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  1. #1
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    Oct 2010
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    How do I make CAD/CAM size match machined size?

    Greetings! I'm a newbie at this, literally my first post so bear with me...

    I have a Sherline mill, I'm not sure what model.
    I got it working in Mach 3.
    I can move the 3 axis's manually and I've figured out how to reset the x, y and z to zero.
    I have figured out how to load a gcode file and make the mill run it.

    I am using CorelDRAW 12 to make basic shapes.
    I've figured out how to use MeshCAM V3 to create a gcode file.

    My question is - How do I make the same size in CorelDRAW when the shape is machined? I ask this question because I made a simple circle in CorelDRAW that was 1 inch by 1 inch.
    I exported to a .png and imported into MeshCAM. I told MeshCAM that the file was 1 inch by 1 inch.

    I ran the gcode produced in Mach3 and the circle was soooooo small! Nowhere close to an inch!


    Does anyone have a Gcode "Ruler" program that I can run through what will correspond to real inches/mm?

    Also, can anyone share with me the software they use to go from Idea to Gcode?
    Attached Thumbnails Attached Thumbnails 101_1766 (Medium).JPG  

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