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Old 01-11-2014, 05:14 AM #1
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Default What can I cut with a 2W 808nm Laser?

So I'm planning to build a laser cutter from scratch. I'm thinking of buying one of these - Industrial 808nm 2000mW Infrared Focusable Laser Diode Module Cutter W TTL | eBay. What can I expect to cut with this?


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Old 01-11-2014, 05:34 AM #2
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Default Re: What can I cut with a 2W 808nm Laser?

Papper maybe with a couple passes or a slow pass.
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Old 01-11-2014, 05:40 AM #3
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Default Re: What can I cut with a 2W 808nm Laser?

Without goggles and proper safety shielding, it will readily cut your retinas. (not joking, get some safety gear!).

To actually answer you, not much. You might be able to cut very thin plastic if you get the optics right and find a plastic that absorbs it well. 15W isn't enough to really cut much, even when focused well.
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Old 01-11-2014, 07:34 AM #4
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Default Re: What can I cut with a 2W 808nm Laser?

Quote:
Originally Posted by Sigurthr View Post
Without goggles and proper safety shielding, it will readily cut your retinas. (not joking, get some safety gear!).

To actually answer you, not much. You might be able to cut very thin plastic if you get the optics right and find a plastic that absorbs it well. 15W isn't enough to really cut much, even when focused well.
Definitely planning to get goggles, safety is a must.

So if i really want to have any kin of cutting power should I be going for a higher or lower wavelength? Or just getting a CO2 Laser?

Thank you both so much for all the help by the way
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Old 01-11-2014, 07:37 AM #5
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Default Re: What can I cut with a 2W 808nm Laser?

If you want to do actual cutting go for a 40W or higher CO2 laser system. It is a LOT easier to shield against, which really improves safety, cheaper to implement in the long run, robust, and powerful. You're not going to get much done with visible or NIR wavelengths.
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Old 01-19-2014, 08:05 AM #6
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Default Re: What can I cut with a 2W 808nm Laser?

Depends on what you are planning to cut. Certain wavelengths excel at different materials. 532 works great on copper for example and 10.6 um from a CO2 works well on steel. No one wavelength is good at one thing. Only thing I've used 808nm for is inducing 'lasing' from another medium like a Nd:YAG.
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Old 01-19-2014, 03:24 PM #7
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Default Re: What can I cut with a 2W 808nm Laser?

I've engraved with 808nm a few times but only on cardboard .

DVD drive laser CNC - YouTube .

1.45W 532nm I have cuts thin colours card with no issues , But for the best cut as others have said co2 lasers are the best , I picked up a 15W co2 laser and PSU for 220USD .
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Old 01-19-2014, 06:04 PM #8
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Default Re: What can I cut with a 2W 808nm Laser?

^^ where could one " pick another one up "
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