This is a bit of a long shot, but so far all of my regular suppliers have been coming up empty.I've got several catalogs offering small self-contained laser sensors that "stripe" a single laser line across a target surface, and generate a map of the height of the surface where the line reflected. So, if you targeted this laser line across a countersunk hole, you could get a perfect cross-section map of the hole, and precise measurement of the hole diameter, countersink depth and slope, etc. But, of course, this only works if you can put the laser line across the diameter of the hole. If you're off-center, with a single laser line, you'll measure what appears to be a smaller hole, and never know it. What I need, and haven't been able to find, is a unit like this that *also* scans multiple lines, or sweeps the single line across a target area. Basically, I need to measure the hole, but I also have to *find* the hole -- my tooling situation prevents me from having the hole placed in front of the sensor in a repeatable fashion. I *could* duplicate the effect I need by mounting one of the single-line scanners on a panning servo and sweeping it across my target area, but that gets kludgey and unreliable, not to mention bulky -- I'm volume limited. I can't believe that no one makes a self-contained sensor like this, but so far no one seems to have anything on the market. Heck, they do it already with supermarket bar-code scanners, why not industrial surface-mapping sensors? My requirements are pretty modest -- maybe 120-150mm range, and a scanning area of around 10mm x 10mm. The hardest requirement is that I need accuracy of around 0.1mm. Anyone recall seeing any likely candidates they could point me toward?