Now that I have a working furnace, it’s time to make something more or less useful with it. My old crucible had to be replaced though as it got punctured and started leaking. I didn’t have too much trouble finding an old discarded fire extinguisher to cut up. I also bent a steel strip in a way so I can easily lift the crucible out of my furnace without damaging the keowool lining.

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Here’s a short clip about making the mold and the casting itself:

This was my very first time making a green sand mold. I had some issues lifting the templates from the green sand, as you can see on the raw piece. So the seam isn’t … well … seamless, but it was nothing a file and some sanding couldn’t fix.

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I’ll leave it at this for the time being. It’s cleaned up pretty nicely, but I really want to spend some more time getting it nice and shiny.

Unfortunately, the spot where the sprue connected to the body of the slingshot tore off. If you look closely, you can actually see that happening in the video. So there is a gap I’ll have to fix eventually. I do have an idea already on how to go about this, but that will be for another time.

Conclusion: I’ll need to work on my mold making skills, but all things considered, not bad at all for a first try!