_Very_ clever trick, Ballendo! But I hope I won't have to ever use
it, because with luck I'll have one of your new machines soon! Can't
wait to see what other clever tricks you have imcorporated into your
products....
- Steve
--- In
Homebrew_PCBs@yahoogroups.com, "ballendo" <ballendo@y...>
wrote:
> Hello Nick,
>
> Welcome. Before I started using CNC to drill pcb holes, I came up
> with something that improved my results immensely, but took a bit
> more time, and requires a decent drill press (as one reply
mentioned,
> if your drill press goes all over the place as you bring it down,
> you're fighting a losing battle.)
>
> Anyways, here's what I useta do. Use a piece of .100 perfbord UNDER
> the pcb--on the drill table. Then use a dual inline header strip as
> a "fence" to guide the PCB. By using this fence system to control
the
> front to back, your eyes only need to determine left and right
> placement. As long as you use a .100 layout, this can be pretty
quick.
>
> Start with the FRONTMOST holes in your PCB. This means the "fence"
> will be the farthest away from the bit. Go from left or right and
> when that "row" is drilled pull the header forward one row and
repeat.
>
> As I said, moving the header "fence" takes a bit more time than
> without, but the straight even holes are worth it, IMO.
>
> Hope this helps,
>
> Ballendo