Does anyone ever us different numbers for tool, offet, etc?

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    Default Does anyone ever us different numbers for tool, offet, etc?

    Gcode lets you specify which tool you want separately from which tool offset you want. Usually, these two are the same (e.g. M6 T7 G43 H7).

    Does anyone ever really use different numbers for these commands? E.g switch to tool 2 but use the offset for tool 4?

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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    there are occasions where it can be helpful but for the most part it's not common . D comp on the other hand - there are many occasions for needing multiple numbers . Some machines will trip an alarm if the h is different from the tool number , but that can usually be resolved in the parameters



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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    Can you give me a real-world example of using separate tool & offset numbers?

    And what's D-comp?

    Thanks!



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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    I've done it in the past but off hand can't think why , it was a matter of having 2 separate heights . Otherwise ethers no reason to have the numbers different .
    d comp is diameter compensation , complex parts may at times need a different diameter comp with the same tool on the same part



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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    Can you think of a D-comp example? I appreciate it.



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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    if the tool is cutting the part larger or smaller than wanted then you would use diameter compensation . I suggest you read up on g41 and g42 , it should make sense after a bit of reading



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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    I get how G41 & G42 work, but why would you ever write it with a "D" parameter different from the current tool number?



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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    every job has different situations , sometimes one bore for example is coming out to perfect size while another portion of the part isn't coming to nominal size with the use of the same tool , This is where you'd use a separate d comp



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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    Interesting, okay. You wouldn't just specify that with an O word?



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    Default

    Quote Originally Posted by JetForMe View Post
    I get how G41 & G42 work, but why would you ever write it with a "D" parameter different from the current tool number?
    In my situation, the machine doesn't have H & D offsets, it has G & W (geometry/wear), where each G&W are added together
    for one total offset ONLY.
    So for me for each tool used.... T# , G#(tool length) , G[#+30](tool radius)
    Tool length & radius offsets are still called up by using the H & D addresses.



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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    Quote Originally Posted by JetForMe View Post
    Does anyone ever really use different numbers for these commands? E.g switch to tool 2 but use the offset for tool 4?
    hy here are a few examples :
    ... lathe :
    ...... using 16 tools on a turret that handles only 12 posts
    ...... a quad toolholder, that can handle 2 tools towards main spindle and other 2 tools, towards the 2nd spindle
    ...... a normal drill that has also a chamfering attachement
    ...... an u-drill, that also delivers id turning
    ... mill :
    ...... 90 degree chamfer end mill, that can use 2 different diameters ( among it's cone ) in order to chamfer same part
    ...... a drill that also cuts the counterbore
    ...... a 90 degree atachement that has 2 chucks
    ... gauging :
    ...... a probe with non standard linear stilus, but having a cross/plus apearcane ( uses 4 rubies )
    ... operating :
    ...... using same finish tool, with different offsets, for 2 different diameters

    such situations are refered in practice as using a multioffset tool, a combitool, a multi edge tool, a combi holder, etc / kindly

    we are merely at the start of " Internet of Things / Industrial Revolution 4.0 " era : a mix of AI, plastics, human estrangement, powerful non-state actors ...


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    Default Re: Does anyone ever us different numbers for tool, offet, etc?

    Err kitty.... it's a milling forum



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Does anyone ever us different numbers for tool, offet, etc?

Does anyone ever us different numbers for tool, offet, etc?