Thread: Y axis

  1. #1
    With the help of a very good friend who built his own CNC
    I built one, it's good it jogs up and down perfect, but as soon as I put a G code in and push start, both Y axis do there own thing.More than not the Left Y moves from home but the right one is about 2-3 seconds behind, but this twists the Gantry and it binds. I have to level everything up again
    Any body help please,
    I'm using Mach3 with stepper motors, I'm very new so my knowledge is limited
    Getting desperate.

  2. #2
    Quote Originally Posted by Andyshomecrafts View Post
    With the help of a very good friend who built his own CNC
    I built one, it's good it jogs up and down perfect, but as soon as I put a G code in and push start, both Y axis do there own thing.More than not the Left Y moves from home but the right one is about 2-3 seconds behind, but this twists the Gantry and it binds. I have to level everything up again
    Any body help please,
    I'm using Mach3 with stepper motors, I'm very new so my knowledge is limited
    Getting desperate.
    I made these assumptions

    You have 2 motors driving 2 ballscrews on 1 axis? Those motors are not moving in sync?

    Are the motors driven by 1 stepper driver for both? Or are you running a stepper driver per motor (A cloned axis)?
    http://www.mycncuk.com/threads/10880...60cm-work-area My first CNC build WIP 120cm*80cm

    If you didn't buy it from China the company you bought it from did ;)

  3. #3
    Quote Originally Posted by Andyshomecrafts View Post
    With the help of a very good friend who built his own CNC
    I built one, it's good it jogs up and down perfect, but as soon as I put a G code in and push start, both Y axis do there own thing.More than not the Left Y moves from home but the right one is about 2-3 seconds behind, but this twists the Gantry and it binds. I have to level everything up again
    Any body help please,
    I'm using Mach3 with stepper motors, I'm very new so my knowledge is limited
    Getting desperate.
    Andy very nice to see you back on the forum and I hope things have improved with the difficulties you have faced.
    It would help if you could put a picture up of the machine with some specs. ie motors, power supply voltage, drivers etc. I will help in any way I can.
    ..Clive
    The more you know, The better you know, How little you know

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