And here is an other kind of thickness caliper, only one side this time.
The trouble with standard commercial thickness calipers is that, if they may have a stop, it is generally only able to hold an opening.
I was looking for something that would rather hold a closure, so I designed this one.
Here is the reason why, in a few pictures :
A normal person, in order to measure a thickness will close the caliper on the piece to be measured :
and then, will have to open the caliper, like that :
but, damn it, how can I retrieve my measure ?
It's the reason why there is this couple of little knurled nut that can keep the memory of the closure of the caliper.
So you can reclose it, and appreciate the measure :
Here it is.
Last edited by Christophe Mineau; 09-13-2014 at 08:24 AM.
The most common spring loaded calipers are like that :
If you look carefully, the spring tends to open the caliper, and the stop is at the exterior.
Maybe I was not clear enough in my explanations, but it's what I called a stop to keep memory of an opening, and not of a closure.
I mean, once your stop is set, you can only close the caliper and it can come back to the opening when you release it, but obviously, it's not what we need for measuring a wall thickness, we need to open the caliper, before coming back to the measure !
Sorry if my wording is sometimes confusing...
Have all a nice Sunday !
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