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

[Patrik D'haeseleer]

You can also get Pyralux with different copper treatments - Rolled-annealed
(RA) or Electro-deposited (ED). One of the two might have better wax
adhesion.

Patrik

On Tue, Aug 2, 2016 at 11:11 AM, <hol at gaskill.com> wrote:

> I wonder if surface prep with some ultra fine grid sandpaper or emery
> cloth would allow the wax to adhere better
>
>
> On 2016-07-31 14:03, Jake wrote:
>
>> the printer is nowhere near accurate enough to reprint exactly the
>> same twice, as you can see in the third image the wax did not line up
>> with the previous printing of the same thing:
>>
>> http://i.imgur.com/TatC012.jpg
>>
>> it turns out the problem was not that the wax wasn't sturdy, but that
>> it did not adhere to the copper until it went through the oven for a
>> minute.
>>
>> On Sun, 31 Jul 2016, Patrik D'haeseleer wrote:
>>
>> Nice! You could also try running the Pyralux through the printer multiple
>>> times to build up a sturdier wax layer. Assuming you can line up the
>>> paper
>>> accurately enough, of course.
>>>
>>> Patrik
>>>
>>> On Jul 30, 2016 3:58 PM, "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.
>>>>
>>>> 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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>>>>
>>>>
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