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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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  • Get scanning probe head dude even if you will barely use scanning. We have one Global with scanning head & it proves useful when tooling or engineering department need to check something but have no CAD or print to go by. And that's about what it does. Happens once every 2-3 years but it happens. The other an old B&S One has only TTP & while it's a great machine along with bug free 2016 software version it's useless when we need to reverse engineer complex contours for the toolroom or print-less engineering department. If you have a budget for new CMM might as well throw in little more dough & get full capability out of it. It's like buying a car. If you have a budget for an economy car it's worth to throw a bit more dough to get something much better & more capable.
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  • Get scanning probe head dude even if you will barely use scanning. We have one Global with scanning head & it proves useful when tooling or engineering department need to check something but have no CAD or print to go by. And that's about what it does. Happens once every 2-3 years but it happens. The other an old B&S One has only TTP & while it's a great machine along with bug free 2016 software version it's useless when we need to reverse engineer complex contours for the toolroom or print-less engineering department. If you have a budget for new CMM might as well throw in little more dough & get full capability out of it. It's like buying a car. If you have a budget for an economy car it's worth to throw a bit more dough to get something much better & more capable.
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