Look at this 60W burn...

[jamilm9]

i saw on pl some one got some sand on there galvo mirrors and the laser melted it on.

 

[Cyparagon]

I saw the plume of debris strike the lens and I just cringed. It's one thing with a $5 lens, but CO[sub]2[/sub] lenses are 20 times that. Very neat video. I may have to try some rocks later.

 

[AdamR]

another awesome infrared build from bill did you finish part 3 after?

 

[billg519]

I decided to switch to a different 60W laser for some variety. I got it working, but haven't finished shooting all of the video clips that I want in order to make more videos. I'l be posting more soon onto youtube.

 

[Finger563]

hm, i looked into buying one of those 60W diode arrays/bars.......
*rethinking the decision to wait....*



but really, great job and nice video

 

[Elektrotechniker]

What happens if you move quickly your hand in front of this laser?

 

[Tech_Junkie]

You quickly burn your hand :crackup:

 

[AdamR]

Hand = cut?

 

[Cyparagon]

Nonsense. Skin reflects/disperses most of the IR. Those with NIR burners can attest to that.

 

[Switch]

That's CRAZY!! The knife blade must reach about 1200°C I love how the metal bursts into sparks Are those lenses convex on a single axis to fix the bar shape output?

Nonsense. Skin reflects/disperses most of the IR. Those with NIR burners can attest to that.

Yea but come on...If 0.5% gets absorbed you're gonna feel it.

 

[AdamR]

How is video 3 going bill?

 

[MarioMaster]

That's CRAZY!! The knife blade must reach about 1200°C I love how the metal bursts into sparks Are those lenses convex on a single axis to fix the bar shape output?



Yea but come on...If 0.5% gets absorbed you're gonna feel it.

I put my hand in front of my 60 watt 808nm laser all the time. On low/medium powers it just feels like a gentle warmth. At full power it's just a heat that can get uncomfortable if you stand there for a while. Considering it lights electrical tape on fire without a lens I'd say that's a pretty insignificant power absorbtion

 

[Cyparagon]

It might be more interesting if you had a speck of dirt on your hand.

 

[dar303]

Just don't try that with a 10,6um IR laser... A 16W Synrad, even unfocused, instantly sets fire to anything organic, paint, paper etc. from 3m/10 feet!

 

[samsomiler]

Is that run by a diode or some gas thing?

 

[AdamR]

It's a diode bar.