You could try simple pads along the edge of the board and solder the
stripped wires directly to the pads. This will give you the
clearance and is easier than drilling all those very tiny holes.
Simply tin each pad and wire seperately than heat them down. Very
easy.
Mark Higgins
--- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> I've seen this done and was wondering if anyone has some words of
> wisdom as to how to do it. Basically, I want to attach a ribbon
> cable directly to a PCB. The non-PCB end will use an IDC connector
> but I can't afford the size of header pins on the PCB. I've seen
> several LCDs that have 50 mil spacing hole/pads. The insulation
was
> stripped of the ribbon cable, the wires inserted in the holes and
> soldered. The solder is about 1 mm high. I need 2-3 mm clearance
so
> that works for me. Clearance on the bottom is a little less a
> problem but even SMT connectors are too big.
>
> Are there special tools for this? It sure looks tricky to do.
What
> size holes/pads?
>
> Phil