Homebrew PCBs

On Tue, 5 Mar 2013 00:24:02 +0000, you wrote:

>isnt this just ths toner transfer method?

True, the difference is the transfer medium.  Pulsar paper (perhaps
the standard) costs about $1.50 per 8.5 x 11 sheet.  Free leavings
from a sign shop.... priceless.

If it works as well, something to consider, since all you need are
pieces somewhat larger than your board design.

Harvey

>
>maybe i am missong something but isnt this the same
>method as is widley used?
>On Mar 4, 2013 10:26 PM, <earlannis@...> wrote:
>
>> **
>>
>>
>> On Sun, 03 Mar 2013 21:29:19 -0000
>> "John" jferrell13@...> wrote:
>> >
>> >
>> > I just cannot get the nerve to run the vinyl through my
>> >HP 1102 Laser
>> > printer. It does work well with HP Presentation paper.
>>
>> John,
>>
>> When I run the (Avery A9 900 SUPERCAST OPAQUE 12 YEAR CAST
>> FILMS) paper through the printer it comes out with crisp
>> toner images on the (white, colored or transparent) vinyl.
>> There is no discoloration, shrinkage or wrinkling on the
>> stuff. After ironing the toner (with the paper backing
>> still attached) onto the PCB there is a gold/grey stain
>> left on the vinyl from the copper, and I have wanted to
>> run it through the printer again just to see if I could
>> reuse it again several times. But it is so cheap (24" wide
>> x 30 feet @ $62)that it isn't worth the time to
>> experiment.
>>
>> As I said earlier I get all my 4"x6" material from the
>> offal of a sign shop. Almost ANY sign shop would let you
>> have all you need. There are many brands and my friend
>> suggested that the peel-off shelving vinyl would probably
>> work. I have NOT tried that.
>>
>> Anyway, it is fantastic to peel the vinyl away from the
>> copper and have a perfect image, ready to etch. If you
>> haven't tried the Muriatic acid - Hydrogen Peroxide
>> etchant you will be delighted. It's cheap, clear... you
>> can watch the copper being dissolved... at room
>> temperature... and no bad fumes. Reusable for awhile and
>> easy to dispose.
>>
>> Happy PCBs,
>>
>> Earl
>>
>>  
>>
>
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