Homebrew PCBs

On Sat, 03 Jul 2004 00:40:42 -0000, mikezcnc <eemikez@...> wrote:

> OK, Stefan, I got the message, sorry for overlooking teh rules.. This
> time, for a change, WILL BE about Mr Gootee and his suggestion. I
> just made a trial and I used a laminator. That paper is no different
> than most of papers suggested and tried by me. By the way, just a
> remark, it is an inkjet paper with heavy 'photographic' coating. One
> sheet is 30 cents. I noticed that paper wonders on its way out of the
> Laser printer. In fact on two trials, the first time when using a
> half a sheet, the image came out straight. The second time, even if
> the whole sheet was fed into the printer, the image was offset by 15
> degrees, although still correct (I hate to think about registration,
> if needed). I was using a laminator and a 0.032 PCB. It was hot, even
> and thin enough. Paper is very thick and it soaked for 15 minutes. I
> got maybe 60% of transferred image. Some lements transferred better
> then others.
>
> I have to admit that my image was very challenging and I was
> particularly impressed that certain three lines in a crowded area,
> transferred really well (100%). That gives me hope that possibly I
> didn't clean well enough (I really didn't). More trials to come.
> Amazingly all SMD pads transferred really well, I just lost 40% of
> traces.  Mike
>
>

In you and other posts i read about it beeing relatively thick.
I found the thinner the paper the better it works.
i use 100gram/sqm now.

The cleaning is a big issue, i have occassional failures if i "cut 
corners" there..

ST