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Need info on laser mapping and annual calibration of CNC machine

Wes Cisco
I am looking into Pc-Dmis NC. I have read every thread in this sub forum. I have two main question areas left.


Which company(s) perform the laser maping? Cost? "Downtime" for mapping? I realize this will vary from machine to machine and company to company, but at this point any information along these lines would be helpful.

All the same things for annual calibration/certification of a machine that has been so mapped and is being used to cut and inspect product.

TIA
  • We handle all this internally.

    Our maintenance department lasers every NC machine in our shop once per year. If all goes well (no adjustments necessary), this takes less than about 4 hours for "standard" size machines, and up to 8 for our large 3 meter machines.

    For "cmm certification" of the machines running pcdmis NC, we have pcdmis NC programs that do a 10360-2 measurement, measure a ring gage, and do a B89 repeatability test. Since the machine tool is used as a cmm, our quality policies require certification every 6 months, just like our cmm's.
  • Wes,
    Usually we leave CNC certification to the CNC people. Some of our customers use the OEMS, some don't bother with it because they cannot conceive of their machines as not being perfect.
    I will ask around and see if there's any independents around who map machines, there's gotta be some.

    Also, Andy Mears and myself are handling all the NC stuff in our region, so we'll be your applications support.

    - Josh
  • Wes,
    Usually we leave CNC certification to the CNC people. Some of our customers use the OEMS, some don't bother with it because they cannot conceive of their machines as not being perfect.
    I will ask around and see if there's any independents around who map machines, there's gotta be some.

    Also, Andy Mears and myself are handling all the NC stuff in our region, so we'll be your applications support.

    - Josh

    Thanks for the reply Josh. I have reached the conclusion that full report producing inspection on the CNC machine is not practical for our organization. If we had machines dedicated to a specific part or even group of parts, then it might make sense.

    I have learned a lot about the capabilities of the Renishaw probes in some of our CNC machines and we intend to increase our use of them for setups and for machinists to verify some dimensions during and after the run, before removing the part.
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