Complete instructions for the making of the Mighty Goliath Hotwire Machine. Materials and directions are shown in each step, image notes. See my other instructables for sample work, signs, etc. Creativeman.
Step 1: Additional instruments made with same technique
I have made several instruments like this, namely to use in a class I plan to hold. I think it is a viable art form and is relatively unknown to the general and artistic community. People find it hard to believe you can get such detail in the lettering. Try it, I think you will like it. Disclaimer: IF YOU DON'T UNDERSTAND THE ELECTRICAL WIRING, DO NOT ATTEMPT! GET QUALIFIED ELECTRICIAN TO HELP. I have used one of these machines for 15 years with no problems, not even a broken wire. So if things don't seem to be working right, you have probably done something wrong. A few additional tips: Try to keep temperature as low as possible. You want to melt the foam, not burn it. Use only with adequate ventilation. Some people may be sensitive to the vapors produced. Use care around the wire! It is hot and will burn you. Don't let young children play with it. It is not a toy.
Step 2: Pieces of project needed to constuct instrument.
Most pieces of the instrument assembled together for this instructable. The transformer, dimmer control and wires will be added in the next view. View image notes for a complete explanation of the various parts.
Electrical components needed for the machine. All items are listed in the image notes.
Costs: Electrical cord: $1.25; Transformer: $6.90; Dimmer switch: $4.99 (push on/off type); Nichrome wire: I bought 100 feet for $2.50! Wood parts probably add a dollor or so to costs, same with various mounting screws/hardware. So for between $10 and $20 dollars you can have your own hotwire machine. I have seen these on the web for much more money. This machine will accomplish the same thing. I have made larger machines to be able to cut larger pieces of styrofoam, or EPS foam. I just changed the length of wire, the transformer and the sizes of the wood components, obviously.