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Thread: RND ??

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  1. #1
    Join Date
    Mar 2003
    Posts
    75
    Hello

    Who can explain me Rnd programming through an example?
    What’s the difference between that command and radius programming?
    Why do you use only one value- either X or Z in the block?
    What command is necessary in the following block?

    Many thanks in advance

    Regards
    Spindler

  2. #2
    Join Date
    Jul 2008
    Posts
    921
    Hello Spindler
    The command should not be misused for the circular programming.
    It only exists to chamfer- to create a tangential crossover- It replaced the old command B+ ..
    In the following block, you need to write G1.

    Regards
    Michael

  3. #3
    That’s how it looks like:

    N360 MSG("OUTSIDE FINISHED 2 ")
    N365 T14 D114
    N370 G95 M4=4 S4=3000
    N375 G0 X37 Z2 M1=8 M4=8
    N380 G1 Z-2 F.1
    N385 G1 X34 F.04
    N390 G0 X36.5
    N395 Z-1.4
    N400 G1 G42 X36.1 F.1
    N405 Z-1.8 RND=.2 F.02
    N410 X33.7
    N415 Z-2.4
    N420 X35.98 Z-3.9 RND=.1
    N425 Z-4.9 RND=.7
    N430 X35.3
    N435 Z-5.1
    N440 G0 G40 X60

    The same is also possible with CHF
    Eine Schraube ohne Gewinde ist ein Nagel<br /><br />Grüsse aus dem Harz - InTex<br />

  4. #4
    Join Date
    Oct 2006
    Posts
    3342
    I mean I am not an expert with Sinumerik but in the end it’s the same on all controllers.
    You program a point that you want to chamfer with G01 and approach it. Then you define the chamfer radius on the controller and approach the next point. That only works with most controllers when you entered 2 coordinates- however that has changed now because when a coordinate is missing, then the controller can read out the current position of the non-moving axis.


    That’s also true for the Sinumerik, isn’t it????
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  5. #5
    Join Date
    Jul 2011
    Posts
    39
    hi!
    the RND if for Radius
    and
    CHF is to chamfer at 45 degrees.
    CNC Manual - Read & Download CNC Machine Manuals without Limits on any device
    http://cncmanual.com/

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