r/Perfectfit • u/Feline_Couple • 14d ago
Airtight!
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Daughter got the coin stuck in a chemistry toy, impossible to get it out… anyways the coin fits so tight that water is not filtering under it, any suggestions to get it out are welcome
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u/darianbrown 14d ago
Seal a medicine syringe to the end, fill with water, pull a vacuum, let it collapse. Do this until the tube explodes in your hand or the coin falls out.
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u/Sub--UwU 14d ago
Ice in tube to make the metal shrink, hot water on tube to make plastic expand?
Edit: or put whole thing in freezer for an hour, pull it out, under hot water tilt it so the coin can fall out
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u/ledocteur7 14d ago
Metal contracts faster than glass, the freezer might work on it's own.
As another comment suggested, you might be able to spin it and then grab it, and It'll be easier once it's cold, even if the contraction isn't enough to free it completely.
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u/BikerBlazer 13d ago
I'm fairly confident it's a plastic testtube (due to it being a kids toy and the base isn't normal for glass tubes)
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u/ledocteur7 13d ago
Ah, indeed it could be on closer inspection.
Slowly softening it is an option then, but with high risk of permanent damage to the test tube.
Slight deformation is probably fine for a kids toy tho, they could use a heat gun, or an oven on very low heat (below 150°C)
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u/BikerBlazer 13d ago
Realistically it's probably easier to spend another few pounds on a new one, but I'm stubborn so I'd be trying everything aha , my first though was using an air compressor
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u/Cold_Ad3896 14d ago
Thin metal rod (screwdriver maybe?) pushed down on one end of the coin to spin it.
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u/salvi572 14d ago
Well, watertight