Theres a handy search button. and PLENTYPLENTYPLENTY of info here on LPF. Search around, youll find what you need.
search and it shall be given to you.
There is a great bluray tutorial on ihacked. Look around chose a color go for something small first and stay away form the 1W 445 until you get more acquainted to lasers. My suggestion is start with a LM317 driven lab style red or a jayrob PH low power bluray build.
Get a 10mW blu-ray 405nm with adjustable focus. It's cheap, you can learn about the basics of focusing, how moving the lens' focal point closre to the diode results in a dot farther and farthre away, or how moving the lens' focal point in front of the diode results in an image closer and closer to the lens.
Also, comes with aixiz 405nm coated, half-threaded blu-ray lens, from what I can tell. This has no effect on you, but might be interesting for others looking for that particular lens...
- There are some LPF specials at the bottom of the page or some other kit options in a different tab. have a look around. Same money, or less, than the ones posted above and higher specs, better experience, good sfter sales care, etc, etc...