All Optiv laser gurus... I've got a slot feature on a NDT artifact that the vendor EDM sinkered. The dimensions per their C of C states: the length is .030 (in inches), width is .0015 and the depth is .015.
OK... I can check the length and width with the Optiv camera.Results pretty close to theirs. (w/in .0001 or so) BUT.... there's no way to illuminate the depth of the slot with NO combination of top or ring lighting. (ours is a 4 ring/4 segment ring light) So using our CWS (.03mm) I tried a linear scan (see CAD image for reference) Maybe the alignment wasn't directly over the slot? Due to offset more than .001 in X & Y? I don't think so, but in the other method, I used multiple scans over the slot like laces on a football - 5 scans traversing the width of the slot... and basically, I got maybe .003 - .005 however, the gfx analysis was very erratic. Wish I remembered where I saved them to show. The big question for you all.... is the laser too large of a 'beam' to reflect correctly? Or in other words, the laser can't get it's big a$$ down into the .0015 slot? I've tried to thin-pour into some reprorubber to mold it, but it's been a real tough job. Flexbar says it can get into a 4 micron space, but maybe I'm just getting defeated by air trapping. And it's difficult to pour it into the slot to beging with... even pouring it under a microscope! So help! Is the CWS able to check this feature? Thx for any ideas..... 
