Question on Accuracy of 1000mm version

X-Carve
1

Hi,

I would like to buy the 1000mm xcarve version, but would like to get a better sense of its accuracy. I have seen a few posts on showing the pcb accuracy, but I would like to compare against what I currently have. I have now a small cnc setup with a good deal of backlash. This is an image I have cut, with the total dimensions 13x13m and 0.5mm endmill.

2015-12-14.jpg2384×4250 2.2 MB

As you can see from this dxf file DXF File (filename is 15x15 but I cut it at 13), The outside rectangles should be square, the loops should be round (now it looks like on side is cut shorter) and the spacing is equal.

I know its a lot to ask, but if someone has a 1000mm and 0.5mm bit, could you try to cut this and post a photo? I could give a few dollars to cover materials.

Or if anyone intuitively can let me know if I should expect the same quality.

Thanks,

Mat

2

I don’t have the bit or materials, but after I got mine dialed in I was able to get .003" accuracy in X and Y, and .001" in Z. I can continually count on .005" accuracy, and that’s usually just an indication to me that I need to make an adjustment and re-calibrate.

3

Thanks Robert, when you say .005", do you mean +/-, so I could be getting up to .01" variations, or all parts are within .005" tolerance?

4

Usually they’re within .005" tolerance. Anything larger than that is usually due to me assuming the bit diameter (1/8" bits are usually +.001/-.005") or pushing the machine to where there’s excessive bit deflection.

5

This is good to know. Thank you.

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