Homebrew PCBs

Kevin,
Until I say the last photo, I was stunned at how evenly positioned
your holes were!  I get a daily email digest from the group, so I
hadn't seen your mill yet.  That's really something.  Looking through
the files the other day, I saw some other really impressive CNC-type
machines.  I cannot comprehend the ability of an individual to produce
something like that, even though I spent over 30 years in engineering!

By the way, the transfers looked superb as well!

Cheers,
Ted

--- In Homebrew_PCBs@yahoogroups.com, "Kevin Morgan" <prizes@...> wrote:
>
> Hi Ted,
> 
> I posted a couple of pictures to the group.
> 
> http://ph.groups.yahoo.com/group/Homebrew_PCBs/photos/browse/a89e?c=
> 
> The board layout uses some very wide traces because I wasn't really 
> expecting the results to be that good. I think the traces are 25 mil 
> or 30 mil. There is some very fine lettering at the bottom of the 
> board that did not transfer completely, but I did not expect that to 
> come out at all, so it was a pleasant surprise.
> 
> I used the same method for the top markings, but they show an 
> incomplete transfer. I think that's because I didn't really make much 
> of an effort to prepare the surface, and if it was important to me, I 
> would have redone it.
> 
> I don't know if 1/16'th is the thickest the laminator can handle, but 
> it's probably as thick as I'm ever going to use.
> 
> Kevin
> 
> 
> 
> --- In Homebrew_PCBs@yahoogroups.com, "kilocycles" <kilocycles@> 
> wrote:
> >
> > Kevin,
> > Gee, I paid more than that for the 2040!  I think I'll invest in a
> > laminator rather than trying to find an iron that doens't have steam
> > holes.  Something tells me that the only one I'd be able to find 
> these
> > days with no steam capability would be an antique that you heat in 
> the
> > fireplace!
> > 
> > Do you think that 1/16"-thick PCB stock is about the thickest the
> > laminator can handle?  Please share your future results with the
> > group.  I'll start looking for a laminator; I believe that there are
> > some additional recommendations here in the group files.
> > 
> > Cheers,
> > Ted
> > 
> > --- In Homebrew_PCBs@yahoogroups.com, "Kevin Morgan" <prizes@> 
> wrote:
> > >
> > > Hi,
> > > 
> > > Tonight I got very good results with a Brother 2040 laser that I 
> got 
> > > recently. I used Kodak Ultimate Picture Paper, and a Techno 
> LM1910 
> > > laminator.
> > > 
> > > The paper is some that I've had sitting around for a couple of 
> years... 
> > > borderless 4x6. The laser printer and laminator I bought at Fry's 
> over 
> > > the holidays. I forget the exact price, but I think it was a 
> little 
> > > over $100 for both.
> > > 
> > > After scrubbing the board with 2000 grit wet-or-dry sandpaper, I 
> ran 
> > > the paper through the laminator 4 times on the highest heat 
> setting, 
> > > and on the "foil" setting. The board was 1/16" single sided that 
> I 
> > > bought from MPJA. The laminator didn't really choke on the board, 
> > > although I suspect it's not really designed for something that 
> thick. I 
> > > had put the picture paper and board inside a folded sheet of 
> ordinary 
> > > laser printer paper.
> > > 
> > > After the four passes, the Kodak picture paper was stuck to the 
> laser 
> > > printer paper, and also the board. After dunking in cold water, I 
> > > carefully peeled off the picture paper (it took about 20 seconds, 
> I 
> > > think). It came off cleanly, leaving almost all of the toner on 
> the 
> > > board.
> > > 
> > > I'm not that experienced with TT, so I don't know how repeatable 
> this 
> > > is, but I'm very happy with this experiment.
> > > 
> > > Kevin
> > ---snip---
> >
>