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Old 05-21-2013, 10:20 PM #1
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Default Long Time Lurker.

So I've been lurking for awhile. Gotten a lot of good information. Also I have gotten a lot of good safety questions I had wandered about and they all lead me here way back in the day. Not a first time owner but hey finally created an account.

My purpose in doing so.. saw a laser for sell on here and needed to pm the person.


So my main purpose for lasers is actually to etch metal and the like for people. Kind of a hobby of mine. Haven't stargazed much with the lasers as I've never owned a good green one to really reach out there. But I'd like to change that by building one or buying a decent mW green.

Might get around to talking more on here. And of course show off some of what I have built maybe My builds tend to be rather different due to a larger heatsink so I can run them long enough to etch. But hey they work, haven't exploded, melted the house, and no blindings thankfully.

And that's a little abuse it me. I'd type more but I'm on my phone and it thinks it knows the word I want i often and is wrong just as often.


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Old 05-21-2013, 10:29 PM #2
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Default Re: Long Time Lurker.

Well, welcome to the forum, I hope you find the information you're looking for in here. I see that you are interested in a laser in the BST section. Good luck in finding that special laser that everybody wants. There are a lot of good deals going on at the moment.

Best to you
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Old 05-22-2013, 04:19 AM #3
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Default Re: Long Time Lurker.

Welcome!

Metal etching generally uses a removable coating that is designed to absorb a specific laser wavelength and convert it in to heat to be delivered to the metal substrate to be etched. Metals tend to reflect laser beams and not absorb them. You can overcome the reflectance with a high enough intensity, but you are looking in to multi-kilowatt CO2 systems for CW or q-switched multi-joule systems for pulsed applications. Neither tend to be hobbyist friendly. You can etch thin metal with a properly focused 15W CO2 laser and the right coating.
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Old 05-22-2013, 07:12 AM #4
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Default Re: Long Time Lurker.

No no it's not deep metal etching or anything like that. I use it to etch dark metals rather thinly, as well as other materials. I am familiar with what will reflect the laser as I learned to etch in the school's lab. I know it's odd but it isn't exactly what most people would call etching and the best etching is actually done with chemicals and then using a acid to make layouts which in turn are small microchips. This method creators a very great and detailed etch. No laser needed for that.

Also as I am on the verge of graduating working with graduate in the school's lab to make higher powered lasers isn't uncommon for me.. sorry if I didn't further explain what I meant. Having access to larger lasers which can expand to chemical ones as well is just a fact of university life of which I am thankfull for
. I just haven't gotten much into handheld besides what i use at home for small experiments...

Also one word of advice in any career involving using a laser of anykind in a university will eventually increase costs and an extra 3k a year in supplies blows... same thing with acid metal etching for nano tech degrees.
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Old 05-22-2013, 12:02 PM #5
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Default Re: Long Time Lurker.

to the Forum cmsjr123....

Don't forget to read the FAQs...the Stickies
and the Forum Rules..
http://laserpointerforums.com/tou.htm

If you plan on buying anything on the Forum....
PLEASE read this first...

6 Steps To Prevent You From Getting Scammed

and PLEASE don't forget to read to this....

39 Reasons NOT to Buy From Wicked Lasers

If you do get a Laser or already have one be sure
to get appropriate Laser Safety Goggles/Glasses...

Get Some Safety Goggles Now!

Enjoy your stay...


Jerry
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Old 05-22-2013, 01:40 PM #6
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cmsjr123 cmsjr123 is offline
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Default Re: Long Time Lurker.

Quote:
Originally Posted by lasersbee View Post
to the Forum cmsjr123....

Don't forget to read the FAQs...the Stickies
and the Forum Rules..
http://laserpointerforums.com/tou.htm

If you plan on buying anything on the Forum....
PLEASE read this first...

6 Steps To Prevent You From Getting Scammed

and PLEASE don't forget to read to this....

39 Reasons NOT to Buy From Wicked Lasers

If you do get a Laser or already have one be sure
to get appropriate Laser Safety Goggles/Glasses...

Get Some Safety Goggles Now!

Enjoy your stay...


Jerry
Ah so the basic internet trading and buying etc. Almost the same as the XDA board that im on as well. And i always read the FAQ section. Amost always find something you didnt knowand sometimes disturbing. Best to go in prepared.


Although i am looking to aquire a 445nm laser and am wondering what is a good brand of goggles for those wavelengths. I own other pairs but i try to get goggles best suited to what i am using. Ive been spooked by what we got in the lab at school so i try to be as protected as possible.. i rather like eyesight....
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Old 05-23-2013, 06:26 AM #7
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Default Re: Long Time Lurker.

Welcome to the Forum.

The "Get Some Goggles Now" thread should get you straightened out.

Basically, on a budget, go with the Uvex SCT Orange goggles. They are infinitely better than nothing.

As an intermediate option, Eagle Pair from Survival Lasers are excellent.

The best option though, is to get certified goggles. Personally I use the ARG goggles from OEM Laser Systems.
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Old 05-23-2013, 08:46 PM #8
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Default Re: Long Time Lurker.

Quote:
Originally Posted by InfinitusEquitas View Post
Welcome to the Forum.

The "Get Some Goggles Now" thread should get you straightened out.

Basically, on a budget, go with the Uvex SCT Orange goggles. They are infinitely better than nothing.

As an intermediate option, Eagle Pair from Survival Lasers are excellent.

The best option though, is to get certified goggles. Personally I use the ARG goggles from OEM Laser Systems.
I only purchase certified. Just like my goggles to fit each laser. No excuse if a laser is always attached to its own pair of lenses. No need to go hunting for them.
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