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  1. #1
    Hi all.
    Purchased a new mill to start small production prototypes and seems to be loosing steps In y axis.was only cutting model board at 1.5mm depth and 300 on feed rate.
    Any advice How to prevent this much appreciated.


  2. #2
    Need more info regarding make/model of machine.
    Are you using Mach3 with it ? if so, what do you have the motor tunings set to ?
    Last edited by EddyCurrent; 02-11-2014 at 04:53 PM.
    Spelling mistakes are not intentional, I only seem to see them some time after I've posted

  3. #3
    Hi thanks for the reply it's running 8.2nm motors steppers. Champion 20v conversation.

  4. #4

  5. #5

  6. #6
    When you say mill are you meaning a router type machine ?

    Numbers seems to be all over the place.

    Is the motor layout like this ?
    1 on Z axis
    1 on Y axis
    2 on X axis (X on one side and A on the other ?)

    If they are then X and A should have the same settings for a start because they have to work in harmony, the velocity and acceleration on A are too high.
    If the machine can't physically achieve the settings you've put it will loose steps
    Last edited by EddyCurrent; 02-11-2014 at 08:40 PM.
    Spelling mistakes are not intentional, I only seem to see them some time after I've posted

  7. #7

  8. #8
    Only one motor on each axis the 4th axis is currently of the machine.what sort of feed should be reasonable for this machine currently only running 200 mm pm

  9. #9
    Are you sure it's loosing steps or just not moving the correct amount.? Those numbers for X & Y suggest 2.5mm pitch running 2000 micro steps which would work out 800 Steps per and your not set to that amount so would be some error.?
    Similair with Z axis and working on same pitch but with 1000 micro step = 400 steps per again your not quite there.!

    Need lot more info to help correctly with setup and what can achieve.

    Voltage the drivers are using. (also make and model of drives)
    Micro stepping set on drives.
    Ballscrew or Lead screw and the pitch. Ie distance traveled for one Revolution.
    Units set in Mach Ie: MM or inch

    What size motors and frame size Ie Nema 23 or 34.? They look like 34's.!

    I see a Laptop in back ground are you using this to run machine via parallel port.?

    Give this info and we can help better thou you should be getting much more than you are now without loosing steps.
    Last edited by JAZZCNC; 02-11-2014 at 10:38 PM.

  10. #10
    Thank you for the reply will update later with more information

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