Re: gEDA-user: Enhancements for gEDA/pcb G-code export

[Markus Hitter <mah@xxxxxxxxxxx>]

Hi again :-)

Hacking pcb is so much fun, I'm already close to the part where I  
want to implement milling of non-track stuff. Like the board's  
outline, like venting holes, like bigger bores.

Likely the best idea would be to search for such geometry on a  
"milling" layer. I also think it's best to ignore line thicknesses  
for such tasks and to simply move the mill bit along the line's or  
arc's center. Set the line width to the mill bit's diameter and the  
display is accurate.

One question arises is, how to decide wether to flip the geometry or  
not. Single-sided boards are manufactured from the bottom side only,  
so flipping would be undoubtly appropriate. Is there a need for  
milling from the top side, after all? If I put the milling layer into  
the solder side and component side groups for distinction, this  
disturbs all the tracks, right?

Another one is, is there a GUI way to create lines outside the board?  
Milling the outer border of the board is always done from outside the  
board, after all.

Any comments are welcome


Markus

- - - - - - - - - - - - - - - - - - -
Dipl. Ing. (FH) Markus Hitter
http://www.jump-ing.de/







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