Cutting foam is difficult with traditional methods. The best way is with a hot wire. If you read Hackaday, it is a good bet you can figure out how to use electricity to make a wire hot without any hel
Cleankut Floral Foam Cutter
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This package includes one Foam Cutter with two blades. Designed to cut extruded polystyrene (XPS) foam into custom shapes. Includes one narrow, 1.3”
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