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Old 09-18-2012, 12:20 PM #49
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Default Re: Playing with my new 40W laser

Very cool video Adrian!

I just got a 40W CO2 laser myself...will post video of it in action soon

Have you tried to foucs your beam at all with some type of fixture? I bought a focusing head along with a dichroic mirror and focusing lens for it...haven't got that far yet though...just powered up the laser and burned a few things (including a small pinhole in my wall...had to see what kinid of range it had)

I will post an update on this when i make some progress...I know it sounds crazy but I want to get this beam to the point that it can cut thin sheet metal...don't worry...safety is always my first concern and I WILL BE CAREFUL as I work on this...wish me luck and any advice is always welcome.

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Old 10-24-2012, 08:03 AM #50
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Default Re: Playing with my new 40W laser

What all do you need for a CO2 setup?

Tube
Power Supply
Water Pump
Air Pump
Control(?)

Anything else you suggest? I'd like to CO2 my CNC machine at some point.
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Old 02-13-2013, 08:01 PM #51
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Default Re: Playing with my new 40W laser

Im. going to mak e a presser foot for mine . much like a jigsaw or a srwing machine..
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Old 02-13-2013, 08:06 PM #52
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Default Re: Playing with my new 40W laser

Aluminum sounds so much cooler in the rest of the world. Americans ruin everything....
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Old 02-14-2013, 08:30 AM #53
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Default Re: Playing with my new 40W laser

Quote:
Originally Posted by Mohrenberg View Post
Aluminum sounds so much cooler in the rest of the world. Americans ruin everything....
Don't get me started on how Americans pronounce "Solder"....
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Old 02-14-2013, 10:23 AM #54
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Default Re: Playing with my new 40W laser

The " L " is silent......


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Old 02-14-2013, 02:35 PM #55
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Default Re: Playing with my new 40W laser

Besides having fun, what types of practical uses would a garage enthusiast use one of these beasts for? I know in industry they are used for cutting intricate patterns, but holy cow that thing is mean.
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Old 02-14-2013, 05:10 PM #56
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Default Re: Playing with my new 40W laser

Burn your name into something like a wine bottle, a tile,a piece of metal, clear plexiglas© or something else a dremel© just wont do.
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Old 02-14-2013, 07:28 PM #57
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Default Re: Playing with my new 40W laser

Al you min ee umm......sa der. XDDD
aloominumnumnum.. sa dah
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Old 02-15-2013, 12:47 AM #58
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Default Re: Playing with my new 40W laser

Sol-der thank you very much

Aluminium sounds cooler

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Old 02-15-2013, 01:04 AM #59
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Default Re: Playing with my new 40W laser

My bad...I see you are down under. would you say
a loo min uhm like USA blokes or al loo min ni uhm like the Londiniums?
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Old 02-15-2013, 01:09 AM #60
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Default Re: Playing with my new 40W laser

Like the Brits mostly, most of our pronounciation is just variations of the British version

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Old 02-15-2013, 01:18 AM #61
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Default Re: Playing with my new 40W laser

Cool. a question about co2 cooling. Can you use antifreeze instead of water?
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Old 02-15-2013, 12:54 PM #62
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Default Re: Playing with my new 40W laser

Quote:
Originally Posted by trussmonkey25 View Post
Cool. a question about co2 cooling. Can you use antifreeze instead of water?
I think sticking just to normal water would be best for the tube .
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Old 02-15-2013, 12:56 PM #63
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Default Re: Playing with my new 40W laser

Quote:
Originally Posted by trussmonkey25 View Post
Cool. a question about co2 cooling. Can you use antifreeze instead of water?
Why would you want to? The laser isn't going to be subject to subzero temperatures, and ethylene glycol has a much lower thermal conductivity than water anyways (water is ~3x better).

Thermal Conductivity Common Liquids
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Old 02-15-2013, 01:14 PM #64
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Default Re: Playing with my new 40W laser

Yes you can use antifreeze, if you think your laser is at risk of the water freezing. Water freezing in the tube is a 100% guaranteed way to crack it. However, I'd stick to plain ol distilled/demineralized water if there isn't a risk of the water freezing.

I wouldn't recommend operating the laser at sub-0C temps either.
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