Ok, I just wanted to try sounding smart so I found some lego measurements that real pros use
The following pics are the best summary of Ldraw and mm measurements
Above 2 pics from Robert Cailliau.eu
Image from brickgun.com (posted on Pinterest)
L Draw units are 1.6mm each
These measurements are what are needed to make Bitbeam, a form of custom made technic beam
Now I need to learn 3d printing!!!!
Slight variations in 3/16 =4.78 but below=5mm
3/32=2.38mm but below 2.5mm
1/8"=3.18mm or 3mm below
7/32"=5.56mm or 5.7 below
7/32=5.7mm to 5.6mm around a 4.8mm stud that dropped to 3.0mm in the tube
3/16 =4.78 but below=5mm
4.8 is the size of the hole so 3/16 went in perfectlySo hopefully I sound smart ha ha! Or confusing as heck