etching your own pcbs

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Luka
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etching your own pcbs

Post by Luka » Wed Aug 13, 2008 4:25 am

well i just made my first round using pnp blue and ferric chloride

i followed the tonepad photoessays
here:
etch
pnp transfer

first successful build was some power distro boards

Image

so proud :)

tips for others, dont use immitation sharpies to cover up bad pnp transfers
i tried it on this distro board and it didnt really work. i re-traced it a few broken lines with the psuedo-sharpie texta and the end result was bad.
nevertheless it worked, no mega problems i cant deal with

got some yusynth arp-vcfs next and some stomp box adapter/lfos

then a HUGE list of backlog begins

anyone else doing this, got tips?

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futuresoundsystems
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Post by futuresoundsystems » Wed Aug 13, 2008 5:26 am

I use UV exposures (print out PCB drawing on to "acetate" (not actually acetate, I can't remember what the proper term is at the moment) and then expose UV sensitive board to it), then develop and etch them in tanks. Then it's on to drilling all the holes and finishing the edges off.
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krisp14u
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Post by krisp14u » Wed Aug 13, 2008 8:36 am

I use P&P Blue and get good results
Some tips
Use a solid toner from your printer the darker the better
get the copper board clean with a bit of wire wool make sure it shines wash with washing up liquid and rinse and dry try not to get finger prints on the copper (do this just before using the P&P on it)
Make sure the iron is hot
Use a sheet of plain paper in-between the iron and P&P and apply lots of movement all over the board for around 1 min more movement than pressure
After the min is up put the whole thing straight in ice cold water and peel of the P&P
Dry drill and only remove the P&P from the copper when you’re ready to solder
Works well for me
Cheers :guinness:

Paul
www.krisp1.com/store/
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dbch
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Post by dbch » Mon Aug 18, 2008 4:38 pm

i've been doing this for a while, too.
electro-music.com/forum has a diy site full of press and peel layouts and lots of helpful people.

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pristak
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Post by pristak » Mon Aug 18, 2008 10:06 pm

Those of you in the Dallas TX area. It looks like one of our first SDIY building meetings will be a workshop in pcb etching.

One of our members has done this quite a bit and it seems like learning PCB etching is a good way to get started. It is at least 2 weeks away though, probably a little more than that.

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Kwote
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Post by Kwote » Tue Aug 19, 2008 4:42 am

pristak wrote:Those of you in the Dallas TX area. It looks like one of our first SDIY building meetings will be a workshop in pcb etching.

One of our members has done this quite a bit and it seems like learning PCB etching is a good way to get started. It is at least 2 weeks away though, probably a little more than that.
this is one of those rare times where i actually wish i lived in texas. sounds hecka fun!!
Self expression is as essential as breathing
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pristak
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Post by pristak » Wed Aug 20, 2008 2:20 pm

It looks like the meeting won't be until 9/28. That is enough time to move.

dbch
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Post by dbch » Wed Aug 20, 2008 2:43 pm

Hey Kwote, what part of the west coast are you in? there are a couple of us in LA that get together to etch and drill boards form time to time....
david

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Kwote
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Post by Kwote » Wed Aug 20, 2008 10:51 pm

pristak wrote:It looks like the meeting won't be until 9/28. That is enough time to move.
:hihi:
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Kwote
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Post by Kwote » Wed Aug 20, 2008 10:53 pm

dbch wrote:Hey Kwote, what part of the west coast are you in? there are a couple of us in LA that get together to etch and drill boards form time to time....
david
concord my friend. SF Bay area for those that aren't fortunate enough to be hipped to the coolness that is .. CONCORD .. :sb:

so uh yeah not very close to LA but cool to know you guys are out there putting it down.
Self expression is as essential as breathing
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Luka
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Post by Luka » Thu Aug 21, 2008 8:18 am

well i just etched some more
this is fun

they worked so good this time

when i was etching i sat the ferric chloride container in another container with really hot water in it. etched 2 boards at once too. :)

this is a dangerous advace in my workflow. i wrote out my whole backlog last nite and it is a fair sum. this is going to make it so much bigger . wince.

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