What power of laser beam i should use for cutting a 3 mm layer of wood?

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behrouz2007

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I am working on a automation project with PIC.
I prepare driver kit with PIC for controlling two st motors in the XY chart.
My goal is to control a laser beam for cutting any thing possible with above system.
My question is: What power of laser beam i should use for cutting a 3 mm layer of wood?

Added after 3 hours 7 minutes:

Excuse me.
Wrong topic
 

laser wood cutters

I'm afraid it would burn wood more than cut it...
anyway
with a 200mW diode laser you can cut thin dark platic tapes.
so your application should require a 1-10 watt laser ?
 

www.cnczone.com

you need a fixed 1watt carbon dioxide laser {white}

or pulsed will cut 1mm sheet steel if you add first a black cutting line
{some sort of pattern of indelible blackening}

some sort of power ramping is needed and cut thru detection {error correction }

you can make one from an old mirror or two and a 2' or 4' fluresent tube
and exciter coiled tube or two {neon and argon mix dual envilope}
many design's on the net

but be warned
this can slice you in half
if you leave one little gap in the tubes outer baffles and or fail to box it

a green argon laser around 15 watts is the next best thing
but they arent easy to drive

best make your own co2 tube type and add a collimator
 

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