Looking to see if anyone out there has blueprints for a model 41. Looking for something with all the dimensions and measurements for machine shop purposes.

I would not think that info is available outside of S&W and highly doubt they would release that. The only way to practically get a blueprint would be to actually get a M41 and make the BP yourself the old fashioned way, with Calipers, Mic's and a pencil.

Even if some of the old factory warranty centers had one, I really doubt they would send you a copy either. I think you are asking for something almost no manufacturing company would ever do.