Right now I’m using a couple of pressure chambers I have made, 2 air compressors and one small vacuum pump for degassing silicone. I don’t degass the materials, I’m doing mostly pressure castings, e.g. I’m casting the urethane in the mold by hand and then put it in the pressure chamber. For degassing silicone I’m using a small vacuum pump and the pressure chambers to put the material in.
I’m thinking about making a small vacuum casting machine (which is working in a different way than pressure casting), with almost no electronics and a few levers. It will work the same way as the ones on the market, but way cheaper then them. The cheapest vacuum casting machine I know starts from 20.000EU…
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