Homebrew PCBs

On Thu, 31 Jul 2014 12:53:13 +0100, you wrote:

>A good & cheaper option to a stereo microscope is a USB microscope. Priced in the \ufffd30.00 to \ufffd50.00($45.00 to $70.00 aprox).
>I use mine for inspection as I have a old PC running Win XP as my W/bench PC. A chemistry stand with a beaker clamp allows me enough space to manipulate the board below with both hands.

That's a good use, but it is not stereo.  What you paid for the USB
microscope is what I paid for the binocular microscopes, although I
wouldn't buy one that was more (PS: Nikon is lots more).  The swing
arm stand was extra.

>An ongoing project, using a USB microscope on the top of a wooden box with my PCB drill & stand mounted underneath allows for precise drilling of the PCB as the microscope has a "cross type vernier built in)

I have one, I used a Proxxon rotary tool, a ball bearing slide, a
linear stepper, a TV camera and a monitor that had cross hairs for a
graticule.  

With a microprocessor controlling the drill rate, I have three
adjustable positions, rest, top of drill, and drill change.  Make sure
that you put a foot pedal in, you'll want one.

Very convenient now, and pretty much solves the board/board
registration problem.

Harvey


>Hope this is of some use, chester