samIam wrote:
>
>>Rather than drilling all the holes twice, couldn't you just drill a
>>couple for alignment and the drill the rest after the boards have
>>been glued together?
>
>
> Ill try both methods and see which one produces the better result.
>
> Its certainly not an issue of
> drill
> drill bits
> copper laminate
> toner transfer
> laser printer
>
> All of which I have or have in abundance. Time? no, I am currently
> surviving on 6 hours of sleep a day. ;)
>
>
>
Iron side 1. Drill two holes in opposite corners, put some for alignment if
you don't already have holes near the corners. Punch same holes in side 2 with
drill bits. Use two bits in holes to get in alignment and start ironing. Take
out bits and finish ironing. Etch etc.
Unless your board is more than 8 inches, keep the longest axis across the
page. More distortion in the paper pulling direction than the scanning
direction on most printers.
Works fairly well.
Surface mounting everything and doing 1 side is about ten times easier
though. I haven't had a DIP fail yet because I didn't drill 14 or 40 holes and
make the leads go through the board.
Alan