Homebrew PCBs

Stefan Trethan wrote:

> Hi,
> 
> just tried a piece of a latex glove for transfer.
> While it can take the heat it does not release the toner readily.
> Don't think liquid latex coated paper would work.
> 

   It was really the after 700 degree cooking latex that I've been thinking of, 
the outer layer of what got pulled off the fingers and holes had a very good 
consistency to try.  Looking at the slick plastic/rubber coated handles of my 
electronics pliers right now they look pretty good too, may have to go get some 
plasti-dip tomorrow.  Have 6 things to try on hand including the high temp 
silicone but having to make some real boards with the old method so may not even 
look at it for a few days.

   Looking around on the net the cost per board goes down drastically after the 
$300 mark if they let you panelize, but it's still terrible compared $2/pcb 
sheet and making your own boards for anything simple.  I need 2.5" and 4" rounds 
by the hundreds shortly, near perfect and 5 minutes soon won't be enough, I need 
just about no involvement.  Like laser printing on the copper, it is time to 
make it work one way or another.  After the aluminum foil, I think it could work 
straight to board with some heavy work.  But for simplicity first to see about 
something that wipes or sprays on, non-conductive for imaging, etched by acid, 
and toner melts through so it doesn't get etched under.  Maybe something will 
fit that bill..

Alan