Nichrome Hot Wire Cutter Calculator

A 12 piece of 14 gauge nichrome wire requires only 1 9 volts but almost 12 amps.

Nichrome hot wire cutter calculator.

So lets say we want our hot wire length to be 100mm long which is 0 1 of a metre and we know the total resistance needs to be 3 43 ω. I chose nichrome wire as the example to show how nichrome wire temperature can be calculated using a sp. Nichrome wire nicr is the optimal cutting wire choice for foam cutting equipment for a variety of reasons but particularly because it is resistant against corrosion and oxidation at very high temperature. Nichrome is wound in coils to a certain electrical resistance and current is passed through it to produce heat.

Nichrome c contains 60 nickel 16 chromium 24 iron. Each affects the others. If a bow for foam requires about 1 5 watts per inch of cutting wire and you can supply about for conservative sake about 75 of your rated supply in watts. Larger diameter wires are also used for very long cutters such as 8 or 10 feet.

75 x 12v x 2a 18 watts 18 watts 1 5 watts per inch 12 inches. The tension factor. All metals expand with heat so the nichrome wire at cutting temperature also expands and gets longer. There are two readily available types of wire nichrome a nichrome c.

Set three calculate the fourth. So if we multiply our 3 43 ω by 10 then we should get the resistance we need per metre. Voltage gage length and temperature. There are four variables involved in determining what you need.

This is the first video in my new wire design series. This calculator provides you the above mentioned details for both the nichrome a and nichrome c wire. My design is simple no tables no springs no dials just the raw guts. Use this calculator to find the right nichrome wire size length and power supply for your application.

The nichrome cutting wire reaches the temperature of a few hundred celcius degrees in few seconds. Nichrome wire has high tensile strength and a high melting point. Power source and hot wire. On our nichrome wire page we have added the resistance ohms per metre next to each wire.

Use this online nichrome wire calculator to calculate resistance power current and voltage of the nichrome coil by just providing the length thickness and temperature of the nicr. Easy hot wire cutter guide ac adapter guitar string or nichrome. Nichrome a contains 80 nickel and 20 chromium. 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.