[sdiy] DIY PCBs

[Rob B]

Well, if you MUST diy them, I personally have found that it is far more
reliable to do them with a dremel tool. Less mess, more accurate, less
chance of getting bad exposures, etc etc.

I started with the dremel, then a friend of mine introduced me to using a
milling machine to do boards, and it is just wonderful if you need to check
out boards..

You can get a cheap desktop mill for about 900 bux that runs off of a dremel
as the mill!

www.maxnc.com

Rob

----- Original Message -----
From: Jim Patchell <patchell at silcom.com>
To: Synth-DIY list <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, July 25, 2001 8:52 AM
Subject: Re: [sdiy] DIY PCBs


>     Back in the old days when I used to etch at home, I got a PC board
etching kit
> that came with Ammonium Persulfate.  I noticed the "Mercuric Chloride" was
included.
> It was in a little capsule.  I removed it (although, I don't remember what
I did with
> it, probably put it in the trash, so it is in a land fill most likely).
Even without
> the stablizer, the Ammonium Persulfate worked OK.  But I am with everybody
else.
> Send them out to be done.  I gave up on DIY PCB's over 25 years ago.  I
just don't
> like dealing with the chemicals.  And personally, I don't think you really
save any
> money anyway.  And you get back much nicer looking boards, with plated
through holes.
>
>     -Jim
>
> harry wrote:
>
> > yeah... My ex-company used to etch with Ammonium Persulfate..... know
what
> > they toss in to stabilize the etchant... a little Mercuric Chloride.
> >
> > They had to have about 10 trucks of dirt removed when they expanded the
> > building... that's where the drum storage was...
> >
> > They also have to run fans 24 / 360 in the new building... to get
whatever might
> > clear the vapor barrier...
> >
> > wanna guess the cancer rate at that place ???
> >
> > sorry I'm with Rick... don't etch at home
> >
> > H^) harry
> >
> > Scott Bernardi wrote:
> >
> > > Hey, I make my own PCB's, etch them in Ammonium Persulfate, and I live
in
> > > Antioch, California.
> > >
> > > ElmacacoX at aol.com wrote:
> > >
> > > > DAMN!!  and I got kinda freaked out when my soldering iron came with
a
> > > > warning that it contains substances known in the state of california
to cause
> > > > cancer!
> > > >
> > > > I ain't touching any of those chemicals I can't pronounce!
> > > >
> > > > long live pcb houses so when I need them, they'll be there!
> > >
> > > --
> > > Scott Bernardi
> > > sbernardi at home.net
>