Laser rifle V.2

[Reallifelaserguns]

My new laser rifle burning newspapers. The red point is the aiming laser. The 3rd paper is too wet to catch on fire, but as you can see dry papers catch on fire almost immediately.

Video of the laser in action:

 

[RedCowboy]

Nice packaging, is that a 20w tube ?
Next you need a beam expander that you can zoom to distance.

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[paul1598419]

Yikes! $450.00 for an "as is" beam expander, even if it is for a CO2 laser sounds like more questions should be asked before pulling the trigger on that one. Interesting CO2 potable build. We've seen a few of these, but they aren't that common. Nice job.

 

[Encap]

Good Job. Nice result. Looks the part--the illusion was worth the effort.

 

[Anthony P]

Search: 7 results found for "beam expander"

Welcome to Cloudray Official Website. Cloudray , a world-leading laser parts and solutions provider, has established a whole series of laser product lines, featured with laser marking/engraving machine & fiber cutting machine parts ,also range from CO2 engraving & cutting machine parts.

www.cloudraylaser.com

Not $450.00

 

[RedCowboy]

Search: 7 results found for "beam expander"

Welcome to Cloudray Official Website. Cloudray , a world-leading laser parts and solutions provider, has established a whole series of laser product lines, featured with laser marking/engraving machine & fiber cutting machine parts ,also range from CO2 engraving & cutting machine parts.

www.cloudraylaser.com

Not $450.00

Those are not made to zoom to distance, made for marking at a set distance. Maybe use the word " Adjustable " along with beam expander in your search and for co2 you will need an adjustable beam expander with ZnSe lenses as normal glass will absorb the energy and shatter.

 

[Reallifelaserguns]

I used 4 ZnSe plano convex lenses trying to make my own beam expander. But the amount of precision involved in making it work is very hard. Also I wonder if making a beam expander is even possible when using only plano convex lenses.

 

[RedCowboy]

You need a concave 1st to expand your beam then a convex to focus it to it's tightest point at your target, the concave will be fixed ( stay put ) and your convex will move fore and aft to adjust your focal point.

 

[Reallifelaserguns]

You need a concave 1st to expand your beam then a convex to focus it to it's tightest point at your target, the concave will be fixed ( stay put ) and your convex will move fore and aft to adjust your focal point.

Thank you very much! I'll take a look into it.

 

[jessieallen1988]

My new laser rifle burning newspapers. The red point is the aiming laser. The 3rd paper is too wet to catch on fire, but as you can see dry papers catch on fire almost immediately.

Video of the laser in action:

This thing is amazing!!! I'm new to lasers & trying to learn how to build one, can I ask where you learned to make yours? & how is the beam invisible?