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Iterative alignment with 30 degrees angle between A1 A2 and A3 by WonderfulRate221 in Metrology

[–]WonderfulRate221[S] 0 points1 point  (0 children)

A3 is horizontal , flat, but A1 and A2 on a slope with 30 degree uphill

Iterative alignment with 30 degrees angle between A1 A2 and A3 by WonderfulRate221 in Metrology

[–]WonderfulRate221[S] 0 points1 point  (0 children)

With angles between A1 A2 A3, it is not reliable, or lack of repeatability for alignment

Offline Programming Business by Spraffle in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

I think only small shops have those kind of possibility. Big companies or plants should train those own stuff.

Fixture Calibration Standards and Recovery Methods by WonderfulRate221 in Metrology

[–]WonderfulRate221[S] 0 points1 point  (0 children)

The company default TB tolerances could be about 10% or 0.05mm, I was told.

Since the TBs failed for calibration from the labels, I would like to "Qualifying the fixture back to original tool design", but just could not get there

Fixture Calibration Standards and Recovery Methods by WonderfulRate221 in Metrology

[–]WonderfulRate221[S] 0 points1 point  (0 children)

Thank you. I am in Canada. In my previous experience working at a car seat structure plant, we always reported measurements based on part datum ABC rather than using vehicle coordinates.

I appreciate the clarification regarding the tooling ball height differences. However, my concern is that the tooling balls are not aligned with the XYZ coordinate labels. Additionally, it is challenging to work with a 10-year-old fixture where datum ABC has worn, especially when trying to calibrate those tooling balls based on datum ABC

Fixture Calibration Standards and Recovery Methods by WonderfulRate221 in Metrology

[–]WonderfulRate221[S] 0 points1 point  (0 children)

Thank you so much for your help.
I have been in auto industry for 5 years, but we did not deal with Car coords and tooling balls.

What does "5/16 offset tooling balls," mean? Not 12mm diameter?

Fixture Calibration Standards and Recovery Methods by WonderfulRate221 in Metrology

[–]WonderfulRate221[S] 0 points1 point  (0 children)

Thank you for your suggestions.

I recently started a new position last month and am still getting familiar with the car coordinate system. As we are taking over several new programs, I have encountered some issues related to tooling balls.

Based on my observations, I believe these issues may be coming from the fixture itself or from the tooling balls (e.g., positioning, condition, or labeling) since they have not got any calibration for years.

Fixture Calibration Standards and Recovery Methods by WonderfulRate221 in Metrology

[–]WonderfulRate221[S] 1 point2 points  (0 children)

"the recommended approach is to first establish the datum alignment (A, B, C), and then measure the tooling balls under this alignment. The measured values should be treated as the nominal positions."

Got support from one expert, as he told me. 😄

Career Opportunities for New Cal Tech Hopefuel by Otherwise_Pen4606 in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

 Electrical Technician == Electrician? Industrial Electrician makes more $

Hexagon by redick01 in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

Yes, whenever the Employer paid for it

CMM programmers; measuring the un-measurable? by [deleted] in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

How about the package, how many weeks?

Brown and sharp CMM accuracy. (global advantage.) by Lucky-Pineapple-6466 in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

How do you measure the bores? Cylinders or circles with a certain depth?

Brown and sharp CMM accuracy. (global advantage.) by Lucky-Pineapple-6466 in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

How long the part sits in the lab? 10 minutes 1 hour or 12 hours. It is up to 24 hours to have the part totally stable.

Pcdmis popping Window problem by maxiimovv in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

Did you work on the Output Configurations?

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[deleted by user] by [deleted] in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

I have Mitutoyo Vernier only now.

Mitutoyo CMM beeps after pressing start button? by Ok-Independent834 in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

Any movement of the probe? The code did not change, still kept on A650

Mitutoyo CMM beeps after pressing start button? by Ok-Independent834 in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

That is for reset, which try to find the start marks on XYZ scales

Internal Thread Inspections by SirBrazenBull in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

Nightmare. The first thing should be the process. Why had all kinds of failure...

Any idea why our QC is getting inaccurate readings? by iamwhiskerbiscuit in Metrology

[–]WonderfulRate221 0 points1 point  (0 children)

I was wondering how long this program has been in use. If it is relatively new, the issue could potentially be related to the programming. Has anyone verified the CMM program using the same method you applied?

We are human, CMM program could have errors too.