Casting an Aluminum Stool - CNC Metal Casting!

2018-05-10 7

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I was given the chance to try out the X-Carve by . I wanted a project that would really test out the versatility of the machine and this is what I came up with.\r
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I cast a block of off the shelf plaster of paris and dried it out next to my garage heater for two weeks. I wanted to remove as much moisture as I could. Using a 5/8 bit to remove the bulk of the material and a 1/4 spiral upcut bit for the detail, I milled the plaster block to create a mould. This was messy, but very easy to do. I melted the aluminum in my homemade foundry furnace and poured the liquid aluminum into the mould. The air and moisture that was trapped in the plaster caused a few defects in the casting, but it still came out pretty cool.\r
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I then used the X-Carve and a 1/4 spiral downcut bit to cut the legs and brace out of 3/4 baltic birch plywood. I glued thin strips of walnut on to the edges to cover the visible layers. I used a semi gloss spray lacquer on the legs. \r
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I flattened the bottom of the cast top with a belt sander and 120 grit sandpaper. The X-Carve is more than capable milling aluminum and I could have used it for this step as well, but I dont like aluminum shavings so I decided against it.\r
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I used a two part epoxy putty to attach the top to the base and this stool is ready for ion.\r
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More details can be found at and here \r
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—X-Carve & bits - \r
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—Plaster of Paris - \r
—Titebond Glue - \r
—Epoxy Putty - \r
—Spray Lacquer - \r
—Foundry Furnace Video -

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