Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "schabtach" <adam@...> wrote:
>
> Greetings,
> 
> I'm rounding up tools and materials to try my hand at making PCBs. 
My
> intention is to use the Pulsar method. I have obtained a GBC 9"
> Personal Laminator, but it seems that 1/2 oz. 0.032" clad boards are
> very hard to find. After much googling the only source I've found is
> Digi-Key, and they're currently out of stock.
> 
> I'm wondering whether anyone has tried feeding the thicker 0.064"
> stock through the GBC Personal Laminator. I've spent a good deal of
> time reading the archives of this mailing list and while I've seen 
it
> mentioned several times that feeding the stock in corner-first helps
> with thicker material, it isn't clear to me whether anyone is doing
> this successfully with this laminator. I noticed that the 
instructions
> say that the maximum pouch size is 5 mil, but I don't know whether 
or
> not that tells us anything useful.
> 
> I might just try it myself, but I thought I'd ask here first before 
I
> run the risk of gagging my brand-new laminator. 
> 
> Alternatively, has anyone tried the sponge-etch method with 1 oz.
> copper stock? 1 oz. / 0.032" stock seems to be readily available.
> 
> Thanks in advance for any replies.
> 
> --Adam
>
MG Chemicals markets a line of board material in 1 oz. cladding.
Some of the material is available in various sizes in 1/32" (0.032").
( http://www.mouser.com/catalog/627/1780.pdf )
( http://www.circuitspecialists.com/level.itml/icOid/1634 )
( Google > MG Chemicals +copper clad board +"1/32" )
As stated 1 oz. will simply take a little longer to etech, but it 
will carry more current, thus you can use thinner traces.