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  • CazC1 commented on flywoodkb's instructable Hot wire foam cutter

    Hi! I just saw this video tutorial about how to make a simple and handy foam cutter, and they only use 2x AA 1,5V batteries. It seems a lot cheaper and easier, why? What is the difference if we are using a transformer or not? Is it due to the type of string they use (nichrome wire)? Thanks!

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