[hackerspaces] Laser cutter: Buy or build? Both?

[Matt Goodman]

Think about microscope objectives. They are hella expensive though
On Apr 12, 2012 11:10 PM, "Bryan Bishop" <kanzure at gmail.com> wrote:

> On Fri, Apr 13, 2012 at 12:12 AM, charlie x <charlie at finitemonkeys.com>
> wrote:
> > I do want to go back to building our own with the 40W tube, and we will
> do something with it
> > eventually, well apart from fire it up with just the tube and power
> supply and burning holes
> > in things.
>
> At the risk of risky thread hi-jacking, does anyone have suggestions
> for the optics and lenses on a "nearly submicron" laser cutter? I am
> putting together what will eventually be an open source project
> running LinuxCNC, but I am somewhat shaky on how to make sure I get a
> spot size on the order of 1 to 10 microns (ok, maybe up to 20). Any
> takers ?
>
> - Bryan
> http://heybryan.org/
> 1 512 203 0507
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