The hot wire gets hot and it cuts.Using this to cut through styrofoam is a skill I obviously do not possess! I couldn’t cut a straight line if my life depended on it! It does heat up extremely fast so if you have to turn your back to it for even a minute, I suggest you turn it off, especially since the stand that comes with it isn’t worth a penny. I would recommend the CNC foam cutting machine if you are looking for something like this; but just understand, that you will need practice in order to accomplish the task you want to do!
How the hot wire CNC foam cutting machine cut foam ?
CNC foam cutting machine