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IndustryArena Forum > Other Machines > CNC Wire Foam Cutter Machines > NiChrome Diameter for my machine?
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  1. #1
    Join Date
    Mar 2005
    Posts
    269

    NiChrome Diameter for my machine?

    Hey guys, i want to know if exist some kind of formule to know wich are the best hot wire diameter for large machines.

    The machine that im building is to cut 2mt length 30kg/m3 foam. I want to know wich is the right diameter for long life of the wire.

    Thanks in advance.

  2. #2
    Join Date
    Mar 2005
    Posts
    269
    i found at store in my country

    Ø 1.30mm u$s 2.15 + 21% Tax
    Ø 1.50mm u$s 2.90 + 21% Tax
    Ø 1.80mm u$s 4.15 + 21% Tax

  3. #3
    Join Date
    Feb 2008
    Posts
    51
    Quote Originally Posted by samsagaz View Post
    Hey guys, i want to know if exist some kind of formule to know wich are the best hot wire diameter for large machines.

    The machine that im building is to cut 2mt length 30kg/m3 foam. I want to know wich is the right diameter for long life of the wire.

    Thanks in advance.
    I cut parts for $$$ I used to used a controller that offered heat control and never used the heat control portion... I use either a triac or a variac and use A-C on the cutting wire... I have used 22 to 26 ga wires... the thinner the wire the less amp draw BUT to get heat you have to raise the volts...

    With thicker wire you get more amp draw but the voltage required is less...

    On the thicker wire at 1mm per second I use 9.5 volts over 53 inches on a 5 amp transformer with a traic.

    The power supply and control cost under $50 the transformer used is a 24 volt center tap.

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