Making a hot-wire polystyrene cutter

We found a load of polystyrene in the garage this afternoon, so we decided to make a [hot-wire cutter]( for it. Basically, you take some wire with an ohm or two resistance and pass a few amps of current through it. The wire is held tight and the polystyrene melts as it passes around the wire.

Categorised as Uncategorised Tagged