3d crystal laser engraving machine-www.chinatopgift.com

[kpreston69]

I am tech savey but I don't understand how a laser can be computed to burn at the right spot.

A laser will continue infanately unless it hits an impassible surface or fades with power.

I could not find any information as the real reason it fractures the crystal at just the desired point and not past or before it hit's it's mark.

Anyone can explain that I would really love to know. Seriously.

Is it a matter of regulating the voltage lol?

[pnuemagger]

@kpreston69... Lasers do not "continue infinitely". Only a collimated laser (made into a straight beam) travels together indefinitely. The only unique qualities about laser light is that it's a very specific spectral wavelength and the light is in-phase. Remember, regular light is made of various combinations of different color wavelengths that are out of phase. Different wavelengths have different refractive indexes and thus light of many wavelengths has no sigle focal point (through a lens).

[pnuemagger]

@kpreston69... So, since laser light can be finitely controlled through lenses (unlike regular light) it can be put into a very straight beam. But it can also be focused to a normal point or cone like regular light too... when a laser is shaped into a beam it's only because lenses were purposefully used to do so. So if you take a lens and change the laser's focal point, you can focus all that power into a small pinpoint at any distance you want... just change the focal point.

[douro20]

I always thought these things worked with a pair of intersecting laser beams, which when they cross one another, heat the crystal at that point enough to create a tiny gas bubble.

[xxdown2businessxx]

would anyopne please tell me where can i buy on of these amazing machines?

and if you know how much they run for?

[dabbour31]

they run over 60 grand

[Ozzah]

@dabbour31 Ironically $60k is cheap relative to some commercial products. Some commercial coffee machines which they use in cafes can cost $250k+ and minilab photo printers can cost $500k+. These are two examples but I'm sure there are stupidly expensive products on practically every street corner ;)

[nazaxprime]

@dabbour31 Ouch. I'm just trying to imagine what could be made to by it to pay for it... I dont think id want to do the standard 3d pic deal... Thats a little trendy for me, and honestly, unless its da vinci I think its a bit wastefull, considering the potential.

Hmm

[aqueen201]

the green laser looks wonderful,fantasitic!!!

[maomao54800]

the green laser beam can penetrate the surface of crystal glass and then go inside,the laser focal point can burn the crystals,the laser subsurface engraving machine can laser any 2d/3d images,characters,graphics into the crystal blocks,