May 27, 2013 #17 Moistenator 0 Joined Jun 26, 2012 Messages 788 Points 28 You can use common house hold items as a beam stop like Grainde was saying before. I point my 160mW 532nm under a table and sit to the side so that I can admire the beam!
You can use common house hold items as a beam stop like Grainde was saying before. I point my 160mW 532nm under a table and sit to the side so that I can admire the beam!