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405nm Ebay Laser Review!

Gun

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delete this
 
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eytyxhs

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Well the output looks like more than 150mW.
50mW of 405nm is not visible in daylight :p
 
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Gun

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Well the output looks like more than 150mW.
50mW of 405nm is not visible in daylight :p
Really!?! Then it must be over 50mW as it is visible in daylight, how come it doesn't burn electrical tape though? :thinking:
 

Gun

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The laser is focused as much as possible and the battery is fully charged, strange...
 

jimmy009

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well, how does the seller say about the power, some Chinese sellers often provide false data of the light
 

jimmy009

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well, how does the seller say about the power, some Chinese sellers often provide false data of the light.
 

Gun

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You've double-posted that question twice and I linked the laser I bought so you could have checked yourself :p. The seller says that the laser outputs 1mW. The warning sticker on the laser also says 1mW.
 
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Antharak

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Did you focus for a tight beam?
To burn with those you want the beam opened up at a distance and then it will come to a point close to the laser like 5cm or so.
 

Gun

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Did you focus for a tight beam?
To burn with those you want the beam opened up at a distance and then it will come to a point close to the laser like 5cm or so.
I'm a bit confused by what you've said :p

I just focused the laser so I got the smallest dot possible. Are you suggesting I make it a very large dot and then hold the tape/match 5cm away?
 

Laik

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So you ordered this instead of the JAD? Aussie customs surprise me sometimes... I got a clearly labelled <200mW laser pen through customs about a week ago. But back when i first got into the hobby i had a cheap <5mW pen (didn't have a label at all) seized.

EDIT: You focus the laser to the smallest dot possible on the object you want to burn
 
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Gun

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No not instead, I explained it in my "Help Me Build My Next Laser" thread. Yeah I was half expecting it not to get through, but it did :).
 

Antharak

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I'm a bit confused by what you've said :p

I just focused the laser so I got the smallest dot possible. Are you suggesting I make it a very large dot and then hold the tape/match 5cm away?
Exactly. the pic of the big dot on the wall is what it should look like.
Then find the spot where the beam crosses itself.
 

Gun

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Exactly. the pic of the big dot on the wall is what it should look like.
Then find the spot where the beam crosses itself.
Oh okay, I'll try that now :).

EDIT: Progress! So I found a smallish sized dot but not as small as the smallest dot where when I hold it about 1cm away from the tape I can put a hole in the tape! I'll keep adjusting the focus and distance that I'm burning at to see if I can get any faster burning.

I probably should note that the seller of this laser claims that this laser should light matches, both via e-mail and on a little piece of paper that came with the laser.
 
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