The BB Gun

[edy_wheazel]

  This is one of my early builds. It's a BB Preamp and a JHS Minibomb in one box. They can be used separately or together.

[matmosphere]

"You'll shot yr eye out kid!"

Nice build

[Timko]

Nice etch there (both the enclosure and the board).

[stringsthings]

Very nice.  That is an excellent etch!

[gordo]

Holy crap, what a cool looking build.  I like the monochrome finish.

[edy_wheazel]

I used the etching method described here: http://www.madbeanpedals.com/forum/index.php?topic=23062.0

[Martan]

Great looking pedal! Thanks for the pictorial link. Could you explain a bit more? Are those water slides for the toner? Is that modeling clay to hold the etchant? Ferric chloride? How are you cleaning out the etched areas?

Really great stuff! Thanks,

Marty

[edy_wheazel]

Great looking pedal! Thanks for the pictorial link. Could you explain a bit more? Are those water slides for the toner? Is that modeling clay to hold the etchant? Ferric chloride? How are you cleaning out the etched areas?

Really great stuff! Thanks,

Marty

  It's not water slide, it's a cheap (around 2$) adsesive paper used in constructions to protect surfaces. You can see it in the 4'th photo.
  Not exactly modeling clay, it's actualy my kid's play dough
  Yes, I used second/third/fourth hand ferric chloride. It's the chloride i used to etch PCB's.
  Cleaning out the etched areas is kind of tricky, don't actualy have a good method for that. I use ordinary kitchen stuff and/or 1000/2000 sand paper.

  It's the cheapest method around, i used ordenary household items and used (actually overused) ferric chloride. If you draw the design by hand you don't even need a printer.

[jtaormina]

Great looking pedal! Thanks for the pictorial link. Could you explain a bit more? Are those water slides for the toner? Is that modeling clay to hold the etchant? Ferric chloride? How are you cleaning out the etched areas?

Really great stuff! Thanks,

Marty

  It's not water slide, it's a cheap (around 2$) adsesive paper used in constructions to protect surfaces. You can see it in the 4'th photo.
  Not exactly modeling clay, it's actualy my kid's play dough
  Yes, I used second/third/fourth hand ferric chloride. It's the chloride i used to etch PCB's.
  Cleaning out the etched areas is kind of tricky, don't actualy have a good method for that. I use ordinary kitchen stuff and/or 1000/2000 sand paper.

  It's the cheapest method around, i used ordenary household items and used (actually overused) ferric chloride. If you draw the design by hand you don't even need a printer.

Did you heat the ferric chloride at all? How long did it sit in the chloride?

[edy_wheazel]

Did you heat the ferric chloride at all? How long did it sit in the chloride?

No heat at all. Concentrated (or heated) Fe2Cl3 has a nasty reaction in contact with the aluminum, this is why i use overused Fe2Cl3. I don't have an exact recipe, but the reaction must be slow. If it starts bubbling slowly after a few seconds, i'm on the right track. Let it etch for 2-3 minutes, pour out the Fe2Cl3, check the depth of the etching and the integrity of the adhsesive paper. Pour "fresh" Fe2Cl3 inside and let it etch for another 2-3 minutes. Depending on the design and the concentration of the Fe2Cl3 i do that 2-3 times.
As i said, not an exact recipe, you need to experiment this. You may use another etchant, like NaOH, but after an accident involving my wife's shoes i'm banned for using that.

[galaxiex]

Really cool pedal and etches! 

How did you get such a clean etch on the board?

[edy_wheazel]

Really cool pedal and etches! 

Thanks!

How did you get such a clean etch on the board?

Cheap photo paper and laser printer.