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  1. #1
    Join Date
    Jan 2015
    Posts
    9

    MACH3 MachTurn not picking up "Index" on mini lathe

    I recently purchased a Harbor Freight Mini Lathe that someone converted and I am wanting to get a spindle index/tach set up to cut threads, etc.
    It is using Mach3 with a Gecko 540 running through a UCC100.
    I purchased a C3 Index pulse card and wired it in according to the diagram in the description. It has its own 5v power supply. When I turn the spindle, the LED on the card blinks properly. But I can't get it to pick up the index in Mach Turn. I have the output on the card wired to the #1 pin on the Gecko. I have made the Index active in MachTurn on Port 1 Pin 10 (diagram indicates that Pin 1 on Gecko is Pin 10) but when I go to the diagnostic page and roll the spindle around the "Index" light doesn't light up.
    Would anyone have any input on what I may be overlooking?

    Thank you in advance

  2. #2
    Join Date
    Jan 2018
    Posts
    1516
    Quote Originally Posted by cdowns View Post
    I recently purchased a Harbor Freight Mini Lathe that someone converted and I am wanting to get a spindle index/tach set up to cut threads, etc.
    It is using Mach3 with a Gecko 540 running through a UCC100.
    I purchased a C3 Index pulse card and wired it in according to the diagram in the description. It has its own 5v power supply. When I turn the spindle, the LED on the card blinks properly. But I can't get it to pick up the index in Mach Turn. I have the output on the card wired to the #1 pin on the Gecko. I have made the Index active in MachTurn on Port 1 Pin 10 (diagram indicates that Pin 1 on Gecko is Pin 10) but when I go to the diagnostic page and roll the spindle around the "Index" light doesn't light up.
    Would anyone have any input on what I may be overlooking?

    Thank you in advance

    Is there an actual sensor on the Spindle for the card to read?.

  3. #3
    Join Date
    Jan 2015
    Posts
    9

    Re: MACH3 MachTurn not picking up "Index" on mini lathe

    Yes, put an index pulse card with slotted disc for pick up, I have just found out that UC100 doesn't support Index in Mach 3 turn. Looking into a wire around for that now. Any ideas?

  4. #4
    Join Date
    Sep 2005
    Posts
    1195

    Re: MACH3 MachTurn not picking up "Index" on mini lathe

    wait for uccnc turn software released ...

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