One of these days I will buy one of those large assemblies, I just wish the beams would all perfectly line up on the output, I could use three which were in perfect alignment, would buy them in a flash if they were.
They can line up pretty good, mounting the diodes from the flat of the backing plate is something I am going to try, but the Gball lenses don't focus to infinity all that well.
some of my other pursuits - bank vaults & safes I worked on before I was disabled and retired - our Maine Coon - Apple II retro computing including driving new ILDA projectors, some of my origami - bible classes and training.