Tolerancing

I'm trying to understand how to incorporate the concept of International Tolerance (IT) grades in my metric spline part studio. I tried using a variable to define an IT function, but this didn't work. My attempt was to define an "any" variable named "IT" with value: function(grade, len ) { return 10^(0.2*(grade-1)) * (0.45…

Searching for "Monte Carlo", I get zero hits, so here goes: I want to model the optical performance of an assembly with about 5 parts. The parts could vary, and their relative assembly position could vary. I want to use Monte Carlo methods to generate a large number of STEP files for the complete assembly, and then feed…