Homebrew PCBs

On Thu, 24 Nov 2016 08:46:30 +0000 (UTC), you wrote:

>I am right back to square on not being able to afford proxion and am looking at carbide drill and press seen at jameco.com but with no spec sheet. 

The 12 volt proxxon will do fine, I have used both.  Avoid Dremel, the
runout is bad.  It's not designed with as much precision as the
proxxon.  No experience with the proxxon drill stand, though.

>Jameco.com seems to be a good site, company ect. 

They are.  Higher the RPM the better (for small size bits).

>My peroxide bought at dollar store is the cause of long etch times. 

Peroxide does expire, lose oxygen content.

>Has any one tried the edinbourgh etch method? Will food grade citric acid like ones sold on amazon.com work ok?

You may also find it in some food stores.  Haven't tried it.  Fresh
peroxide is the key, though.


Harvey