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Subject: Re: [Homebrew_PCBs] Direct laser board printing

From: Mark Lerman <mlerman@...>
Date: 2008-03-27

I'm waiting for some 1/32 board to arrive, but meanwhile I'm using
some very thin (.010) DS board and some 1/32 aluminum as well as 1/16
pcb to experiment with. The toner seems pretty well fixed on the
board - even a moderate puff will not dislodge it. I think it's going
to take a fair amount of experimentation, but it should work.
I just ordered a simple pid controller that I'm going to try to hook
to an electric skillet to fuse the toner. I'm also going to see if I
can move the printer's fuser back the inch or so it needs to go to
provide a straight path. I have to move a gear and remount the fuser,
but it looks like there is enough room. Unfortunately, my machining
skills leave much to be desired. If it works, it will pretty neat -
just print the board, etch and drill!

Mark


At 10:16 AM 3/27/2008, you wrote:

>--- Mark Lerman <mlerman@...> wrote:
>
> > Thanks, Rob, for the detailed information - very
> > informative. The
> > spark seems to be a single spark, not always
> > present, seen after the
> > board leading edge leaves the printer. I've been
> > assuming it's static
> > electricity. I've been handling the boards as they
> > leave the printer
> > (careless??) with no problems, i.e. no shock.
> >
>Try beveling the edges of the copper on the leading
>edge. High voltage doesn't like sharp edges. Just
>light sind or file the edges of the board. See if
>that helps.
>
>A slight radius on the corners could help too.
>
>
>
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