Re: PCB Drilling G-code from EAGLE

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Keith Bowers <kabowers@N...>
wrote:

> The August (#181) issue of Circuit Cellar magazine

(www.circuitcellar.com)

> contains an article that may be of interest. "Analog Tips and

Tricks" by Ed

> Nisely. He discusses, among other things, how he makes prototype

PCBs and

> drilling them with a Sherline CNC mill. He wrote a program using

EAGLE user

> language program (ULP) to produce G-code. To quote the article "The

ULP

> sorts the holes by drill diameter and then visits each hole in
> nearest-neighbor order." The ULP code is available at:
> ftp.circuitcellar.com/pub/Circuit_Cellar/2005/181/
> You want the file Nisley181.zip
> Hope someone finds this useful.
> --
> Keith Bowers - Thomasville, NC

I think the thing missing is being able to pick a pattern in which to
drill holes.

I have a T-Tech machine and it has an option to re-sort the entries,
so from there, it runs in nearest neighbor, but there are many times
when it goes off into areas and misses tool path ways to get there
that could drastically cut down the time of the drilling.

I have not used Hans's program, but it allows you to put your board
onto your table, hover over one hole, set it as zero, then move to
some far away hole and set that as the hole location. The software
then re-aligns the pattern so as to drill the hole locations to match
how you placed it in the machine, and not force you to align the board
to the machine. Pretty slick idea.


Dave