Caliper Jaws

[Unclenick]

There is if you count up to the matching pair of scale graduations on your fingers.

 

[Marco Califo]

I got into trouble that way, playing Black Jack in Reno.
When I got 21.

 

[MarkCO]

Regular calipers measure to 0.001" meaning their accuracy is to the nearest 0.001, so +/- 0.0005"

Anything you add to the caliper has to be to that same standard or it decreases the accuracy and repeatability of the measurement.

SO, if the "printed part" fits to a consistent 0.0005" it is usable. If not, its just extra junk that can distort the measurement.

Depending on what you are doing, this might matter...

The size, and fit of the attachment does not really matter as long as it does not change. I think we are saying the same thing.

But a 3D printed part will have 1. more deformation than steel and 2. change more (about 10 times more) than steel with changed in temperature. So regardless of consistency and fit to the caliper, a 3D printed part for anything precision is really not.