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Etched enclosures

Started by Johnny Lemonhead, July 15, 2010, 10:30:16 PM

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thomasha

Tried something new: transfering and etching 3 sides at the same time.
Still something to learn. The edges are not as good as I would like, probably needed more effort during the transfer.

Instead of etching everything at the same time I kept turning it in a shallow puddle of acid. The edges suffered with the overexposure too.







deadastronaut

Awesome...that looks excellent.... 8) 8) 8)

Well worth trying man...nice one
https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

Hexjibber


lars-musik

Wow! Fantastic. I hope, I'll get that out of my head until my next enclosures are due.....

thomasha

Thanks!
Has anyone tried something similar?
Doing every side separately can give better results, but takes too much time. I think i'll work longer on the ironing of the edges next time.

Marcos - Munky

I tried it once, doing all the faces but the bottom one: https://www.diystompboxes.com/smfforum/index.php?topic=85803.msg1124263#msg1124263

I can't really remember if I did all the faces at the same time or one by one, but I do remember it was a hard etching because one side come more shallow than the other. I didn't tried it again, not for the extra work but because I didn't had to. This one was a drawing by a friend that asked me for the pedal, so it was a kind of "signature exclusive" build :icon_mrgreen:.

But I don't think I can do more than one side with as much details as you can. In fact, I don't know if I can do just one side with as much details as you can :icon_mrgreen:

deadastronaut

my latest....

after months of tinkering on breadboard with different chorus's...here it is,  skyscape chorus.

a heavily modded small stone with bells n whistles.....















and  demo of course....

https://www.youtube.com/user/100roberthenry
https://deadastronaut.wixsite.com/effects

chasm reverb/tremshifter/faze filter/abductor II delay/timestream reverb/dreamtime delay/skinwalker hi gain dist/black triangle OD/ nano drums/space patrol fuzz//

bluebunny

  • SUPPORTER
Ohm's Law - much like Coles Law, but with less cabbage...

Marcos - Munky

Awesome - as all your other previous etches :icon_wink:

lars-musik

SMD always feels a bit like cheating. But it is still a lot of work taking the debugging into account (I submitted a faulty BOM and one gain setting resistor was indeed a 3n3 cap. That took me some time to figure out!).
So here is the "Hipster", two hyped pedals (at least in Germany) in one enclosure. A Benson Preamp and a 1981.



phasetrans

Quote from: lars-musik on September 08, 2020, 09:40:58 AMSo here is the "Hipster", two hyped pedals (at least in Germany) in one enclosure. A Benson Preamp and a 1981.



I really like this. How did you do the color fading? What's the etching solution / time.
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davent

Quote from: phasetrans on September 08, 2020, 01:45:48 PM
Quote from: lars-musik on September 08, 2020, 09:40:58 AMSo here is the "Hipster", two hyped pedals (at least in Germany) in one enclosure. A Benson Preamp and a 1981.



I really like this. How did you do the color fading? What's the etching solution / time.

Just aim, angle your paint source so paint doesn't reach the far end of the enclosure. Practice, experiment spraying a fade on paper before you try it on an enclosure. Way easier to do than explain.
dave
"If you always do what you always did- you always get what you always got." - Unknown
https://chrome.google.com/webstore/detail/photobucket-hotlink-fix/kegnjbncdcliihbemealioapbifiaedg

lars-musik

Quote from: phasetrans on September 08, 2020, 01:45:48 PM

I really like this. How did you do the color fading? What's the etching solution / time.
[/quote]
Fading as Davent said. The etching solution is HCl, 24%, heated to about 60°C. But I do the etching under a fume hood in a lab - the gases are noxious and the reaction is quite exothermic. I really wouldn't recommend it at home.

phasetrans

#2593
Quote from: lars-musik on September 08, 2020, 02:37:50 PM
Fading as Davent said. The etching solution is HCl, 24%, heated to about 60°C. But I do the etching under a fume hood in a lab - the gases are noxious and the reaction is quite exothermic. I really wouldn't recommend it at home.

My graduate school education was in physical chemistry and materials science, so this is my kind of reaction :-) Have you ever tried a phosphoric / nitric bright dip etchant?

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lars-musik

Quote from: phasetrans on September 08, 2020, 02:47:11 PM

My graduate school education was in physical chemistry and materials science, so this is my kind of reaction :-)

Haha. That's settled then.

Quote from: phasetrans on September 08, 2020, 02:47:11 PM

Have you ever tried a phosphoric / nitric bright dip etchant?
No, I just googled it.  Sounds very good. However, I found my standard protocol and will stick with it.

phasetrans

Quote from: lars-musik on September 08, 2020, 02:52:39 PM
Quote from: phasetrans on September 08, 2020, 02:47:11 PM

Have you ever tried a phosphoric / nitric bright dip etchant?
No, I just googled it.  Sounds very good. However, I found my standard protocol and will stick with it.

What do you use as the protective film in the hot acid? Standard transfer paper?
  • SUPPORTER


phasetrans

Quote from: lars-musik on September 09, 2020, 02:28:35 AM
Quote from: phasetrans on September 08, 2020, 06:34:54 PM

What do you use as the protective film in the hot acid? Standard transfer paper?

This: https://de.farnell.com/kontakt-chemie/positiv-20-200ml/fotolack-positiv-fl-ssigresist/dp/801010

Oh, a "real" positive resist. Takes me back to my first engineering job, lithography engineer at AMD.

What do you use to transfer the image? Acetate? Paper made transparent (somehow)?
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elvis_alive_diy

My first ever and second DIY pedal build for me and my friend. Big Muff Pi v3 clone with some modifications.
Elecrolytically etched case, it is a bit wild process to control it, first attempt (left) was slightly better than second one  :icon_rolleyes: