Alt-BEAM Archive
Message #08399
To: beam@sgiblab.sgi.com
From: "Dennison Bertram" dibst11+@pitt.edu
Date: Sat, 18 Dec 1999 16:36:29 -0500
Subject: [alt-beam] Re: PCB iron on transfers
Well, I didn't say the PCB houses didn't haev their drawbacks. I'm not rich,
so I'm carefull with my money. When I do a single board or something, sure I
do it with a pen or rub ons. PErsonally, aside from a PCB house I Think Rub
On's are the best method. As they always turn out perfectly (if you do it
right). And I also said for a PCB house you need to take alot of time
deciding what design is right for your purposes. When I get down to it, I
feel that the money is well spent.
dennison
At 11:18 PM 12/17/99 -0800, you wrote:
>jester96@iname.com wrote:
> >
> > ... The only way I can make PCBs now is with a pen, and that it's a
> pain in the arse, so I am looking for something better. How much do cheap
> UV boxes cost?
>
>Chris, you might want to consider photo-etching. A number of firms now
>make PCB's pre-coated with a photo-resist.
>
>Design your layout, print it onto transparency overlays, place it on a
>piece of pre-coated PCB material, weight it with a transparent plate,
>and expose it to UV according to instructions. Then develop the plate
>and etch.
(snip)
It may be a slight inconvenience, but use the sun. Won't get any
better source of parallel light. Besides what you may have heard it is
easy to get GREAT quality at home with the kits. If you follow the advise
of those who know how to do it. If you use quality copper boards and
quality silvering components, you will get very reliable boards at a very
reduced price. Not everyone wants to make 60 boards at once, then you are
going to pay out the nose for the boards. Even so, if it is a small
board....use a bigger copper board and cut-n-paste to fill the board. Like
what was mentioned before in an earlier message, follow the instructions
and you will succeed. Board houses can do it better, but their primary
function it to produce lots of them and fast. Hope this helps.
Robert
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