The Shop > Electronics & IC Programing

Video on board etching

<< < (2/4) > >>

raynerd:
I am currently working on my UV exposure box as we speak!

I have all 95 LEDs hooked up on a board and running of my converted PC PSU 5v supply. My brother in law has built me a nice wooden box with silver foil reflective sides and lid - I picked this up about 30 minutes ago and I`ve just this second finished programming my PIC that runs the timer. I was just checking on here before going into the shop to make a start on hooking it all up!

Thanks for the vid. Excellent!   I was tempted to use dilute NaOH for developing and HCl for etching....anyone experience going down this route rather than "developing agent" and Ferric Chloride?

Chris

John Rudd:

--- Quote from: craynerd on March 10, 2010, 04:29:29 PM ---I was tempted to use dilute NaOH for developing and HCl for etching....anyone experience going down this route rather than "developing agent" and Ferric Chloride?

Chris

--- End quote ---

I thought Sodium Hydroxide was the developer....

I use Ferric Chloride for etching..

I prefer to use proven techniques for these sort of things..

Bluechip:
Chris

I've perked up tired FeCl with a bit of HCl ( dilute ! ), but never used it as the etch solution. I would think it may be too aggressive. If you do skinny traces that sneak betwen the pins on DIL etc. It may be that they get undercut and disappear. Particularly if you warm the etch bath.

I agree with Mr. Rudd. Stick with FeCl ...

However, feel free to try it at your expense ..  :D   and then tell us how you get on for nowt   ...    :)

Dave BC

John Rudd:
Here's a couple of boards I designed and etched..They are plated and then lacquered to protect even further....

Brass_Machine:
Nice John! Whats it do?

Eric

Navigation

[0] Message Index

[#] Next page

[*] Previous page