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IMAC Scratch build Laser 200

Discussion in 'Giant / Scale Scratch and Kit Build Threads' started by Forgues-Research, Jun 27, 2019.

   
  1. AKNick

    AKNick 150cc

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    Thank You! Are you using NiChrome wire as well? Tony is using 22gauge 0.025", I check my bow and it's the same currently. Just ordered some... it's about $8 for 100ft.
    Do you have a part number on your variac that I can use to look for one? I like that you have adjust the transformer output.
     
  2. Forgues-Research

    Forgues-Research 150cc

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    I am using Nichrome wire, I will check tomorow on its diameter, as for the Variac, don't even look for one like mine way too old but I do like this on on Amazon https://www.amazon.ca/YaeCCC-Transf...jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==
     
    AKNick and pawnshopmike like this.
  3. TonyHallo

    TonyHallo 70cc twin V2

    I use plain carbon steel wire, not nichrome. NiChrome has higher resistance and requires higher voltage.
     
    Forgues-Research and AKNick like this.
  4. BalsaDust

    BalsaDust Moderator

    A piece of MIG welding wire works great as well.
     
    Forgues-Research and AKNick like this.
  5. Forgues-Research

    Forgues-Research 150cc

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    I might have to try the mig wire, since when hot I think nichrome wire will stretch , what do you guys think
     
  6. Forgues-Research

    Forgues-Research 150cc

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    a lot of work here to fit an old laser canopy , maybe I should have made a new one in retrospect, also the 3D printed wheels and tires fitted with a metal insert, and collar made on the lathe, set screw too long need to get shorter ones
     

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  7. TonyHallo

    TonyHallo 70cc twin V2

    Nichrome expands twice that of steel
     
    Forgues-Research likes this.
  8. Snoopy1

    Snoopy1 640cc Uber Pimp

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    Like the wheels, but did you print the tiers as well.
     
  9. Forgues-Research

    Forgues-Research 150cc

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    Ah so I do have to change to mig wire, but how much more current will it take
     
  10. TonyHallo

    TonyHallo 70cc twin V2

    I run 14 volts at 7 amps on .025" wire.
     
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