<![CDATA[When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath.]]>When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. (It was completely weird and mysterious to me at the time, I had no concept of why anyone would want to do it). Making a single circuit board or a couple of copies.
I'm assuming nowerdays there's a way to do this more easily - either with some element of digital fabrication at home or sending off to a fab lab of some sort. I wouldn't know what to even search for - is this a thing?

]]>https://board.circlewithadot.net/topic/d35de94f-788d-41e2-a89d-06ea7680ddfe/when-i-was-at-school-they-taught-us-how-to-make-circuit-boards-using-letraset-ultraviolet-light-and-an-acid-bath.RSS for NodeFri, 01 May 2026 03:12:16 GMTWed, 22 Apr 2026 12:49:43 GMT60<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Thu, 23 Apr 2026 21:52:50 GMT]]>@nescivi @grahamdunning

Yeah Kicad is the thing ! I usually get my boards made (and delivered within a week !!) at JLC or PCBWay.

]]>https://board.circlewithadot.net/post/https://sonomu.club/users/madskjeldgaard/statuses/116456237987824700https://board.circlewithadot.net/post/https://sonomu.club/users/madskjeldgaard/statuses/116456237987824700Thu, 23 Apr 2026 21:52:50 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Thu, 23 Apr 2026 21:47:02 GMT]]>@grahamdunning in Europe, I've used eurocitcuits.com mostly. And I design in KiCad, which is a fantastic open source software package. By now you can even upload the KiCad files to Eurocircuits, without the need of exporting to Gerber files.

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/nescivi/statuses/116456215157219368https://board.circlewithadot.net/post/https://post.lurk.org/users/nescivi/statuses/116456215157219368Thu, 23 Apr 2026 21:47:02 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 21:52:45 GMT]]>@xaxalxe @yhancik ah thanks! Will have to check out the website too.

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116450575320165483https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116450575320165483Wed, 22 Apr 2026 21:52:45 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 21:51:52 GMT]]>@sbszine ah nice!
The only other thing I remember from it was the technician telling us you could use the acid to burn your finger prints off if you wanted to commit some crimes.

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116450571909089236https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116450571909089236Wed, 22 Apr 2026 21:51:52 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 20:50:13 GMT]]>@yhancik oh thanks for telling me about my website, I'll check my server when I get back home !

]]>https://board.circlewithadot.net/post/https://sunny.garden/users/xaxalxe/statuses/116450329457190307https://board.circlewithadot.net/post/https://sunny.garden/users/xaxalxe/statuses/116450329457190307Wed, 22 Apr 2026 20:50:13 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 20:40:02 GMT]]>@grahamdunning gotta tag @xaxalxe as she makes her own (beautiful) custom PCBs, I'm sure she has a few things to add 😉
(btw LucĂ­a, cyber.nymph.garden seems to be down!)

]]>https://board.circlewithadot.net/post/https://thereisno.computer/users/yhancik/statuses/01KPVEQN7Q9DA4SGYQX551WQRAhttps://board.circlewithadot.net/post/https://thereisno.computer/users/yhancik/statuses/01KPVEQN7Q9DA4SGYQX551WQRAWed, 22 Apr 2026 20:40:02 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 20:28:05 GMT]]>@grahamdunning i've definitely seen people order custom circuit boards in ones / twos, so i know it's out there.

]]>https://board.circlewithadot.net/post/https://sonomu.club/users/c_reider/statuses/116450242400872648https://board.circlewithadot.net/post/https://sonomu.club/users/c_reider/statuses/116450242400872648Wed, 22 Apr 2026 20:28:05 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 20:27:35 GMT]]>@grahamdunning We did the acid bath thing too my hazy recollection is that instead of letraset we had some kind of special paint pen to mask out the tracks.

]]>https://board.circlewithadot.net/post/https://dice.camp/users/sbszine/statuses/116450240473351964https://board.circlewithadot.net/post/https://dice.camp/users/sbszine/statuses/116450240473351964Wed, 22 Apr 2026 20:27:35 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 17:50:20 GMT]]>@diver300 ta!

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116449622118498348https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116449622118498348Wed, 22 Apr 2026 17:50:20 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 17:50:13 GMT]]>@Firesledge @aislerhq great, thanks.

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116449621665637798https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116449621665637798Wed, 22 Apr 2026 17:50:13 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 16:51:14 GMT]]>@grahamdunning It's now so cheap and fast to get boards made to ridiculously high standards that few people make their own. JLCPCB is one popular supplier

It is possible to etch boards with ferric chloride. Blank boards are available with photo resist, and the mask can be printed on a laser printer.

It's also possible to mill the copper from a circuit board using a CNC machine tool, which can be quite small if it's only got to take a sliver of copper from a fibreglass board.

]]>https://board.circlewithadot.net/post/https://mastodon.social/ap/users/115861159323159307/statuses/116449389751775301https://board.circlewithadot.net/post/https://mastodon.social/ap/users/115861159323159307/statuses/116449389751775301Wed, 22 Apr 2026 16:51:14 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 16:50:12 GMT]]>@grahamdunning If you’re in the EU, there’s also @aislerhq
https://aisler.net/

]]>https://board.circlewithadot.net/post/https://piaille.fr/users/Firesledge/statuses/116449385686139976https://board.circlewithadot.net/post/https://piaille.fr/users/Firesledge/statuses/116449385686139976Wed, 22 Apr 2026 16:50:12 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 14:15:11 GMT]]>@rayk great, ta!

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448776101576539https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448776101576539Wed, 22 Apr 2026 14:15:11 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 14:14:51 GMT]]>@diyelectromusic that's really helpful, thanks.

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448774815951758https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448774815951758Wed, 22 Apr 2026 14:14:51 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 14:13:50 GMT]]>@drfootleg super, thanks.

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448770785808292https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448770785808292Wed, 22 Apr 2026 14:13:50 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 14:13:34 GMT]]>@seekraft Thanks - yes I was aware this sort of thing exits, but assumed for a single board it would be quite pricy.

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448769789527628https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448769789527628Wed, 22 Apr 2026 14:13:34 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 14:12:34 GMT]]>@fnrd ace, thanks.

]]>https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448765835643343https://board.circlewithadot.net/post/https://post.lurk.org/users/grahamdunning/statuses/116448765835643343Wed, 22 Apr 2026 14:12:34 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 13:45:44 GMT]]>@grahamdunning

for home use, KiCAD is popular for schematic capture and PCB layout.

For fabrication, there are many vendors that will make PCBs and even populate them. JLBPCB and PCBWAY are two. You can also make two layer boards at home using a desktop CNC such as Carvera Air. And the old acid etch technique is still a low cost option.

]]>https://board.circlewithadot.net/post/https://techhub.social/users/rayk/statuses/116448660299290183https://board.circlewithadot.net/post/https://techhub.social/users/rayk/statuses/116448660299290183Wed, 22 Apr 2026 13:45:44 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 13:42:11 GMT]]>@drfootleg @grahamdunning Here are my notes from the first time I, a complete novice, designed a PCB and had it built...

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Arduino Uno Dual Merge MIDI “Shield” – Part 2

I've been meaning to have a try at PCB design for a while.  I'd like to add it to the list of things I'm amateurly enthusiastically ignorant about.   I've not seen anything like my Arduino Uno Dual Merge MIDI “Shield” available anywhere but it is built of individual designs I am very familiar with, so I…

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Simple DIY Electronic Music Projects (diyelectromusic.com)

(these days I always use jlcpcb with most of the default settings)

Main tip - keeping everything within a 100x100mm 2-layer board means they are ridiculously cheap to get made!

]]>https://board.circlewithadot.net/post/https://mastodon.social/users/diyelectromusic/statuses/116448646371317498https://board.circlewithadot.net/post/https://mastodon.social/users/diyelectromusic/statuses/116448646371317498Wed, 22 Apr 2026 13:42:11 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 13:36:16 GMT]]>@grahamdunning See https://jlcpcb.com/ for the high quality, low cost services available now. I've had a number of project designs made by them.

]]>https://board.circlewithadot.net/post/https://fosstodon.org/users/drfootleg/statuses/116448623068351966https://board.circlewithadot.net/post/https://fosstodon.org/users/drfootleg/statuses/116448623068351966Wed, 22 Apr 2026 13:36:16 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 13:30:24 GMT]]>@grahamdunning Not my practice, but as far as I understand, people tend to just order PCBs at specialized labs.

Some labs even populate the board for you, i.e. no need for hunting down parts or difficult soldering anymore. Also, the labs will have more choices of PCB material (think RF, or USB-C compatible stuff with a defined thickness), will do multi-layer boards and vias, print silk screen and solder resist, produce solder masks ...

A web search for "order pcb" brings up a few brand names.

]]>https://board.circlewithadot.net/post/https://mastodon.pwei.at/users/seekraft/statuses/116448600058525476https://board.circlewithadot.net/post/https://mastodon.pwei.at/users/seekraft/statuses/116448600058525476Wed, 22 Apr 2026 13:30:24 GMT<![CDATA[Reply to When I was at school they taught us how to make circuit boards using Letraset, ultraviolet light and an acid bath. on Wed, 22 Apr 2026 13:24:50 GMT]]>@grahamdunning yep, printing single and doublesided PCBs has gotten easier, and you can get just a few printed too. My recommendation is to look at some videos on it, see what software they use. Like here: https://app.media.ccc.de/v/cosin2025-56360-pcb-ci-printed-circuit-b But uh, it's in German. Which software is used can be handy, and he shows where he prints his PCBs too.

]]>https://board.circlewithadot.net/post/https://toots.nu/users/fnrd/statuses/116448578163956318https://board.circlewithadot.net/post/https://toots.nu/users/fnrd/statuses/116448578163956318Wed, 22 Apr 2026 13:24:50 GMT