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Talking to an old timer about sand casting yesterday...
Was helping a buddy move some equipment at his shop and this retired foundry guy was there. He told me I was spending too much time on the finish before the pour, said I should focus more on getting the sand mix right. Hit different because he pulled out a scrap piece he'd cast 40 years ago and the surface was smooth as glass. Made me wonder how many of us are overthinking the wrong parts of the process.
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thea_chen27d ago
That 1983 casting is the kind of proof that shuts down all the arguments. My uncle had an old timer tell him the same thing about his sand prep, and he started weighing his clay and water exactly every time. Took him from a 60% success rate to like 95% in a month. The finish work after the pour is way easier when the sand is right, you barely have to grind anything. YouTube makes it look like the magic is in the pattern prep but really its the mud. I bet half the inclusions people get are from bad sand, not bad patterns.
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ben40227d ago
The other day I spent three hours polishing a pattern that ended up with a little sand inclusion anyway. So that old timer's advice hits a little too close to home for me. I guess my granddad was right when he said I spend more time making things look pretty than making them work. Maybe I should listen to the guy who can still pull out a smooth casting from 1983 instead of trusting my YouTube tutorials. At least now I have an excuse for my next messy pour, right?
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