Hot wire foam cutter power supply design.
Nichrome hot wire cutter.
There are two readily available types of wire nichrome a nichrome c.
The tension factor.
The answer is a hot foam cutter which uses a heated wire to slice through the foam.
Nichrome is wound in coils to a certain electrical resistance and current is passed through it to produce heat.
Nichrome wire is the optimal wire choice for foam cutters for a variety of reasons but particularly because it is resistant against corrosion and oxidation at very high temperature.
Larger diameter wires are also used for very long cutters such as 8 or 10 feet.
These cutters are expensive to buy but you can build your own inexpensive hot foam cutter that uses an automotive battery charger as a power supply.
It has high corrosion resistant and melting point hence it is used in electric appliances and tools.
Nichrome wire has high tensile strength and a high melting point.
It s relatively cheap durable and able to be used for a variety of applications.
In this video i will show you how to make a bow polystyrene cutter out of pvc pipe and a household ac power adapter this is a handy little foam slicer if you.
The device works by passing low voltage electricity through a nichrome wire causing the wire to heat up to about 200 c.
Nichrome is an alloy of nickel and chromium.
For the past few years i ve been using a dremel rotary tool to cut the plexiglass which gets messy.
Nichrome c contains 60 nickel 16 chromium 24 iron.
The nichrome cutting wire reaches the temperature of a few hundred celcius degrees in few seconds.
All metals expand with heat so the nichrome wire at cutting temperature also expands and gets longer.
Insert the ends through a hole at one end of each metal.
Make a hot wire foam cutter the hot wire foam cutter is a tool used to cut polystyrene foam and similar types of materials.
Nichrome a contains 80 nickel and 20 chromium.
Acrylic sheet is always a go to for me when building something.
Bend the nichrome wire three inches from each end.
The device consists of a thin metal wire often made of stainless steel or nichrome or a thicker wire preformed into a desired shape which is heated via electrical resistance.
Nichrome hot wire cutter for acrylic.
Type a and type c are the common types of nicr coils.
A 12 piece of 14 gauge nichrome wire requires only 1 9 volts but almost 12 amps.
