Foam Cutter (Hot wire) 12 volt or 240 but 12volts is safer hence preferred - India's open forum for RC flying, aeromodelling, cars and hobby stores
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How to Make an Electric Styrofoam Cutter - Foam Cutter at Home - Simple Styrofoam Hot Wire Cutter - YouTube
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15W 220°C DIY Handheld Electronic Hot Foam Cutter Fast-heating Hot Wire Styrofoam Cutting Pen for AC100~240V - Walmart.com
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