Nichrome Hot Wire Cutter Calculator

Larger diameter wires are also used for very long cutters such as 8 or 10 feet.

Nichrome hot wire cutter calculator.

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. The nichrome cutting wire reaches the temperature of a few hundred celcius degrees in few seconds. The tension factor. This is the first video in my new wire design series.

My design is simple no tables no springs no dials just the raw guts. Nichrome hot wire calculator use this online nichrome hot wire calculator to calculate the total resistance resistance per feet the power required the current required and volts of a nichrome wire with ease. This calculator provides you the above mentioned details for both the nichrome a and nichrome c wire. All metals expand with heat so the nichrome wire at cutting temperature also expands and gets longer.

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. I chose nichrome wire as the example to show how nichrome wire temperature can be calculated using a sp. My power supply is a 12 volt supply rated at 2 amps will it be adequate for a hot wire cutter calculation. 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.

Power source and hot wire. Easy hot wire cutter guide ac adapter guitar string or nichrome. 75 x 12v x 2a 18 watts 18 watts 1 5 watts per inch 12 inches. Nichrome a contains 80 nickel and 20 chromium.

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

So if we multiply our 3 43 ω by 10 then we should get the resistance we need per metre. There are four variables involved in determining what you need. On our nichrome wire page we have added the resistance ohms per metre next to each wire. There are two readily available types of wire nichrome a nichrome c.

Use this calculator to find the right nichrome wire size length and power supply for your application. Nichrome wire has high tensile strength and a high melting point. 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. Set three calculate the fourth.