Electronics > Projects, Designs, and Technical Stuff
Digital Caliper with custom plates?
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q12:
I read everything you wrote guys.  I am thinking on a solution.
Here I measured as close as I could possible with my Mechanical Caliper, the copper elements.
The copper elements are shown on my end digital caliper.
Help from a magnifying glass + light = higher resolution reading.
Everything is measured. Even the obvious sizes like that 0.730
I just gather data for now. I hope i can use it. I am aware how small everything is.

The problem I was confronting with is (surprisingly) not these tiny elements, but the support that they should stay. I realized I don't have too many options to fabricate it as long as I want. I could, but I was thinking on alternatives. And it hit me.

I had a brilliant idea while doing all this measurements:
 - What if I continue with another (same) caliper tail to the existing one?
And I actually purchased already from ebay another best cheap one i found. 3$ gone from my life. Off.
The plan is to unite 2 (same) tails and make the thing longer.
"Estimated delivery Dec 13, 2018 - Jan 24, 2019"  - i'll have to wait for this possible solution to arrive.
In the mean time, I will search for a solution with what i have already and what can be done.

 :box:
Here is the proof i'm serious about it:
rhb:
The expansion coefficient of your substrate is a significant obstacle.  However, I have little doubt that you have the ability to get the fit between the scale pieces to make it work.  But you may run into a snag with the absolute position determination.  Short of comparing the pattern of a 12" scale to a 6" scale the only way to find out is to try.

As has been commented, buying a longer scale is cheaper unless your time is free and your money is *very* limited.

But this is a fine example of why I like this forum so much.  It's a bunch of thoroughly demented, but very smart and mostly very pleasant people.  There is a steady stream of obnoxious, rude and ignorant fools who imagine themselves the smartest person in the world that wander through, but I've observed that they don't last long.

Cheers!  I look forward to seeing how things work out.
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