Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [Homebrew_PCBs] UV LED box

From: Adam Seychell <a_seychell@...>
Date: 2008-06-12

DJ Delorie wrote:
>
> Or just expose it with a step gauge and read the step number. The
> film says what step number it needs, just expose once and adjust the
> exposure according to the step number. For $7 it doesn't pay to do it
> the hard way.

$7 !, damn last time I priced a step gauge I was quoted some exorbitant
number like AU$150. I'm pretty sure me and the sales guy on the phone
were talking about the same thing.
I have to agree , for $7 my method isn't worth the trouble.
I found that site you mentioned http://www.stouffer.net
Wow, they make many dozens of these gauges.
Did you get the uncalibrated 21 step transmisive guide (part # T2115)
$6.10 ?
I think that probably best all round choice, even though 21 steps is
probably more than needed.
If they send it in a standard envelope then I guess postage worldwide
would be cheap too.