Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Trevor White <trevor.white100@...> wrote:
>
> Hi all.
> 
> I have been looking into making 4 layer boards. I have most stages 
> sorted but the big stumbling block is the bonding of the layers 
> together. It seems a special press is required that has enough pressure, 
> exhausts the gases away and generates the correct temperatures. I am 
> surprised its so difficult. I have been told second hand presses cost 
> £4000 to £5000. This is totally out of budget for me. Has anyone any 
> experience/thoughts/comments on bonding boards together?
> 
> Thanks
> 
> Trev
>

I've only done it once and I glued 2 double sided boards with epoxy, but added a sheet of fine fibreglass tissue between them also

worked, but was fiddly

alignment was assured by drilling outer holes, soldering a component lead in and snipping off (leaving about 0.5mm protruding)

glued up between 2 steel blocks in the vice