Those stick-type hot wire cutters from the craft store that plug into the wall aren’t much better than a knife. The actual cleaving of foam is easier, but dragging a long, hot flexible wand ...

Unearthing a rusted pair of barbed wire cutters from a historic battlefield reveals a tool once used by sappers to clear obstacles. Layers of corrosion are carefully removed, restoring the original ...

While there are all sorts of ways to build a hot wire foam cutter, this design from [jasonwinfieldnz] is both interesting and imitable. If you don’t already know it, nichrome wire is nifty stuff ...