1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. PLEASE: Read the FORUM RULES BEFORE registering!

    Dismiss Notice

My G0704 CNC Conversion - Down to the Short Rows

Discussion in 'CNC IN THE HOME SHOP' started by angelfj1, Jun 28, 2017.

  1. angelfj1

    angelfj1 Iceland Active User Active Member

    Likes Received:
    8
    Trophy Points:
    18
    City:
    Downingtown
    State:
    Pennsylvania

    -Return to Top-

    Lately I'm making significant progress.
    This conversion is a Hoss-type.
    X, Y & Z Axis Ball Screws/Nuts, Mounts and Steppers in place.
    Oiling mods completed and plumbing in place.
    Mach3 installed.
    X, Y Steppers Jogged successfully but motor tuning not completed.
    Z Stepper doesn't move.

    Major Electrical Components
    X, Y Steppers - KL23H2100-50-4B, 4-wire
    Z Stepper - KL34H295-43-8A. 8-wire - connected in bi-polar series mode.
    All three Drivers - KL-5056
    BOB - C10
    X, Y, Z Driver DIP Settings
    1-off
    2-on
    3-on
    4-off
    5-off
    6-off
    7-on
    8-on

    Again, X&Y steppers jog.
    Z does not jog - it doesn't move at all.
    I have wire checked and connections are correct.
    So, I would appreciate some guidance trouble-shooting the Z motor circuit and motor winding connections and driver settings.

    Thanks in advance.
    Frank
     
  2. JimDawson

    JimDawson Global Moderator Staff Member Director

    Likes Received:
    3,785
    Trophy Points:
    113
    City:
    Sandy
    State:
    Oregon

    -Return to Top-

    Mach3 settings correct?
     
  3. jumps4

    jumps4 Global Moderator Staff Member Active Member

    Likes Received:
    181
    Trophy Points:
    63
    City:
    New Port Richey
    State:
    Florida

    -Return to Top-

    Hi Frank
    I would first
    look on the mach3 main screen and make sure "Z inhibit" is not checked.
    Steve
     
  4. angelfj1

    angelfj1 Iceland Active User Active Member

    Likes Received:
    8
    Trophy Points:
    18
    City:
    Downingtown
    State:
    Pennsylvania

    -Return to Top-

    Thank you Jim, but if I knew the answer to that question, I'd be up and running!
    So, what do you suggest.
     
  5. angelfj1

    angelfj1 Iceland Active User Active Member

    Likes Received:
    8
    Trophy Points:
    18
    City:
    Downingtown
    State:
    Pennsylvania

    -Return to Top-

    Thanks Steve! I'll check that.

    Could you comment concerning the Z-Axis stepper winding connections? For Bi-polar, what would be best, series or parallel?
    In my limited experience, the Z-stepper seems to do the least amount of movement, so what would be best, highest torque or highest velocity?

    Frank
     
  6. angelfj1

    angelfj1 Iceland Active User Active Member

    Likes Received:
    8
    Trophy Points:
    18
    City:
    Downingtown
    State:
    Pennsylvania

    -Return to Top-

    Gentlemen, I went back and did a little research. It seems that my DIP SW setting for the KL-5056D drivers is good. So, I started trouble shooting my connections and tried a different set of connections for the drivers where they terminate on the BOB. That fixed the non-responsive Z stepper issue, and its now zipping up and down the column just as happy as could be! In fact all three axes are moving very smoothly. I really don't think the different pins I selected for X, Y, and Z made a difference - they should all work. I probably had a loose connection.

    So, now on to the next steps.

    Re-mount the head.
    Add the limit/homing switches
    Connect the oiler and check it's function

    Thanks for your support.

    Frank
     
    JimDawson likes this.

Share This Page