Devilsbane wrote: » Thats fine. My birthday is also coming up. So I'll buy you one of those if you buy me the latest souped up Alienware. Deal?
knwminus wrote: » No. But I will expect you to honor you end of our non existent deal. On another note, I love the way the site says it is not a toy but then says owning one is pretty cool. I want one so bad.
Devilsbane wrote: » What would be the purpose of one of these? (and yes, I kind of want one now too lol) I'll let you reconsider the deal. 6 months ago when I was bored and put one together it was only like $5,000. I don't think that is asking too much.
eMeS wrote: » You'll put your eye out. MS
tiersten wrote: » If you're insane enough to actually buy this then get the correct safety goggles that will block the wavelength of light that this thing outputs. Don't use it when others are around either and lock it up when you're not burning holes into things.
Beam diameter and beam divergences are two of the most important technical specifications to consider when choosing a laser. Obviously beam diameter is just the diameter of a laser beam, measured in millimeters. Beam divergence measures how much the laser beam expands per meter. For example, a laser with a beam divergence of 1.0mRad will have a beam that expands 1.0mm per meter. How do these two specs relate to each other? and more importantly, why does it matter? It all comes down to how small the end "spot"(the diameter size of your leaser beam) is at certain distances. This is important because you want to point far, far away and because you want to burn stuff, lots of stuff. Common senses tell us that if a laser beam diameter is small, it can go further and burn with more power than if it is big. Ideally, we want to have small beam diameter at aperture AND small beam divergence.
