Homebrew PCBs

I like mechanical Etching because I don't have to handle acid.
The acid method produces finer traces than mechanical etching can so
that is a must for some people. The milling machine can mill and drill
the board. For the average person both methods produce a usable board.
Not having a copier I can't do Toner Transfer.   
 


--- In Homebrew_PCBs@yahoogroups.com, "lcdpublishing"
<lcdpublishing@y...> wrote:
>
> Okay, as you all know I am far from experienced with PCB making.  I 
> have gone through a variety of trials with the toner transfer method 
> and can appreciate it.  I can somewhat see it's limitations with 
> regard to how small of a trace I could do using this process.  
> However, if I ever need more detail, I could do the photoresist 
> process.  The chemicals work good and efficient, all around, etching 
> works very good.
> 
> Now about 6 months ago, I was wanting to do isolation milling as I 
> believed it to be better.  However, I am pretty much now in the 
> belief trying isolation milling will not show any advantages over 
> what I am doing now.  I seriously doubt it would be faster than 
> chemical etching.  I don't think the tool bits would last very long, 
> so I would guess that the tooling costs would negate the costs of 
> the chemicals. Even though you would be cutting with a very small 
> diameter pointed tool, I don't think you could get better results 
> (finer pitches and traces) using a milling process.
> 
> Is there something that I am not seeing in that process that would 
> give it advantages over chemical etching?
> 
> Thanks guys
> 
> Chris
>