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Calibration of thread gages

old crone
I am asked to calibrate shop floor ring and thread gages.
I don't think that the CMM is the device to use.
I propose that I have a calibrated set of ring and thread gages in the lab as masters.
And calibrate the floor ones with those.
But I am open to ideas.
Parents
  • Before we had a CMM, were were looking for a way to calibrate/certify threaded ring gages. My boss arranged a meeting with a sales guy from mitutoyo and he was like, "yeah, CMM can calibrate threaded gages all day." We went to check out the Mic trac out of Houston and then visited mitutoyo show room and talked to a application engineer and he was like no. CMM shouldn't and can't be used to check threaded gages. He said the acceptable way is with threaded set plugs and we would probably have a hard time explaining to our customers and auditors that we use a CMM to calibrate gages. Sales guy happened to be off that day we visited and yeah, we didn't buy a CMM to check gages.

    We use the mic trac 4000 to check threaded plugs and threaded set plugs. Set plugs are then used to verify threaded ring gages and adjust if needed.
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  • Before we had a CMM, were were looking for a way to calibrate/certify threaded ring gages. My boss arranged a meeting with a sales guy from mitutoyo and he was like, "yeah, CMM can calibrate threaded gages all day." We went to check out the Mic trac out of Houston and then visited mitutoyo show room and talked to a application engineer and he was like no. CMM shouldn't and can't be used to check threaded gages. He said the acceptable way is with threaded set plugs and we would probably have a hard time explaining to our customers and auditors that we use a CMM to calibrate gages. Sales guy happened to be off that day we visited and yeah, we didn't buy a CMM to check gages.

    We use the mic trac 4000 to check threaded plugs and threaded set plugs. Set plugs are then used to verify threaded ring gages and adjust if needed.
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