DIY hot wire cutter
This step-by-step video will show you how to build a DIY hot wire cutter that is able to slice through cardboard, foam and even plexiglass. This project is pretty simple and it will require a little effort and great precision to do it right.
This hot wire cutter works by a wire, kanthal or often nichrome wire, that is heated via electrical resistance. When the wire reaches higher temperature it slices through the material without particular efforts. In fact, it melts them just in advance of contact.
Check it out!