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Old 03-24-2010, 02:26 AM #1
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Default Help CO2 buy

Hey everyone. im looking to buy my first CO2 laser, with some decent power, minimum 40 watt. any ideas of where is a good place to start? thanks for any help

is this tube any good?
NEW 40W CO2 LASER TUBE CUTTING ENGRAVING WATER-COOLED - eBay (item 390093902848 end time Apr-12-10 06:32:55 PDT)


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Old 03-24-2010, 02:40 AM #2
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Default Re: Help CO2 buy

It good no doubt but you can find them cheaper if you wait and watch the auctions. Dont forget with that tube you will need a water cooling pump, reservoir, radiator and a psu still

IIRC a RF excited 20W just went for ~50 (tube only)
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Old 03-24-2010, 04:00 PM #3
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Default Re: Help CO2 buy

be carefull to the high voltage of the power supply, and remember to buy also the safety goggles OD>7... the safety first of all
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Old 03-24-2010, 09:20 PM #4
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Default Re: Help CO2 buy

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Originally Posted by Arayan View Post
be carefull to the high voltage of the power supply, and remember to buy also the safety goggles OD>7... the safety first of all
The standard clear googles should be fine as long as he dosent point it at metal :P
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Old 04-03-2010, 12:58 PM #5
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Default Re: Help CO2 buy

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Originally Posted by Arayan View Post
be carefull to the high voltage of the power supply, and remember to buy also the safety goggles OD>7... the safety first of all
Actually, your eyes can take a lot more of 10.600nm than the 315-1400nm range because this wavelength is not focused in the eye. OD 5 would probably be good enough. It is far more important if the goggles can stand 40W and not melt down instantly.

A high power high voltage power supply is needed, be carefull with that. Especially because high voltage and water don't mix that well. Buying a complete head would save you a lot of work, but that's also more expensive.
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Old 04-03-2010, 05:34 PM #6
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Default Re: Help CO2 buy

Polycarbonate safety glasses are a good OD10 at this wavelength anyway. You'd have to try to get anything less than 7.
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