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I finally gave in and tried the 'wet rag' trick for core box vents
For years I thought it was just an old wives' tale. My foreman kept telling me to lay a damp shop rag over the vent holes before ramming up. Said it stops sand from falling in. Tried it last week on a big gear core. Used a rag I soaked and wrung out. Not a single piece of sand got in the vents. Saved me maybe 20 minutes of cleaning each core box. Why did I fight this for so long? Anyone got other simple tricks like that for core making?
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patricia_carr567mo ago
That's a solid trick, wish I'd known it back when I was doing foundry work. Did you find the rag needed to be a certain type of cloth, or did any old cotton shop rag do the job just fine?
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michael_fisher556mo ago
Yeah, @patricia_carr56, any old rag worked, it's a shame that stuff wasn't shared more.
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ryanburns7mo ago
What kind of foundry work were you in? Honestly, any old cotton rag worked for me, the cheaper the better since they just get ruined. It's a shame those little tricks aren't passed around more on the floor. That kind of knowledge would have saved me so much time and hassle back in the day.
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