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    Joe's Avatar
    Lives in Shropshire, United Kingdom. Last Activity: 28-01-2020 Has been a member for 9-10 years. Has a total post count of 31. Received thanks 1 times, giving thanks to others 1 times.
    I am trying to improve the performance of my mach 3 system machine and after reading the white-paper from Tormach I looked more into the driver test function within mach 3 and how I could improve my PC's performance

    I have attached a copy of the Tormach machine control white paper, which talks about the problems with timing variations that cause problems with machine smoothness and step accuracy especially when using high speeds.

    The system I am using is a dell optiplex 755 pc
    Windows XP 32bit
    Intel celeron CPU 430 @ 1.80GHz
    2 GB of Ram
    80 GB hard drive

    As you can see in the attached picture there is a max variation of between 11-12 us all the time and there is a distinct pattern to the graph which looks like some form of pulse. This shape graph is the same for all kernel speeds and I basically want to try and reduce this to around 3-5 us if at all possible.

    I have tried 2 processors, the current one and also a intel core duo 2.20GHz and both came out with the exact same pulse on the graph. I have replaced the power supply as I thought it may be a smoothness issue there and that made no difference. I have tried 1GB of ram instead of 2 and that also made no difference. I have tried ending all the unnecessary windows processes but that made no difference.

    I am wondering where to go from here? Is there anything else that may be an obvious thing to try and change or replace or is this something that is contained within the system that I can not fix? My next plan was to scope the power supply under load to see if there is anything to be seen there.

    Joe
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Mach 3 Driver Test.jpg 
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ID:	10964   TD31275_Mach3_Controllers.pdf  

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