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Forums
4hv.org :: Forums :: General Science and Electronics
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Making circuit boards by hand

 1 2
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Hazmatt_(The Underdog)
Sun Jan 22 2012, 07:29AM
Hazmatt_(The Underdog) Registered Member #135 Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
 		Ammonium Perchlorate?

What a terrible waste of rocket fuel. o.0

Are you sure it wasn't Ammonium Persulphate?

Anyways, I've been using the paint pens as well for years and they are hands-down superior to markers, especially when you have to go back over an area that was thin. With a sharpie, it rubbs off the previous making that you did because it has terrible coverage.

Don't try peroxide + HCL and marker, the marker will just come right off during etch.

I also tried dilute Nitric because it eats the hell out of copper, but the Nitric will take the masking off in an instant, was a shame too. Would have been a great etch process if you mind the toxic Nitrous Oxide fumes and do it out doors, well.... the neighbors would probably still complain though.
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peter hansen
Tue Jan 24 2012, 11:21PM
peter hansen Registered Member #4233 Joined: Sun Nov 27 2011, 09:25PM
Location:
Posts: 6
 		I use Eagle cad for layout and. Toner transfer for etching
Th
Uploaded with ImageShack.us
Th
Uploaded with ImageShack.us
Th

Uploaded with ImageShack.us
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Zum Beispiel
Wed Jan 25 2012, 03:09PM
Zum Beispiel Registered Member #514 Joined: Sun Feb 11 2007, 12:27AM
Location: Somewhere in Pirkanmaa, Finland
Posts: 295
Hazmatt_(The Underdog) wrote ...

Ammonium Perchlorate?

What a terrible waste of rocket fuel. o.0

Are you sure it wasn't Ammonium Persulphate?
Haha, you're right. Don't know where the perchlorate came from, but then again chemistry has never been one of my strong points.
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Conundrum
Wed Jan 25 2012, 11:07PM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
 		Baked printer ink (seems that yellow works here) has been rumoured to work.

I refilled my Canon BJC a couple of days ago, seems to have worked.

-A
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Patrick
Thu Jan 26 2012, 08:40AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Conundrum wrote ...

Baked printer ink (seems that yellow works here) has been rumoured to work.

I refilled my Canon BJC a couple of days ago, seems to have worked.

-A
First, what do you mean? using ink toner from inkjet/bubble jets?

second, for those of you who use the laser printer/glossy paper method, do you ever have problems with microscopic defects like pinhole-ing?
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Killa-X
Fri Jan 27 2012, 01:20AM
Killa-X Registered Member #1643 Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039
 		Link2
Link2
Link2 Many.

Ive been making them for a year+. I design in eagles. Print to high-gloss photopaper with laser printer. I hit it with an iron for under 1 minute, soak in water, remove paper, dip in ferric for about 10-15 mins, sand the black off the trace (i may start dremeling the solder pads because i like the black trace)...sometimes i apply blue solder mask, and yeah..done.

I bought over 50 boards from goldmine, 5x4 inch single sided, for 50 cents each when they had a blow-out sale. I never use a perf board or breadboard in my life now...I just etch the design, print, and works...Love it!
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Patrick
Fri Jan 27 2012, 08:09AM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
 		Yes killa-X i see your boards, they're great but i see your traces are sort of etched too, im trying to avoid that.

i bought the expensive paper for toner transfer so ill try that, then try the other papers, and compare the end result.
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