Homebrew PCBs

Drilling isn't a problem with the right software. As long as the board 
comes out accurately to size, alignment isn't much of a problem.

All I do is find the positions of two diagonally opposite pads by 
visually aligning the drill with the pads. I then enter those 
coordinates into my software <http://www.sheetcam.com/> and it 
automatically shifts/rotates the drawing to match. As long as your 
visual alignment is reasonably accurate the results are excellent. As an 
experiment I deliberately stuck a board on the machine 45 degrees out of 
line. It made no visible difference to the final result.

Les


Cristian wrote:
> No, is NOT.
> Using a CNC to EDM mill is better, because you can use the same CNC, 
> with the PCB in
> position, to drill it too.
>
> Think about precision drilling in complex boards.
> Using the inkjet printing you have to drill it manually unless you 
> find a solution to position
> the resulted PCB under the CNC drill, which is, almost, impossible.
>
> Cristian  
>