Casting Demo

I think the thing that got me into this hobby in the first place was reading the [amazon_link id=”0960433007″ target=”_blank” ]The charcoal foundry (Build your own metal working shop from scrap)[/amazon_link]. It’s the first of an awesome series that led me to casting aluminum which, somehow, got me into CNC.  I don’t do much casting…

Casting the Cube

I ended up cutting two copies of the foam version because the first had a flaw in the foam.  The second came out almost perfect and I cast it in aluminum.  After cleaning it up on the lathe, I think it looks pretty good.

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.