Homebrew_PCBs

Stefan Trethan wrote:

> On Wed, 16 Mar 2005 13:44:08 +1100, Adam Seychell
> <a_seychell@...> wrote:
>
>
>>I agree that there would be more complexity using nozzles/pump sprayer
>>as either the nozzles or board must move. The concept I used was fix the
>>PCB horizontal at the roof of a sealed tank, and have the spray nozzles
>>direct upwards to the PCB. The nozzles are mounted to a pipe that has
>>wheels at each end. The wheels run along two tracks mounted at each side
>>of the tank. Drive mechanism consists of belts and a stepper motor
>>mounted outside the tank. A pulley and shaft mechanically driving the
>>tanks internal pulleys. If anyones interested I can take photos and put
>>then to the photo section at Yahoo Homebrew_PCBs.
>>Adam
>
>
>
> Thanks for the photos, wow, you certainly put a lot of work in that!
> I think i might have seen pictures of your machine before, but then it was
> still under construction?
>
> It is HUGE now, it seems it lives outside? Not a problem with the weather?
>
> ST

When I was designing the tanks, I always had the intention of it living
outside, since something this big would take up to much valuable garage
space. Installing it somewhere like the bedroom or kitchen is not
something even I would attempt. Because PCB fabrication is a wet process
, it seemed only natural to make the equipment survive the outdoors.
All metal fasteners, hose clamps, mounting brackets, et, are stainless
steel/or aluminum, while all the plastics are UV resistant, and the wood
has five coats of paint :) Maximum PCB panel size is A4 (300x200mm).
BTW, there is still more work to do on the PTH chemistry and many other
little problems to fix.