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Subject: Re: [Homebrew_PCBs] UV LED box

From: DJ Delorie <dj@...>
Date: 2008-06-23

DJ Delorie <dj@...> writes:
> Having said that, I was going to run tests with laser printed masks
> too. Hmmm... maybe I'll redo my latest test with a laser printed
> one, on vellum (it's cheaper than laser transparencies).

Still etching, but it looks like it only gives 3 steps of useful
range, vs 8 steps for the inkjet. Under a microscope with
back-lighting, the toner is not as opaque as you'd think.