Homebrew PCBs

wow! I think for now, I am going to stick to old school soldering small
wires into my vias. Then just using a board house for copies of my
prototypes. That youtube video that Simao sent was amazing, but its probably
too hardcore for me at this point. I gotta say that homebrew pcb guys are
some of the most inventive and fearless people I have ever dealt with. Since
the 90's this topic has grown by huge bounds!

Chris




On Mon, Apr 4, 2011 at 12:39 PM, Terry <twgray2007@...> wrote:

>
>
> I have tried this method with minimal success. I typically use a via hole
> size of 20mil, a #74 drill. I found it easier to not laminate the board
> prior to drilling. Just drill the holes, use a paint brush to apply the
> permatex to fill each hole, vacuum it out, then repeat for the second side.
> When done, use a paper towel with a little acetone to remove the ink from
> the surface of the board, being somewhat careful not remove any of the
> permatex from the holes.
>
> As I said, I had minimal success with this...high impedance across vias. I
> now use a silver bearing ink to prep the holes and then electroplate with
> copper. Electroplating turns out to be fairly inexpensive, easy, and safe,
> with near 100% success.
>
> Amazon has a deal to buy 12 packages of the permatex for about $80. If you
> have many holes it takes nearly a whole bottle to do one board...around
> $9.00 per board. A little pricey.
>
> Good luck.
>
>
> --- In Homebrew_PCBs@yahoogroups.com, Chris Kleeschulte <laconia@...>
> wrote:
> >
> > I am going to trying using James Mitchell's plated-thru hole method this
> > week and I wondering about the via creation in Eagle. What size hole is
> good
> > to use for this procedure? I am drilling the hole using a Micro-mark
> running
> > at 6500 rpm, so I may not get a super duper clean hole, but I think that
> it
> > should still work since I am using the thinner 1/32" fr-4. What do you
> all
> > think about this?
> >
> > On another note, I finally mastered the double-sided PCB creation
> process,
> > but now I am really really tired of hand soldering pins into vias. Front,
> > back, front, back, yuck.
> >
> >
> > thanks,
> > Chris
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>  
>


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