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  1. #1
    Ok guys I posted something similar to this the other day but the I go about explaining thing isn't the best 😂

    Anyway here goes, I have just moved from linux cnc to mach 3 and the issue I am having is after i have zeroed all the axis and start to mill, the z axis always starts off machining 2mm above my workpiece, I use fusion 360 as cad and cam and when I simulate the tool paths everything looks fine.

    I have calibrated the z axis over and over again and I also tried milling a simple pocket which turned out perfect. Could this be an issue with my "heights" setup in fusion360? I have posted a pic of my height setup.
    Last edited by Richardtweed; 3 Weeks Ago at 01:19 PM. Reason: Spelling error

  2. #2
    I am unable to post pictures for some reason?

  3. #3
    Click image for larger version. 

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  4. #4
    JAZZCNC's Avatar
    Lives in wakefield, United Kingdom. Last Activity: 18 Hours Ago Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 8-9 years. Has a total post count of 6,279. Received thanks 1,035 times, giving thanks to others 46 times.
    Sounds like it's your Cam (G-code) but unfortunately, I don't use F360 so can't help.
    However, if you want to check your moving correct amounts regard steps per then Zero the work Coordinate then goto MDI type G0 Z10 (or any amount you prefer) then measure to see if it moved this amount. Then G0 Z0 and it should go back exactly to point you touch off at.

    If this works then it's your Code.

  5. #5
    Thanks for replying mate, I tried all that before I posted lol, I'm assuming it's a 360 issue but I have been trying for a few days now with no look, stressful is not the word ��

  6. #6
    reelman's Avatar
    Lives in wigan, United Kingdom. Current Activity: Viewing NEW MEMBER: New Member. Has been a member for 3-4 years. Has a total post count of 13.
    Hi Richard youtube is your best mate with this, there are also lots of tutorials there also. hope this helps

  7. #7
    Yes I have learned heaps from YouTube but I am struggling to find a video on this matter

  8. #8
    reelman's Avatar
    Lives in wigan, United Kingdom. Current Activity: Viewing NEW MEMBER: New Member. Has been a member for 3-4 years. Has a total post count of 13.

  9. #9
    DaveL's Avatar
    Lives in Sudbury, Suffolk, United Kingdom. Last Activity: 2 Hours Ago Has been a member for 1-2 years. Has a total post count of 10. Received thanks 2 times, giving thanks to others 1 times.
    I use 360 and the retract height is the height the tool starts at for most operations. If your part has a flat top, you can set the retract lower as there is no danger of hitting the part as the tool is moved to the start of the next cut.

  10. #10
    I will put the kettle on and take a look at that, I have got to sort it as my mrs is not a happy bunny with me putting all my time on this lol

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