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Horizontal CMM Experience? Looking for info...

Mystic_Muffin
Anyone have experience running a horizontal CMM?

We have a customer that's run one of our fixtures and it checked good here and at 3rd party, but they're getting a bunch of Z axis points out.

I know their machine hasn't been calibrated in 5 years, but are there any horizontal CMM quirks that cause sagging in the Z or anything? I know nothing about horizontal setups... The deviation is around .15 in the center and around .35 down the X.... again, only points primarily with a Z approach.

Thanks for the insight.... I'm confused :/
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  • Anyone have experience running a horizontal CMM?

    We have a customer that's run one of our fixtures and it checked good here and at 3rd party, but they're getting a bunch of Z axis points out.

    I know their machine hasn't been calibrated in 5 years, but are there any horizontal CMM quirks that cause sagging in the Z or anything? I know nothing about horizontal setups... The deviation is around .15 in the center and around .35 down the X.... again, only points primarily with a Z approach.

    Thanks for the insight.... I'm confused :/


    Most horizontal machines spec start at .100 µm, sag in the arm is usually compensated for in the comp map but seriously, 5 years? I'd be willing to wager that machine is so far out of square it's not even worth while to measure wood on it. I'd bet a full volume 30 position ball bar is over .500 µm.
  • in reply to Peter Fuller
    but when the customer's operator has them bamboozled into thinking he's a pro and we're amateurs, it's tough to convince someone who knows nothing about CMM that their operator is full of bull cookies.
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