hexagon logo

Horizontal CMM Experience? Looking for info...

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 :/
Parents
  • Two questions:
    Did you verify that your CMM program was outputting good numbers by checking some dimensions through other inspection means?
    Are all three of you using the exact same program?

    If yes and yes...and if 2 out of 3 are saying its good, and the 1 saying they are having issues hasn't been calibrated in 5 years...... then I think we have found our issue.

    To 's point....I hate horizontal CMMs due to the exact issues he has laid out. There is a fine science that must be learned & applied in order to measure properly and accurately.
  • Aerospace and medical are what I deal with every day. They are considered to be "top tier" work...but once you get down to it..its all the same stuff with tighter tolerances and slightly different customer requirements.

    Absolutely do a study on that bar. This is critical to proving your case. And will make you look like a G to your boss.

    Rest assured my friend...the larger and more "reputable" the company is, the more they will TRY to beat you into a corner and make you admit you're wrong even when you know that you are 100% correct. This is done to protect their rep, yes beat you down in pricing (they're a huge company, thats how some of them get that way), and to avoid a corrective action on their end. If they can convince you that they're right even when they're wrong, they save time effort energy and paperwork. Be professional, but DO NOT let this happen.

    I know what you mean...I am 26. Self taught until I got my first legit training 2 years ago. I learned how to program by literally sneaking in my first shop at night when I wasnt supposed to be there and using the CMM/watching youtube videos/studying pre-existing programs until 2am some nights. When you prove your case (I have supreme confidence that you will) your boss will have gained some respect for you and hopefully your customer will give you more work.
Reply
  • Aerospace and medical are what I deal with every day. They are considered to be "top tier" work...but once you get down to it..its all the same stuff with tighter tolerances and slightly different customer requirements.

    Absolutely do a study on that bar. This is critical to proving your case. And will make you look like a G to your boss.

    Rest assured my friend...the larger and more "reputable" the company is, the more they will TRY to beat you into a corner and make you admit you're wrong even when you know that you are 100% correct. This is done to protect their rep, yes beat you down in pricing (they're a huge company, thats how some of them get that way), and to avoid a corrective action on their end. If they can convince you that they're right even when they're wrong, they save time effort energy and paperwork. Be professional, but DO NOT let this happen.

    I know what you mean...I am 26. Self taught until I got my first legit training 2 years ago. I learned how to program by literally sneaking in my first shop at night when I wasnt supposed to be there and using the CMM/watching youtube videos/studying pre-existing programs until 2am some nights. When you prove your case (I have supreme confidence that you will) your boss will have gained some respect for you and hopefully your customer will give you more work.
Children
No Data