Homebrew PCBs

Greetings all,
	Scanning the threads and the OTHER "fluorescent Bulbs"
thread reminded me . . .

I took apart some scavenged flatbed scanners the other day salvaged
the ½" slide rails for a CNC milling project. Anyway these scanners also
contained 12 volt DC drivers and 8 watt "T5" size bulbs and it occurred
to me that I might be able to remount two of these along the LONG sides
of on of the scanners modify the box a bit and use it as a Photoresist
Exposure unit. Any one ever done this ?  Anyone know of a source where
I can get "Plant Grow" lamps, "Black" lamps "Bug Zapper" or some other 
type of  "UV" fluorescent lamp in a 8 Watt "T5" size 
( ~ 0.6xx" dia. X ~ 12" pin end to pin end ) on the CHEAP? 
Not the EXPENSIVE "GERMICIDAL" type.

Thanks

Hi,

--- In Homebrew_PCBs@yahoogroups.com, "scratch_6057" <dml.empsrch@...> 
wrote:
> Anyone know of a source where
> I can get "Plant Grow" lamps, "Black" lamps "Bug Zapper" or some 
other 
> type of  "UV" fluorescent lamp in a 8 Watt "T5" size 
> ( ~ 0.6xx" dia. X ~ 12" pin end to pin end ) on the CHEAP? 
> Not the EXPENSIVE "GERMICIDAL" type.

Try bulbs.com
http://www.bulbs.com/products/product.asp?page=products&class=724

Regards,
Dennis

HI s,

I have an HP scanner (SCSI) that I picked up for parts.  You're right, it
looks like it would make a GOOD light table.  I hadn't thought of using it
to expose paper!

I was able to get a 12" (?) UV tube from a barber supply.  They use them as
germicidal lamps.  "Orchard Supply" or "Home Depot" should have them as grow
lamps as well.

Lotta good stuff in a scanner!  Too bad mine is SCSI; but I intend to see if
I can get some of the electronics going before I part it out.

Alan  KM6VV

> Greetings all,
> 	Scanning the threads and the OTHER "fluorescent Bulbs"
> thread reminded me . . .
> 
> I took apart some scavenged flatbed scanners the other day salvaged
> the ½" slide rails for a CNC milling project. Anyway these scanners also
> contained 12 volt DC drivers and 8 watt "T5" size bulbs and it occurred
> to me that I might be able to remount two of these along the LONG sides
> of on of the scanners modify the box a bit and use it as a Photoresist
> Exposure unit. Any one ever done this ?  Anyone know of a source where
> I can get "Plant Grow" lamps, "Black" lamps "Bug Zapper" or some other
> type of  "UV" fluorescent lamp in a 8 Watt "T5" size
> ( ~ 0.6xx" dia. X ~ 12" pin end to pin end ) on the CHEAP?
> Not the EXPENSIVE "GERMICIDAL" type.
> 
> Thanks
> 
>

Zdravo Alan,

  Thursday, April 6, 2006, 5:03:03 PM, ti rece:

> HI s,

> I have an HP scanner (SCSI) that I picked up for parts.  You're right, it
> looks like it would make a GOOD light table.  I hadn't thought of using it
> to expose paper!

> I was able to get a 12" (?) UV tube from a barber supply.  They use them as
> germicidal lamps.  "Orchard Supply" or "Home Depot" should have them as grow
> lamps as well.

> Lotta good stuff in a scanner!  Too bad mine is SCSI; but I intend to see if
> I can get some of the electronics going before I part it out.

> Alan  KM6VV
 



  A BIG WARNING:

  Do  not use GERMICIDAL lamps. these have peak radiation in UV-C part
  of  the  spectrum (cca 270 nm). Photo resist, on the other hand, has
  the  peak sensitivity somwhere near 340-360nm (UV-A), so black light
  tubes would be OK.

  Shortwave  UV  (UV-C)  does not penetrate through the atmosphere and
  therefore is not present on the earth's surface and it is HARMFUL to
  eyes (causes irreversible damage to eyesight).

-- 
 Best regards,

 Zoran A. Scepanovic
 zastos@...
 
*********
If a program is useless, it will have to be documented. 
*********

Please be advised what was said may be absolutely wrong, and hereby this disclaimer follows.  I reserve the right to be wrong and admit it in front of the entire world.



[Non-text portions of this message have been removed]

Good Point!

Different wavelength?  I bought mine 30 years ago to erase EPROMS.  I always
ran it in a closed box.

Alan  KM6VV

> Zdravo Alan,
> 
>   Thursday, April 6, 2006, 5:03:03 PM, ti rece:
> 
> > HI s,
> 
> > I have an HP scanner (SCSI) that I picked up for parts.  You're right,
> it
> > looks like it would make a GOOD light table.  I hadn't thought of using
> it
> > to expose paper!
> 
> > I was able to get a 12" (?) UV tube from a barber supply.  They use them
> as
> > germicidal lamps.  "Orchard Supply" or "Home Depot" should have them as
> grow
> > lamps as well.
> 
> > Lotta good stuff in a scanner!  Too bad mine is SCSI; but I intend to
> see if
> > I can get some of the electronics going before I part it out.
> 
> > Alan  KM6VV
> 
> 
> 
> 
>   A BIG WARNING:
> 
>   Do  not use GERMICIDAL lamps. these have peak radiation in UV-C part
>   of  the  spectrum (cca 270 nm). Photo resist, on the other hand, has
>   the  peak sensitivity somwhere near 340-360nm (UV-A), so black light
>   tubes would be OK.
> 
>   Shortwave  UV  (UV-C)  does not penetrate through the atmosphere and
>   therefore is not present on the earth's surface and it is HARMFUL to
>   eyes (causes irreversible damage to eyesight).
> 
> --
>  Best regards,
> 
>  Zoran A. Scepanovic
>  zastos@...
> 
> *********
> If a program is useless, it will have to be documented.
> *********
> 
> Please be advised what was said may be absolutely wrong, and hereby this
> disclaimer follows.  I reserve the right to be wrong and admit it in front
> of the entire world.
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> Be sure to visit the group home and check for new Links, Files, and
> Photos:
> http://groups.yahoo.com/group/Homebrew_PCBs
> 
> If Files or Photos are running short of space, post them here:
> http://groups.yahoo.com/group/Homebrew_PCBs_Archives/
> Yahoo! Groups Links
> 
> 
> 
>

>   Shortwave  UV  (UV-C)  does not penetrate through the atmosphere and
>   therefore is not present on the earth's surface and it is HARMFUL to
>   eyes (causes irreversible damage to eyesight).

My fishpond light is uv-c, 5w, and not in a box or anything, I usually
sit near it with a cold beer for a few hours now and again, just how
much damage could it have done............

(think I'l build a box round it)

Hi Alan,

  Thursday, April 6, 2006, 7:54:25 PM, ti rece:

> Good Point!

> Different wavelength?  I bought mine 30 years ago to erase EPROMS.  I always
> ran it in a closed box.

> Alan  KM6VV

  The  shortwave  UV  IS used to erase EPROM's (the manufacturer specs
  are,  if  I  remember  correctly,  273  nm,  and  that's  UV-C,  not
  particulary applicable for photoresist.

-- 
 Best regards,

 Zoran A. Scepanovic
 mailto:zastos@...
 
*********
Interchangeable tapes won't. 
*********

Please be advised what was said may be absolutely wrong, and hereby this disclaimer follows.  I reserve the right to be wrong and admit it in front of the entire world.



[Non-text portions of this message have been removed]

Hi Zoran,

OK, different animals!  Thanks for alerting me, I might have gone on and
tried to use my lamps for photo resist, and not have realized why they
didn't work.

Right now, I'm concentrating on the mechanical method of milling isolation
traces on PCBs.  It "fits in" with my CNC work.  I'm currently working on
making parts for a 12" x 12" PCB router of my own design.  I'm trying to use
"on hand" linear motion components, although I did buy some linear round
rods and linear bushings on E-bay.  I'm still looking for flanged ACME
bronze nuts and ACME threaded rods (to match some I have).  

Best regards,

Alan  KM6VV
SherlineCNC list

> On Behalf Of Zoran A. Scepanovic
> 
> Hi Alan,
> 
>   Thursday, April 6, 2006, 7:54:25 PM, ti rece:
> 
> > Good Point!
> 
> > Different wavelength?  I bought mine 30 years ago to erase EPROMS.  I
> always ran it in a closed box.
> 
> > Alan  KM6VV
> 
>   The  shortwave  UV  IS used to erase EPROM's (the manufacturer specs
>   are,  if  I  remember  correctly,  273  nm,  and  that's  UV-C,  not
>   particulary applicable for photoresist.
> 
> --
>  Best regards,
> 
>  Zoran A. Scepanovic
>  mailto:zastos@...