Re: gEDA-user: homebrew UV photoplotter for direct exposing of photo-etch-resist on laminate

[Dave McGuire <mcguire@xxxxxxxxxxxxx>]

On 6/21/10 5:36 PM, DJ Delorie wrote:
> Having done both TT and UV, I can say that UV is much more precise.  I
> can do 12 or maybe 10 mil lines with TT reliably.  With UV I can do 8
> easily, and down to 5 with care.  UV is more steps, but once the
> chemicals are mixed and stored, the "effort" is just to soak them in
> the right tanks for the right amount of time.
> 
> I also have many mis-starts with TT, causing me to re-print and start
> again.  I almost never have these with UV.  However, I have some
> press-n-peel I've yet to try to see if that solves that problem.

  Are you talking about UV exposure through transparency, or did you use
a photoplotter?

          -Dave

-- 
Dave McGuire
Port Charlotte, FL


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