Here is a simple kit that lets you build an electronic hot wire knife to cut through styrofoam at home. The Hot Wire Knife kit comes with wooden parts, batteries, copper tape, wire, and everything you need to get started. By completing it, you will learn how electricity works and can make fun styrofoam things.
You may also want to see:
Hot Wire Knife
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.