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Old timer in Toledo told me my green sand was too wet for a simple bracket
He said, 'Kid, you're making mud pies, not castings,' and showed me how to squeeze test it right. I used to just go by feel, but now I keep a moisture meter in my kit and aim for 3.5% on jobs like that. Anyone else have a simple tip that fixed a bad habit?
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oliviat175mo ago
Honestly, that bit about making mud pies hits home. I had the same bad habit of eyeballing the sand for way too long. My simple fix was getting a cheap timer and actually using it for mulling. I used to just go until it looked right, which was never the same twice. Now I mull for a solid ten minutes every single batch, no shortcuts. The difference in consistency is night and day, and my scrap rate dropped big time.
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casey165mo ago
Ever just forget to temper your sand at all? I got so focused on the pattern once I rammed up a whole flask with bone dry sand. Shook out the worst looking shell you ever saw, all crumbly edges. Now I keep a spray bottle of water right on the muller. Two quick mists while it's running, every time. It's stupid simple but it saves the whole batch.
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kim_west5mo ago
Oh man, I feel this in my bones. I used to be so bad about tempering I once tried to "fix" a dry batch by dumping a whole bucket of water right into the sand pile on the floor. Worst mess you ever saw, looked like someone melted a chocolate cake and then tried to make a sandcastle out of it. Idk why I thought that would work, but I was just so frustrated. The spray bottle trick is genius though, I might have to steal that. My current system is basically just me apologizing to the sand while I mix it.
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