On Tuesday, May 4, 2004, at 03:48 US/Pacific, Roland wrote:

> The problem with the eyelet/pin/rivet thingies is the tediousness of
> it, which is just the kind of thing suited to a small stepper driven
> pick n place type machine.

> Or it could be a bare copper wire fed machine.

Maybe.  Another problem with eyelets is that they require a
significantly larger hole.  Between that and the already rather coarse
capabilities of homebrew, you can lose the ability to route tracks
between DIP pins, which makes everything a lot tougher to route.

Likewise, against wires, routers like to route signals through pins
rather than dedicating vias.  So you need room for wire PLUS pin.
And/or you have to be careful which types of component pins are doubled
as vias, since not all components allow soldering on both top and
bottom.

Together, this means you have to change a lot of the thinking process
you use in designing a board if it will be created without THP.  This
is very annoying :-(

BillW

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