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A suggestion...

Posted by Anonymous User 
Anonymous User
A suggestion...
January 08, 2010 12:55PM
I have played around a bit more with pcb-gcode and made an observation that can be used to speed up routing the boards.

Pcb-gcode works by making a sequence of polygon outlines, configuring the polygons for increasing isolation.

At the end of the day, only the first polygon has any effect on the final board quality, because it defines the entire edge of the remaining copper.

The subsequent polygons just remove more copper between the copper that is to remain when the job is done.

Once the outline of the first polygon has been routed with nice sharp edges at a low feedrate, it is perfectly OK to increase the feedrate, to get rid of the remaining copper faster.

This really helps if you have a PCB with a big isolate value, for instance if you have mains-power on the board and use 2mm isolate around them.

Poul-Henning
Anonymous User
Re: A suggestion...
January 25, 2010 03:43PM
Just a follow-up:

I tried this yesterday, doubling feed after the first pass, and it has absolutely no effect on the resulting quality, because all the copper in these passes will not have edges relevant for the PCB.

Poul-Henning
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