Here are a few pictures of my go to Books for formulas and info.
They are Mostly (old School stuff) .
They cover a lot of stuff like this.
It even has a Mathematical Formula for concrete strength.
This is why I have been tinkering with stuff like Arduino.
Left to right.
Seventh Edition Machinery Handbook, 11th Edition Machinery Handbook, and Tool and Manufacturing Engineers Handbook.
Your projects are interesting.
Beyond my Normal Projects, I have tested the waters of 3D printing,
I have also ventured in Arduino and Rasp-berry Pi
The code is what pulled me in because in work with CN C machine Pro-Gramming.
The things you have done with the gauge is Cool.
I have a few things in mind like this with a Video camera.
What is your goal with this Research and project?