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    Default RDC6442G & RDWorks - Max speed limitation

    Hello,

    I just converted my laser to a RDC6442G controller and have everything working. The problem I'm having is although I set the max speed of the X and Y to 800mm/s in RDWorks v8 (and confirmed it on the machine by reading back the settings), when I engrave the controller is setting my speed to 200mm/s.

    I'm struggling to figure out where this limitation is coming from.

    Any suggestions would be appreciated.

    Thanks,
    Dave

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    Default Re: RDC6442G & RDWorks - Max speed limitation

    I read the specs on the RDC6442G controller, are you exceeding the 500 KHz of the controller?

    How many pulses does your motor take to travel 800 mm? If it is over 500,000, it will never let you go that fast.

    James L

    Quote Originally Posted by weitzd View Post
    Hello,

    I just converted my laser to a RDC6442G controller and have everything working. The problem I'm having is although I set the max speed of the X and Y to 800mm/s in RDWorks v8 (and confirmed it on the machine by reading back the settings), when I engrave the controller is setting my speed to 200mm/s.

    I'm struggling to figure out where this limitation is coming from.

    Any suggestions would be appreciated.

    Thanks,
    Dave




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    Default Re: RDC6442G & RDWorks - Max speed limitation

    Hello James,

    My step length is 4.8um on both the X and the Y. If I do that math right, I should be able to go 2400mm at 500kHz.

    I'm actually asking for a speed of 450mm/s in the job, but it is getting knocked down to 200mm/s

    Thanks,
    Dave



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    Default Re: RDC6442G & RDWorks - Max speed limitation

    Dave,

    Do you have any other drivers or are the motors directly wired to the controller? I don't know your setup, so I'm working from the strict math.

    Also looking at the RDWorks manual, it could also be a setting in your configuration that limits you.

    Not sure at this point.

    I can't really help further without knowing all the components involved.

    James L


    Quote Originally Posted by weitzd View Post
    Hello James,

    My step length is 4.8um on both the X and the Y. If I do that math right, I should be able to go 2400mm at 500kHz.

    I'm actually asking for a speed of 450mm/s in the job, but it is getting knocked down to 200mm/s

    Thanks,
    Dave




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    Default Re: RDC6442G & RDWorks - Max speed limitation

    Hello James,

    The controller is connected to seperate drivers, one each for the X, Y and Z. They haven't changed, I'm only changing the controller from a 6515/lasercut setup to a 6442/rdworks set-up.

    I believe it's either something I'm missing in the configuration in RDWorks, or there is a hard limitation on the controller board that I need to figure out how to modify.

    On the RDWorks side, I am setting the max speed in the vendor tools configuration section. I don't know if there is any place else to set this.

    Dave



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    Default Re: RDC6442G & RDWorks - Max speed limitation

    Hello Dave,

    Sorry, I really do not know at this point. Maybe someone familiar with the laser will chine in, and be able to help.

    James L



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RDC6442G & RDWorks - Max speed limitation

RDC6442G & RDWorks - Max speed limitation