Homebrew PCBs

> > I think the number of posts on the topics on here reflect the
> > background and experiance and direction of the list members.  90%
> > want to know about or handle chemcicals.
> 
> Some of us don't.  I for one have absolutely *no* interest in 
chemical 
> etching,  and plan to do it with CNC once I can get something put 
together. 
> Is there a problem with that?


let's try to steer this back to more PCB related questions.

There is a problem with chemical,  getting rid of the fumes and 
chemicals.

the bonus is you can do 100's of boards at the same time.

The benifit of mechanical etching is no chemicals.
the down side is the expensive cutters that wear out quickly.

A dull cutter will raise a burr on the copper and dependong on your 
hold-down method, will or will not effect the rest of the board.

It will however require intervetion to be able to solder SMT parts.

The other down side is how long it takes to make a board.  the 
mechanical engravers cut one section of a trace at a time so the 
entire time is longer than chemical etching.

Another plus for the CNC is drilled holes.

Dave



Dave