After watching this video.I decided to try to build/mod my first homemade laser. I had another 2 535nm (I dont remember very well) and I dont remember the power although I would guess 150mw. I bought some high end safety glasses for 420nm to 490nm (the laser I'm trying to build is 450nm). I needed help following the video I linked at around 7:50 to about 8:35. I am newer at this and all help would be appreciated. I am going to take many safety precautions as I only have 2 eyes.