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  1. 07-02-2017 #31
    Steel's Avatar
    Lives in London, United Kingdom.
    Steel
    Last Activity: 16-03-2018 Has been a member for 7-8 years. Has a total post count of 53.
    Quote Originally Posted by paulus.v View Post
    Steel, are you still controlling a CNC with the IBM laptop via the parallel port?
    Hi Paulus yes i am, im running rightmark cpu clock utility without that the pulse frequency wont stay stable on 25000 instead it will jump around 2300 to 23900
    Its everything to do with the cpu not the output voltage from the parallel port

    link is here http://www.majorgeeks.com/files/deta...k_utility.html

    if you have a laptop with parallel port that wont run mach 3 at 25000 then run this piece of software and under management setting check box "Run HLT command when os is idle"
    it works for me and i would be interested if it works on other laptops
    Last edited by Steel; 07-02-2017 at 08:16 PM.
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