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Brandon432 t1_is88kel wrote

Hot knife = wire with electrical current. They sell these.

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Eddie_shoes t1_is8feal wrote

How is this so low down in the comments? As a sailor who has to cut everything from foam to rope, this is absolutely the best answer, and they cost like $20.

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Winjin t1_is9ts4e wrote

I think it's important to note that you need ventilation or do it outside. My friend just burst into the room saying that his eyes sting after cutting styrofoam with a heated knife.

Though he suspects his is faulty and probably gets way too hot, over the suggested temp.

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CharlemagneAdelaar t1_is9x3r6 wrote

I cut Styrofoam for an hour once... for the next few hours I came down with an intense flu that eventually went away.

Hopefully I didn't fry anything terribly important.

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[deleted] t1_isa5tvh wrote

Incredibly important to ventilate. Those fumes are very bad for your lungs.

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Winjin t1_isa9r4z wrote

Yeah, he decided that plugging an extender into an extender and finishing this outside is still better than fire regulations

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Brandon432 t1_isbd5ep wrote

Excellent call out. Styrofoam fumes are bad for the earth and the body.

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