Measurement junkie softcore porn

(hey, wasn’t there talk at one point about making some sort of measurements SIG or some such?)

I’ve been eyeing this little guy for a while, as a nice compact little home-use tool (overkill for home use? of course! Overkill is what measurement junkies do) but never talked myself into buying it – still not a great time for me to do that, but I wish it were!

https://www.amazon.com/Fowler-Warranty-52-580-030-0-Granite-Flatness/dp/B0058TO0YU/

For those keeping track: yes, that says 0.00005". Aka AA grade/laboratory grade flatness. Any tighter flatness than that and you’d need to control for thermal expansion of the granite. (And it’s Fowler, so I believe them!)

A bargain at anywhere under $100, IMHO, but Amazon regularly has it between $75-$80. But as far as I can tell, it has never been at $65 like it is now. So heads up for those of you that dig this sort of thing. No idea how long the deal will last, but I don’t imagine it’ll return any time soon. (And as an aside: yes, belated birthday presents are happily accepted!) :wink:

Everything is crooked!

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If you need just a small flat accurate surface these are nice. I have a couple I use with test dial indicators (± 0.0001" ±). What they don’t say is how accurate the post is to perpendicular. This usually isn’t an issue as most of the time you’ll measure items in the horizontal X-Y plane by moving the inspected piece laterally.

If measuring vertically, i.e. squareness in Z-axis, over the full range, probably not an issue because height is probably limited to 4"-5" of useful travel.

Go ahead and get one. We can check the accuracy with gauge blocks we have. If you can get ± 0.0003" after all the stack-up of the plate, post, test dial, and gauge blocks in an X-Y-Z envelop that probably exceeds what most people are doing.

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Can we can take it for granite you’ve seen the whole episode?

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https://thumbs.gfycat.com/SlushySimplisticAracari-max-1mb.gif

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Man, hurry up with the new season!

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