New Machine Build CNC Plasma 4x8


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Thread: CNC Plasma 4x8

  1. #1
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    Default CNC Plasma 4x8

    Hello!

    I will present my build of a 4'x8' Plasma table. The mechanics is my own design and the electronics is a kit from CandCNC. It uses a Hypertherm Powermax 45 Plasma cutter.

    I have made a CAD model and building instructions which you can find here:
    https://grabcad.com/library/cnc-plasma-16

    The building instructions is also attached in this post

    CNC Plasma 4x8-plasma_cover_4x8-jpg

    The mechanics consists of fixed AT5 belts, 25mm wide. The step motors is Nema 23 4,4 Nm (620 oz inch). With a 3:1 belt reduction(HTD3M belt) and a 15 tooth pulley on the AT5 belt, the motion is 25 mm per revolution of the step motor. This was the gearing recommended by CandCNC. The gantry weighs around 40 kg (excluding step motors). The linear bearings consists of TBR16 linear rail along the gantry and v-groove bearings for the gantry motion. The CNC software is Mach 3 on a windows xp computer.

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  2. #2
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    Default Re: CNC Plasma 4x8

    Fantastic job Peter.

    Already have my table built but love to see a great set of plans to think about what I could have done better.

    Thanks very much.



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    Default Re: CNC Plasma 4x8

    The frame:

    CNC Plasma 4x8-img_0134-jpg
    CNC Plasma 4x8-img_0930-jpg


    Sidewagons for the gantry:

    CNC Plasma 4x8-img_0933-jpg
    CNC Plasma 4x8-img_0935-jpg
    CNC Plasma 4x8-img_0936-jpg
    CNC Plasma 4x8-img_0938-jpg
    CNC Plasma 4x8-img_0939-jpg



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    Default Re: CNC Plasma 4x8

    The X-axis wagon is attached on the gantry:

    CNC Plasma 4x8-img_0946-jpg
    CNC Plasma 4x8-img_0948-jpg


    The AT5 belt is attached:

    CNC Plasma 4x8-img_0950-jpg
    CNC Plasma 4x8-img_0952-jpg


    The torch holder, mounted on the Z-axis:

    CNC Plasma 4x8-img_1038-jpg
    CNC Plasma 4x8-img_1039-jpg
    CNC Plasma 4x8-img_1040-jpg


    Some testing of the electronics:

    CNC Plasma 4x8-img_0992-jpg



  5. #5
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    Default Re: CNC Plasma 4x8

    Building of table for electronics, plasma etc:

    CNC Plasma 4x8-img_1050-jpg
    CNC Plasma 4x8-img_1051-jpg
    CNC Plasma 4x8-img_1052-jpg


    Almost finished:

    CNC Plasma 4x8-img_1055-jpg
    CNC Plasma 4x8-img_1056-jpg


    magnetic torch breakaway:

    CNC Plasma 4x8-img_1334-jpg


    Limit switches:

    CNC Plasma 4x8-img_1182-jpg
    CNC Plasma 4x8-img_1183-jpg



  6. #6
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    Default Re: CNC Plasma 4x8

    CNC Plasma 4x8-img_1352-jpg
    CNC Plasma 4x8-img_1353-jpg
    CNC Plasma 4x8-img_1356-jpg


    First project, a spider:

    CNC Plasma 4x8-img_1344-jpg


    CNC Plasma 4x8-img_1361-jpg
    CNC Plasma 4x8-img_1362-jpg



  7. #7
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    Default Re: CNC Plasma 4x8

    Video of some cutting.





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