G Code Turning CSS & IPR
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  1. #1
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    Default G Code Turning CSS & IPR

    So from my understanding, G94,G95,G96, and G97 are all modal commands and can be cancelled by one another. My question is when I call out a G96 will it automatically know to activate IPR? Theoretically if I call out a G96 and then a G95 in the next line for IPR it is going to cancel my CSS. This is on a Sinumerick 840D controller.

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    I have no idea about your control, therefore will make a general comment.

    Based on similarity in functionality, G codes are arranged in different groups.
    At any point of time, one code from each group remains active, till another code from the SAME group is commanded.
    Please look into the control manual to know about the groups.
    (Not talking about non-modal G codes)

    Feedrate and rpm are independent things.
    Feed per minute and feed per revolution belong to a particular group.
    Constant rpm and CSS belong to ANOTHER group.

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    G94 and G95 are usually used in milling machines. Lathes usually use G98 and G99.
    G96 is cutting speed in surface feet per minute. G99 needs to be called if you want to use IPR feed. Then you need to call a feedrate, for example F0.008 which means 0.008 inches per revolution.

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    Quote Originally Posted by Fancuku View Post
    G94 and G95 are usually used in milling machines. Lathes usually use G98 and G99.
    Only on non-standard, Fanuc-style controls.

    Real controls use G96 and 97, 94 and 95 and yes, they can be mixed without cancelling each other.

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    Lol
    So, what is a real control? Enlighten me.

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    I know my yasnac control works as you have described. It's a older L3 control but but those g commands work the same. Also G50 in mine clamps max rpm.

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    Quote Originally Posted by Fancuku View Post
    Lol
    So, what is a real control? Enlighten me.
    Anything made in the US. We invented that shit, you know. And we had standards, which we followed.

    Jap crap is all over the map. I find it entertaining that there are so many "patriots" here who fawn over upside-down and backwards jap controls.


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