Probe angle selection

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  • kiddo
    replied
    Thanks

    Thanks friends It was a great help

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  • george frick
    replied
    also a very nice feature in pcdmis is auto ph10t. i use it for radial patterns on cylindrical parts. rotate the coordinate system and pc dmis will automatically rotate to the correct angle. very kool!

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  • Guest's Avatar
    Guest replied
    if you cannot find the exact tip angle to match the compound angle the hole is in, then try to use an auto feature (auto circle) with sample hits. the sample hits will measure the surface the hole is in and the computer will tell the cmm to measure the hole normal to that surface which will, if the hole is square to the surface and the surface is not 3D, measure the hole as close to round as possible and not as an elipse on some crazy angle.

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  • Wes Cisco
    replied
    oh that. . .

    Basically there are two ways to control the CMM, manually with the jog box or thru the software. (pc-dmis). Some machines may have the option, but with a B&S machine you can not index the head from the jogbox. PHD 10 or HCU is an optional little box you get from Renishaw so you can manually index the head, just as you can manually move the machine with the jog box. If you do not have this add on you will have to index the head thru the software, which means adding a lot of angles to your probe file you may not need just so you can index to them to check for the best fit tip angle. But of course you can delete any angles you do not need afterwards. HTH

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  • kiddo
    replied
    OOPS..

    Thanks wes...

    I spelled it wrong I didn't mean prehit I meant the PH9 option to find the probe angle.

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  • Wes Cisco
    replied
    PHP?

    By PHP, do you mean prehits for a surface point or other auto feature? If that is the case, they work well, although I do not use them very often, I usually calculate the vectors of 2d angles and type them in. Every time I haved used them they worked well, and there are always numerous posts on this forum from the sheet metal people about the joys of prehits. I am sure if you start a thread about prehits, many with much more extensive experience with them than I possess will answer any and all questions you might have. HTH

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  • kiddo
    replied
    Thanks

    Originally posted by Wes Cisco
    Kiddo, Take a look at my 1st post in response to the Vectors, vectors, vectors thread. HTH
    Thanks Wes:

    How well does the PHP feature in Pc-Dmis work? Is it any good at all?

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  • Wes Cisco
    replied
    well. . .

    Kiddo, Take a look at my 1st post in response to the Vectors, vectors, vectors thread. HTH

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  • kiddo
    started a topic Probe angle selection

    Probe angle selection

    Friends:

    I am new to PC-DMIS, Is there any rule or quick way to determine what probe angle to use to check a compund angled feature ( cylinder,stud) .

    Thanks...

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