This is an extremely beautiful and presice build! I am gelous of all the machining capabilities you guys have.
But how can you get 5W from one NUBM07E? I could hardly get 7.5W from two of them combined... Maybe this LD needs a very good heatsinking, otherwise it looses efficiency getting warm?
Are you planing to make more of these parts, especially copper housings for 12mm modules? Could you machine wider copper housings with 2 or 4 holes for 12mm modules side by side?