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Thread: Z axis problem

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  1. #1
    Hi there, I'm having some weird things going on with the Z on my new machine. I set the tool up to zero on the top of the work surface but when the program is running the tool is about 3mm above. I've run the same on my machine at work and it's fine, any body know what's going on ?

  2. #2
    Kev - your 100% on your g-code (goes down to z zero) - sorry I have to ask...
    Any offsets in your tool tables?


    Sent from my iPhone using Tapatalk

  3. #3
    Yeah I think so everything is set to zero except G54 which reads 41.075mm. I've even set the the gauge block setting to zero
    I must be doing something wrong but I don't know what. But as I've said the program runs ok on my machine at work

  4. #4
    Clive S's Avatar
    Lives in Marple Stockport, United Kingdom. Last Activity: 11 Hours Ago Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 3,333. Received thanks 618 times, giving thanks to others 77 times. Made a monetary donation to the upkeep of the community. Is a beta tester for Machinists Network features.
    Quote Originally Posted by Kev2960 View Post
    Hi there, I'm having some weird things going on with the Z on my new machine. I set the tool up to zero on the top of the work surface but when the program is running the tool is about 3mm above. I've run the same on my machine at work and it's fine, any body know what's going on ?
    Kev It is difficult for people to know how to answer if they have to start looking back through your posts to find out what you have done before or even what machine you have.

    So how about keeping all the posts in one place as that would make it easier to follow. You need to supply more info and the procedure you have used to zero the tool etc. Even a sample of the first 20 lines of the gcode might help.
    ..Clive
    The more you know, The better you know, How little you know

  5. #5
    Quote Originally Posted by Kev2960 View Post
    Hi there, I'm having some weird things going on with the Z on my new machine. I set the tool up to zero on the top of the work surface but when the program is running the tool is about 3mm above. I've run the same on my machine at work and it's fine, any body know what's going on ?
    Router cnc im guessing maybe your router moved or your cutting tool ? i would check your backlash and if all good there then do what i do something like swear a lot and call it names lol... Mach3 ?

  6. #6
    Yep mach 3....I did swear a lot
    Thanks for your reply

  7. #7
    You could calibrate the z axis in mach3, I just cut a part set the tool height to 0 set the cut depth to 19mm but it would only cut 17mm then i figured out it was the z axis calibration in mach3 that needed setting problem fixed !!

  8. #8
    Thanks I'll give that a go,

  9. #9
    Quote Originally Posted by Steel View Post
    You could calibrate the z axis in mach3, I just cut a part set the tool height to 0 set the cut depth to 19mm but it would only cut 17mm then i figured out it was the z axis calibration in mach3 that needed setting problem fixed !!
    I have a chinese 6060 CNC.
    It started to give problems with the Z Axis.
    I eventually found the solution. The motor for Z is coonected to the shaft with a linc with 4 Allen key grub screws. By chance I found that two of the grub screws had never been fully tightened. As soon as did this everything worked perfectly. I suggest you give it a try. Of course this might not be your problem...Good luck Malcolm

  10. #10
    Quote Originally Posted by Malcolm View Post
    I have a chinese 6060 CNC.
    It started to give problems with the Z Axis.
    I eventually found the solution. The motor for Z is coonected to the shaft with a linc with 4 Allen key grub screws. By chance I found that two of the grub screws had never been fully tightened. As soon as did this everything worked perfectly. I suggest you give it a try. Of course this might not be your problem...Good luck Malcolm
    This is the most likely cause.!
    Another would be that that axis is binding or motors are over tuned. Both these things would cause your problem.

    When you say use it at work are you using same this machine or another just like it.?
    If it's this machine are you using same computer at work.?

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