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Re: [Homebrew_PCBs] immersed etching

2005-04-17 by Stefan Trethan

On Sun, 17 Apr 2005 18:09:20 -0400, Alan King <alan@...> wrote:

>
>    Yep I'd say small to medium at most.  I was thinking about picking up  
> one of
> the tubes, but then it hit me duh I have a drilling machine and .010"  
> drills,
> probably better to take something like an IC tube and make my own  
> tests.  I
> could easily put in 1000 discrete holes at patterned locations.  Likely  
> need
> more at the edges since they'll be spreading into areas with no bubbles.
>   Actually the IC tube for .3" DIPs may be a good thing.  Turned upside  
> down it
> has a groove between the two humps for the DIP leads.  May lose the  
> bottom
> 1/4"-1/2" but that'd be ok by me for an all in one solution..
>   Might still need to have the tube lower to give it time to form a good  
> stream
> of bubbles, I may do a few tests soon.  Just ran back into my aerator  
> pump so I
> have the testing materials at hand.
> Alan


ok, thanks, let me know the findings. the IC tube is a good idea.
Now if i only had a x/y table or a cnc to get those holes in with some  
accuracy...

ST

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