places. It’s small pellets which I assume have to be dried and ground…

Ready for paint.

Haven’t touched this project for a while. Too darn cold and too many other things going on, I guess. Anyway, managed to get back in the shop, finish the welding and get the frame ready for paint.

New Project – foundry 2.0

My old foundry, a gingery style charcoal burner, showed me how much I like casting aluminum. However, it’s messy, burns a lot of charcoal, and the lid was breaking down. So I’m going to build a new one. This time I’m going to build a propane burner and spend a bit more time to make…