Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "dl5012" <dl5012@...> wrote:
>
> Hi Sam,
> 
> It sounds like you're describing CEM-1.  This is a paper epoxy 
> material that's not suitable for THP (Through Hole Plating), so 
> you'll only find it in single sided.  A common thickness is 0.0625.
> 
> The preferred way to cut PCB material is with a shear.  When I cut 
> CEM-1, I don't get the smooth edges you're looking for.
> 
> If you're in the US, I can cut material for you as long as it's 
> under 8" wide.  You'll have to dress the edges...
> 
> CEM-1 material is cheaper than FR-4.  I buy most of my material 
from 
> Bill; he sells on eBay as abcfab.  If you do an off eBay 
> transaction, give me the referral.
> 
> HTH,
> Dennis
> 

Thanks for the feedback Dennis.  I was going to ask if you checked my 
photos but it looks like the moderator has not approved them for 
posting yet.  I'm hoping if someone can see the material they can 
confirm the substrate type ...but sounds like your pretty confident 
what I'm looking for is CEM-1.

I actually prefer single sided and .0625 is perfect for my uses.  Why 
do you say shearing is preferred ...to reduce waste and dust?  I was 
leaning to machine cut so I won't have to dress edges ...that is not 
a plus for me.  I'm thinking a small wet saw would solve the dust 
issue if a small enough blade kerf is available ...haven't checked 
that out yet!  Otherwise I'd be making as much waste as strip.

Thanks for your offer to cut ...I'll keep that in mind.

Sam