CMM questions. O/T

[Tim Johnson]

quote:

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My point is that accuracy of a CMM is assumed to be better than it actually is and that very few people will doubt the results and double check themselves by using another method such as a surface plate.

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I quite often will torque our inspector's jaw by throwing parts on the rock after he's rejected them off his cmm. About half the time they are good and I have to show him the real way to inspect the feature (again). Someday he'll learn though, he's only been inspecting for ten years or so...

[Thee Dragracer1951]

Gawd ain't it great?

And all this time I thought it was just me....

[Guest CNC Apps Guy 1]

What's that saying???

 

Those that can't abide by the rules enforce them.

[Guest]

nah James,

 

When it comes to QC, those who can't do it, critique those who can

 

 

Anyone ever notice that "most" inspectors are failed machinist?

 

[Thee Dragracer1951]

When I was in QC, I made it a point to not be the cop. But to be an education function so to speak.

Man...that was a long time ago.

[Tim Martinez]

quote:

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What's that saying???

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We put the K back in Kuality!!!

[Guest CNC Apps Guy 1]

ROFL @ Tim!!!

[Thee Dragracer1951]

I have a sign in my Inspection dept that says

"Mil TFD-41 will apply"

 

Make It Like The F'n Drawing for once.....

[Guest]

have worked with some top notch inspectors in my time but one still has to remember they need to find something wrong with the part to feel they are doing something.

its human nature

 

dang if we could just take that out of the equasion we might be able to make some money. lol.

 

doug

[Guest]

Inspect to reject

 

That's what they call it

 

[Thee Dragracer1951]

Interesting stuff.

Nick Moffitt from Verisurf was in my little tightly packed shop this morning and he's got some good stuff....

I think his software (which is pretty kewl I might add...) and an arm will do what I need pretty easily.

I also think I'm going to need a CMM to keep the eye candy guys happy.

I think I'll be adding one to my shop in the near future.

I understand it will write probing routines for my horisontal as well.

Good stuff.

[c-hook]

At our shop we have a 20 year old Zeiss that works considerably well, and it's relatively easy to use, and it's accurate. About a year ago, we decided to either retrofit the zeiss with newer hardware and software or buy a new CMM. So we opted to get a new Brown & Sharp with articulating probe head and PCDIMIS software. I gotta say, I haven't been convinced that the B&S is all what it's cracked up to be. I've been using the zeiss for several years, and I have a good understanding on alignments and concepts with CMM's, but it seems that the B&S isn't very consistent when it come to repeatability. I can set up a and check the same part and get numbers that vary .005" or worse, where as the zeiss will repeat withing .0001......easily and consistently. It's not very reassuring to the machinist when we're trying to hold +/- .0003 diameter with a .002" true position.

[Guest]

good ta hear c-hook

ours is on the way and it aint 20 years old

 

brand spanken new

 

thanks for the vote of confidence.

 

doug

[Don S at Barefoot CNC South]

quote:

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Interesting stuff.

Nick Moffitt from Verisurf was in my little tightly packed shop this morning and he's got some good stuff....

I think his software (which is pretty kewl I might add...) and an arm will do what I need pretty easily.

I also think I'm going to need a CMM to keep the eye candy guys happy.

I think I'll be adding one to my shop in the near future.

I understand it will write probing routines for my horisontal as well.

Good stuff.

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Jim I told ya to check out Verisurf.

 

Tim I should start getting a comision

[Tim Martinez]

You and me both, dude. Thanks for the help. We really appreciate it.

[boneheaded]

we have one about 5 years old and when the printer went we had to get one off ebay. it uses the old dot printer and box of preforated paper. brown+ dull. good machine $hitty electronics

[Kevangel]

quote:

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Inspect to reject

 

That's what they call it

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One of the best prototype machinists I ever worked with, spent a couple of years as an inspector and he said he Loved it!, cause he "enjoyed bustin peoples balls"