pen Tutorial

[jake22]

where can i find the Tutorial on how to build a pen laser made by (RUBERBAND) or ???

 

[Prototype]

http://laserpointerforums.com/f42/pen-style-blu-ray-tutorial-26397.html

And a mini tutorial by Dave:
http://laserpointerforums.com/f65/update-445nm-pen-laser-update-51722-2.html#post727484

 

[jake22]

thanks prototype