Event JSON
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"content": "nostr:nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpq2cle3ztcf9p4sau5zd02zarl6mvkv030s74vc6d8rnez6lwmjhhs32g4j5 Here some pictures of my (very messy) vacuum caster.\nIts basically just a pot with a connection for a vacuum pump tube with a hole in the top. When the metal is ready to pour, the flask is inserted and sealed with a gasket, or as I prefer liquid silicone, where the flanges touch. The top of the flask is left open to have access to the pouring point of the mold, but the investment is slightly porous which means the vacuum tried and pull air through the it.\n\nhttps://treebrary.pone.social/media_attachments/files/113/720/504/405/665/410/original/da4371b6ceeb966f.png\nhttps://treebrary.pone.social/media_attachments/files/113/720/506/076/010/941/original/d2105cacc94af792.png",
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