Homebrew PCBs

Hi Derek and group
Good job Derek with drawers & camera.
I read all messages in this group and have never read something I want to
point to the group.
The idea is to build a UV box "from a roadside garbage dump" desktop
scanner. You have the box, the glass, the lid and maybe the mains switch in
the older (newer have DC supply) and pilot led. All of them already cut and
assembled. Of course, you must to empty the remaining hardware and
accomodate the lamps, starters and only one ballast for 4/5 lamps (the ones
that are employed in the mosquitos traps of abt 30 cms.)
I guess the glasses in these scanners must be good quality, ie., well flat
and parallel faces.
Here I have already "empty" 3 scanners that are waiting in my shelves to
accept the modification.
Additionally, if you save the original neon lamp+support+inverter you get a
nice 12VDC neon lamp to operate from battery in black-outs. Do not forget
the steppers, belts, etc.
Thanks for reading.
Jose.

----- Original Message ----- 
From: "derekhawkins" <derekhawkins@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Wednesday, November 16, 2005 2:32 AM
Subject: [Homebrew_PCBs] A $500.00 "UV" non-trivial exposure box.....


> made from two draws (from a roadside garbage dump) sawn in half and
> epoxied together. No form of collimation whatsoever, can do .007"
> tracks and spacing with ease. Uses standard daylight bulbs, takes 5
> minutes per side for proper exposure using positive pre-sensitized
> boards ($3.38 each for double sided 6"X4"). I can go from print to
> etched board in less than 30 minutes. You just cannot get this sort
> of workflow or board quality from TT. TT is something for the
> absolute novice IMO....Which was me 5 years ago.
>