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Inside Digital Calipers
(hackaday.com)
Oh yeah, great tools. The old mechanical ones, though?Just as good. According to people I know, anyway. The cheap digital ones in particular are still great for 3D printing stuff but not necessarily actually as precise as a high-quality old analogue caliper.
Where's my Vernier gang at?!?!
Although my god, even a halfway decent set of dial calipers is extremely satisfying to use.
A magazine dedicated to 3D Printing.