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Scanning vs Touch Probes

slipper57
We are enquiring about a new CMM. I have been looking into 'scanning' probing, not so sure if this is what we want?? So, here I am, asking people with knowledge on this type of probing. I am NOT familiar with scan probes at all!
Some, if not a majority, of our inspections may be on sheet metal surfaces, which are NOT the same finish as machined surfaces. I , with no knowledge, would be concerned about the accuracy of scanning probes on an un-even surface.?? I also have heard, with as little of a 'crash' these probes can be problematic?

So, in closing, if you were to purchase a new CMM, would you include the scanning probe? To me it sounds too good to be true? Thanks!
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  • In 35 years of doing sheet metal, I've yet to run across any instance where the INSPECTION of the sheet metal REQUIRED scanning, but we are not production, we are construction (we build the tools that do the stamping). BUT, scanning is useful in other aspects of what I do, but for 30 years, it was TTP scanning, and that is good enough for 99.99999% of what I need to scan. We do have scanning on the new machine we bought a few years ago, and we do use it, but not very often, and generally only for reverse engineering, never for inspection.

    So, yes, include it if they will pay for it, sooner or later it will be useful.
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  • In 35 years of doing sheet metal, I've yet to run across any instance where the INSPECTION of the sheet metal REQUIRED scanning, but we are not production, we are construction (we build the tools that do the stamping). BUT, scanning is useful in other aspects of what I do, but for 30 years, it was TTP scanning, and that is good enough for 99.99999% of what I need to scan. We do have scanning on the new machine we bought a few years ago, and we do use it, but not very often, and generally only for reverse engineering, never for inspection.

    So, yes, include it if they will pay for it, sooner or later it will be useful.
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