Re: [CAD_CAM_EDM_DRO] Re: Through hole plating

Bertho Boman wrote:

> By the way, the problem with home made boards is not adding jumpers or
> wires between top and bottom, it is soldering the topside
> under connectors and sockets.

This really is not that big a problem. I do this all the time for
prototypes. I use
sockets with longer leads than the usual flush-mount ones. For some
things,
wire wrap sockets are OK. I also get these strips of single socket
pins, and
break them off to the appropriate lengths, and solder into the DIP pin
rows,
etc. By placing the pins just far enough into the board to solder the
'back'
side, there is enough room to solder the front side, too. Since there
is
nothing in the 'inside' of the socket, you have plenty of room to access
one
side with a soldering iron, and the other with the solder. This also
allows
better inspection of the solder joint. I have some gear that has been
running
with these methods for nearly 10 years!

One of the advantages of using wire wrap sockets is that the long pins
on the
back are perfect for probing signals during the debugging phase. I just

finished working on a design with a programmable logic device with 68
pins.
I had about 35 signals, plus a bunch of grounds brought out to a logic
analyzer from the wire wrap pins. Made debugging real easy!

Jon