On Mar 1, 2010, at 6:24 PM, David V. Fansler wrote:

> On the other hand, chemical etching allows one to use any program  
> that you can print PCB files from

The LPKF software can start with a number of input formats, including  
standard gerbers, and includes options to remove excess copper  
(including using a combination of finer (more expensive) mills and  
larger (cheaper) mills as needed.)  This is the sort of thing I was  
alluding to when I mentioned the differences between the commercial  
PCB plotters and the hobbyist "my CNC mill can also make PCBs" variety.

One of the nice things is that you mount your blank material on the  
machine, change tools occasionally, and when you're done you have an  
etched, drilled, and cut-out PCB.  There is a lot less "in between"  
time than with chemical etching.

BillW



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