[sudo-discuss] pcb etching materials

[robb]

lol
i'm not keeping anything secret
i've wanted to make open light & sound kits for some time under the banner
of lulzlux
to tack across the lighting market channels pillaging the booty of
profiteers

:)

On Mon, Aug 29, 2016 at 4:46 PM, Jake <jake at spaz.org> wrote:

> this is the first i've heard of your idea.  I would love to help etch
> boards for kits at sudoroom.
>
> i have never done the photoresist method with circuitboards but I bet that
> pre-coated boards like ours which are probably ten or more years old are
> NOT going to work.  that would be my first guess.  second, i don't see any
> good reason to etch them with photoresist, we have much more DIY-friendly
> methods available in sudoroom.
>
> for example the "Toner Transfer method" which is why I have gathered a
> stack of glossy magazine pages in the drawer with the PCB supplies.
> You can read all about that method on the internet, i've used it and it
> works fine, although the devil is in the details.  If you want to try it I
> will certainly help.
>
> And the toner transfer method is exactly what we should be doing to make
> use of flat blank circuitboards which we have tons of.  Alternately we can
> use the CNC machine attached to the computer near the bigTV to carve boards
> like seen in the leftmost of the following pictures:
>
> https://groups.csail.mit.edu/drl/wiki/images/2/2c/ATM0PCB0-t
> hree-ways-med.jpg
>
> all three are the same circuit but the leftmost method achieves results
> with the least quantity of CNC milling to the board.  also it's beautiful.
>
> Seperately, we can very easily make circuits using pyralux (which I have
> plenty of) using our wax printer (which does work) as I did a few weeks
> ago, very easily, as described in this album:
>
> http://imgur.com/gallery/TbzsP
>
> quit keeping your project secret and collaborate with me.
>
> -jake
>
>
> On Sun, 28 Aug 2016, robb wrote:
>
> captain_morgan & i are trying to make some kits to raise revenue for
>> sudoroom but the etching materials we have don't seem compatible on the
>> chemical side (maybe they're expired?).
>>
>> we have boards but the photoresist isn't setting under the uv light so we
>> haven't gotten to the etching phase.
>>
>> does anyone have any good photoresitive material we could use?
>>
>> thx
>>
>>
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