Homebrew PCBs

Adam Bradley wrote:
> Afternoon all.
> 
> I've made a couple of attempts at etching/drilling and have had a few 
> tracks lift during drilling.  
> 
> I've always lacquered before drilling and I'm beginning to think this 
> should be left until after I drill.
> 
> Any other issues that could be causing this?  I suppose the key is 
> super sharp bits.  PS: I'm using a 20k RPM 'dremel' like tool and non-
> tc drill bits (yet).  Have yet to find a source for them in Australia.

Farnell have them and Radio Spares might. They all have 1/8" shank.
A board house will give you some if you ask right;)
Mektronics in melbourne might have some: http://www.mektronics.com.au/
http://www.computronics.com.au/tools/

With the thin steel drills, you might as well be boring
with a knitting needle.