Table of Content
1 settings being 0v and the rest starting from 9v working up to 30v. I want to cut a lead block by using the hot wire process. The melting point of lead is 330 degrees celcius. With your fire extinguisher handy and your body away from the device, plug it in. Now we're going to attach the wires that carry the 25V current to the cutting wire. We'll use two machine screws as terminal posts.
I made one, with kanthal heating wire I had for vaping and a 10v DC power pack, but I'm having an issue. The foam melts/shrinks too far making it impossible to cut to accurate dimensions. I increased the length of the wire so that it is no longer glowing red, but I have the same issue. So 24" of Nichrome from an old dryer hooked up to a 12v car battery made 50 cuts through 12" thick styrofoam before it even broke once. You can use your multimeter to see if there's any current between the terminals.
All Purpose Foam Coat - #025 PRODUCT DETAILS
Since 1991 we have been manufacturing hot wire cutters and foam cutting machines. We supply hot wire foam sculpting tools, a Crafter’s Hot Knife, two Pro Hot Knives, and a new Industrial Hot Knife. ♥【PRODUCT USAGE】You can cut foam from any angles and craft your own masterpiece, such as Halloween Costumes, Handmade Practice, Even Model Making Lessons by kids at school. ✔【PRODUCT USAGE】You can cut foam from any angle and craft your own masterpiece, such as Halloween Costumes, Handmade Practice, Even Model Making Lessons by kids at school.
Even if you could get the wire that would stay strong enough at the appropriate temperature, the lead would act as a big heat sink and wick heat away fromwhere you want your cut. Even if you could get the wire to cut, the lead would simply fuse together again once the wire had moved on. Foam cutting works because the foam shrinks where the wire cuts it , so even though the melted foam re-hardens, a gap is left where the wire passed through. Insert a ruler or dowel in the tesioning loop and twist it until it seems to be getting a little tight.
CUTTING WIRE
Nibble or cut a hole for the dimmer switch and tape it in. Then connect up all the wiring according to the diagram in the previous step, tape in the transformer, and tape the top on. In the photo, the box has been turned on it's side.

Instead of looping the wire around the bolt simply drill a hole thru the bolt and feed the wire through it. I have not read the other comments yet but I know the guitar string will limit the length of wing blank you can cut. Now to check the closet for my used guitar strings.
var fpw = document.createElement('script');
I read this article in order to learn what kind of power source I needed to make a hot wire foam cutter. Im not sure how long the 25v transformer will last but it is cheap enough to give a try. To make a tensioner for the hot wire I would buy a machine head from the guitar shop/ music store. Designed exactly for tensioning guitar strings it makes tightening the hot wire quick and easy.

Tie a loop in one end of a 3 foot piece of string and hook it under the washer of one of the middle screws. Thread the other end of the string though the opposite leg's hole. Repeat with another string for the other side, but when you tie off the string at the top of the leg this time, make sure you have some tension. Now both of the criss-cross trings should be pretty tight, and there should be some slight tension on the wire too.
Introduction: Hot Wire Foam Cutter
It cuts the styrofoam smoothly and sast, seals the edges clearly, and eeaves No Debris! You can cut the foam coard or foam block from any angle and craft into your desired shape. I really want to make a different box for this project, or buy a project box at Radio Shack. This box was made from 4 cd cases and some packaging tape.
If you’re buying online, be sure to double-check the size for each shoe before ordering. Different brands have different sizing systems, so it’s important to ensure your feet are comfortable in the product you buy. If you have any questions about the product, please feel free to contact us.
A length of two conductor electrical wire with a regular plug on the end. I salvaged mine, but you could use another extention cord if you like. What’s the right tool, glue and/or foam coat for your project? Personal prints, cards and gifts, or reference for artists. If you’re wondering how to get rid of ants in your kitchen, there are a few things you can do….

You’ll be using this product for a long time, so you must ensure you get the one most suited for you. This guide should help make that decision easier by comparing some of the top products on the market today. We spent dozens of hours making all sorts of things under hot knife foam cutter home depot, pushing the limits of what you can use. To rank and compare each product’s capabilities, We also convened a panel of judges to try out each product to decide the easiest and most intuitive to use.
I know this is some old commentary, but I wanted to correct some mis-information. The old-fashioned heavy type of transformer is the kind you can use with a dimmer to control the output. Buy the High-frequency ,switching type of transformer is NOT compatible with messing with the input voltage. Here are some freehand and template-cut shapes to give you an idea of what the tool does. You can of course bevel edges, etc, with a second pass.
Another site suggested using a PC power supply instead of a dimmer switch, etc. I went that route and connected one of the 12V outputs of the power supply to a length of nichrome wire salvaged from an electric heater. The wire did not turn red, but was quite hot enough to make a nice cut through 6 inch foam blocks. Our Freehand Router has a shapeable foam cutting hot wire.
I should have used the 11V tap and varied that or just use the proper transformer. Even a 6V lantern battery straight wired to cutter generated enough heat to slice the foam. Foot Switch allows you to control the Hot wire foam cutterwithout the use of hands (“hands free” operation) and increases both comfort and safety. It is particularly useful, for example, when cutting large polystyrene foam elements, plates, blocks or thinning polystyrene blocks or cutting grooves. Electric styrofoam cutting tool kit comes with a metal bracket bracket.

♥【PREMIUM QUALITY】This foam cutting set is the most cost-effective tool. It allows users to work more easily on advertising words making, art modeling and various foam cutting projects. GOCHANGE foam cutting tool is made of high quality stainless metal and having longer service life. It is an indispensable tool for foam cutting and engraving. 【Smooth and Efficient Cutting】- All hot wire foam cutter tips can heat up to temperature 100℃ within 10s.