On 6/20/2012 5:32 PM, AK wrote:
> You would need a very high power laser to enable scanning that fast,
> and a very high speed, high power driver. Plus the plastic lenses in
> those units would just melt. Not the right assembly for the job.
>    Why not just print stencils with something like this
> http://www.amazon.com/Cricut-29-0001-Personal-Electronic-Cutting/dp/B000W=
5I9OC
> lay them on the work and spray a light coating of varnish or stain
> overtop on the wood

The time it takes doesn't matter to me, it can take hours and I wouldn't=20
mind, it is also the fun of doing the project and getting it all to work=20
.. Those cricut machines will not work for what I do, the patterns are=20
custom designs and the cricut machines can't do large patterns or use=20
your own designs.

I don't think the laser has to be very high power , I have seen people=20
lighting paper on fire with lasers pulled from old blu ray players ,=20
paper and wood are not far apart in what it takes to leave burn marks. I=20
do not want thick black burns in the wood or to remove any wood, just=20
enough power to turn the wood hit by the beam to change color enough to=20
be able to see the pattern.  The lasers I have used in the past all used=20
glass lenses and a quick search shows the glass lenses are not all that=20
much more costly than plastic ones, so I will be using glass. Drivers=20
are a non issue, I have more than enough skill to build that part of the=20
project. I was hoping someone might know what wavelengths and powers=20
would be best to use.

Mark


--=20
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