250 watt 120 volt GE Infared Heat Lamp.
Spaced 11" from the pc board with an exposure time of 75 to 90 seconds. I generally do the 90 seconds.
I bought it at Walmart about 10 years ago and it's still going strong.
Richard
----- Original Message -----
From: John P. Anhalt
To: Homebrew_PCBs@yahoogroups.com
Sent: Sunday, March 04, 2007 9:11 AM
Subject: Re: [Homebrew_PCBs] sensitized boards
Richard,
Can you give a little more detail about the heat lamp that you use, such as brand, wattage, and identifier number on it?
Thanks.
John
----- Original Message -----
From: Richard
To: Homebrew_PCBs@yahoogroups.com
Sent: Sunday, March 04, 2007 9:40 AM
Subject: Re: [Homebrew_PCBs] sensitized boards
I use Infared Light to expose my positive sensitized boards because I can expose them in about 90 seconds using a IR heat lamp.
Richard
----- Original Message -----
From: docstein99
To: Homebrew_PCBs@yahoogroups.com
Sent: Thursday, March 01, 2007 11:28 AM
Subject: [Homebrew_PCBs] sensitized boards
I was wondering if anyone can give me some advice, looking at the
threads recently it looks like lots of people here have tried
sensitized boards.
This material appears to be the same stuff as silkscreen printers use
on silkscreens, where the exposed areas to intense light are hardened
and the unexposed areas are washed away with water.
Do any of the sensitized boards or materials react to INFRA-RED light?
I have an infra-red laser diode on a cnc machine, its not powerful
enough to cut stuff with but will smolder black foams. I was wondering
if its possible to use that to rastorize the image, but I dont know
about all the different types of sensitizer or what types of lights
they react to. I know in screen printing, they make types which react
to a 4k watt metal halide bulb, and newbie stuff that works with a 150
watt lightbulb.
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