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Looking for opinions

I'm not currently at work, so I can't recall the exact model of my probe. I think I'm using the HSPX (?), with the large, magnetic base, maybe 1.75" diameter? I'm sure many, if not all of you have had this happen at least one time, if not many, many more. When you rotate, your probe catches the part, the fixture, or even the side column on the cmm and knocks the probe off. Here's my question. Do you automatically recalibrate, or do you kind of base it off the tolerance of whatever you're checking? I'm just curious how others approach this.

Thank you
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  • Sounds like you have oodles of time in your shop! We run three shifts and barely get 5 minutes in between parts to calibrate. It's one of those new, highly advanced shops with never enough time to do things right, but always enough time to do them over.


    How many CMM machines do you have?
  • I guess it matters what you mean by "falling off". If you physically just drop the tip a very small distance like others have mentioned here, inspecting the tip for damage is probably fine. If the program itself causes the wrist to rotate the tip into anything and it falls off, that I consider a crash. Both scenarios I would prefer not to take the chance and run a verification and make a judgment call. I'm personally responsible for my machines accuracy and I don't want to risk anything. Machinists already have a hard time trusting the CMMs. If they saw my machine crashing with no investigation, trust would be few and far between. Everything I do is for my customer. The machinists and the external customer. I'm sure everything I do is overkill, and I don't expect others to follow my lead, but if I hear anyone complain about machine to machine correlation or machine accuracy, they have no leg to stand on.

    I usually don't share programs I write because I wrote it on the clock so it's now owned by my employer. That's why I gave a detailed description of what I do. I can definitely help you create one if you need the help though!
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  • I guess it matters what you mean by "falling off". If you physically just drop the tip a very small distance like others have mentioned here, inspecting the tip for damage is probably fine. If the program itself causes the wrist to rotate the tip into anything and it falls off, that I consider a crash. Both scenarios I would prefer not to take the chance and run a verification and make a judgment call. I'm personally responsible for my machines accuracy and I don't want to risk anything. Machinists already have a hard time trusting the CMMs. If they saw my machine crashing with no investigation, trust would be few and far between. Everything I do is for my customer. The machinists and the external customer. I'm sure everything I do is overkill, and I don't expect others to follow my lead, but if I hear anyone complain about machine to machine correlation or machine accuracy, they have no leg to stand on.

    I usually don't share programs I write because I wrote it on the clock so it's now owned by my employer. That's why I gave a detailed description of what I do. I can definitely help you create one if you need the help though!
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