[Noisebridge-discuss] etching circuitboards the easy way, at sudoroom

Jake jake at spaz.org
Sun Jul 31 22:17:01 UTC 2016

it works really well, especially if you bake the wax just right, and avoid 
gaps that are too small (i had trouble with 0.013" gaps but 0.015" were 

keep in mind that since pyralux is as flexible as paper, you can make 
large complex circuits that fit inside containers of any shape by folding 
the circuit after soldering things, or even rolling it up like a carpet.

the obvious things to do include making watches or wristbands or 
wrist-cuff wearables.  You can assemble such a thing and then coat it with 
silicone to waterproof it and give it some extra structure.


On Sun, 31 Jul 2016, Henner Zeller wrote:

> On 30 July 2016 at 15:58, Jake <jake at spaz.org> wrote:
>> Last tuesday at sudoroom I used the Phaser 8560 printer to print circuit
>> patterns onto pyralux material (kapton coated with copper) and then etched
>> them in ferric chloride.
>> http://imgur.com/gallery/TbzsP
>> the result was that I was able to make circuits very quickly and easily,
>> even though it was the first time i did it this way.
> Wow, these turned out beautifully, Jake! Good work. It essentially
> worked as expected.
> This is still on my TODO list, so this just skipped a couple of levels
> and is higher up on the list now :)
> Good to know about the need to give the wax another bake.
> -h
>> if other people want to etch circuits at sudoroom, I can help.  email me if
>> you want to coordinate.
>> The circuit i made was single-sided but you can do multiple layer
>> circuitboards pretty easily, obviously, by putting these back-to-back.
>> if you wanted to be even more advanced, you could use the laser cutter to
>> burn holes in the pyralux (assuming that works) and solder through those
>> holes from layer to layer.
>> also did i mention this material is flexible like paper?  we can make
>> wearables, cylindrical circuits, watches...
>> -jake
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