Re: TI-H: PCB

Re: TI-H: PCB

• To: ti-hardware@lists.ticalc.org
• Subject: Re: TI-H: PCB
• From: "David Knaack" <dknaack@hotmail.com>
• Date: Thu, 06 Aug 1998 14:46:53 PDT
• Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
• Reply-To: ti-hardware@lists.ticalc.org

>The secret is etching speed...  If you etch too slowly (like
>FeCL3 normally does) the etchant has way too much time to eat through
>the ink and it gets fux0red :).

Thanks for the hint, I'll have to try that next time.

>You can even etch directly with high molar hydrochloric acid, but only
>do this if you're a psycho and you're outside because it produces a
>ton of poisonous chlorine gas (i.e. it can kill you if you breathe
>it).  But, i've heard you can etch an entire board in under 2 minutes
>that way.

Cool! :) In chemistry the instructor let us play with the 30 molar
HCL once.  Wicked stuff it is. (ok, we wern't playing with it (much),
just diluting it for the other students).

DK

______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com

• Re: TI-H: PCB
• From: sampablo2@juno.com (Sam Camp)

• Prev: Re: TI-H: PCB
• Next: Re: TI-H: PCB
• Index(es):
  • Main
  • Thread