Well, created a basic circuit just to check the pieces I have works. So using 26 SWG Nichrome Wire with a length of 5 cm generates enough heat to cut foam. However I need to cut foam around 50 cm wide. Either I should have purchased a 4x D battery holder or thinner wire. So back on ebay to purchase the thinnest 32 SWG wire. Hopefully that will give me what I need, or burn out the wire, |