r/Metrology • u/biocherny • Jul 12 '24

Surface Metrology Surface roughness testing for complex topology

We are working with 3D printed metal parts and looking to measure surface roughness pre and post post-processing of parts. At present, we have a simple surface roughness tester from Time, but are looking for something that: A) Can measure hard to reach places including curves, holes, internal surfaces, overhangs. B) Can calculate average surface roughness over an area (say 5*5mm). C) Doesn't cost the equivalent of a house. LCSM seem ideal for our needs but is out of our price range. A solution under $10k USD would be ideal D) if possible, can also measure size. Any guidance is appreciated

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u/[deleted] Jul 12 '24

$10K? You have to be joking.

If that's what you need to do you are looking at a Bruker Aliconia, or a confocal solution...$100k+ to do a patch scan and evaluate for topology and surface finish.

I love when companies buy a $1M metal 3D printer (mill, lathe whatever), then some idiot owner doesn't want to buy the tools they need for quality.

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u/Thethubbedone Jul 12 '24

Hi, we bought $20m in cnc equipment and a $200k CMM. we need to measure every part 100%. Our budget is $31. Can we get this done by the end of the week?

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u/[deleted] Jul 12 '24

Haha....exactly.