Motorize it to create even smooth feed. you could pretty easily build
a speed controller and using a gearhead motor you'd get enough torque
at a slow feed. fuse in one pass. of course, you can also buy speed
controllers pretty cheap. I think you do want reverse (in case of jams).
Add a thermostat and a temp indicator. You'd have a pretty good fuser
--- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...> wrote:
>
> It's 8.5" I paid $10 for it because nobody knew what it was. It has
> two red rubebr rollers which are heated, the laminated item fits
> between them. Those two rollers are not motorized (!). There is knob
> on the side which is turned by hand. The PCB fits betwenn the
> rollers, gets fed between them approx 1" by turning the know on the
> right side and then a larger black rubber roller (non heated) pickes
> up the PCB and pulls it between the previously described heated
> rollers...
>
> What that means that the PCB is pulled by hand and that means it may
> not get evenly heated, however our trick is to feed back again, maybe
> from different angles.
>
> The machine robustness is stunning and it runs really hot.
>
> I own a big thank you to this group for mentioning the laminators so
> many times.
>
> Mike
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "Steve" <alienrelics@y...>
> wrote:
> >
> > --- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...>
> wrote:
> > ...
> > > Then I happened to come accross a GBC laminator, one of those
> larger
> > > units, probably commercial, from 20 years ago- it uses rolls of
> > > plastic for laminating. I tried a quick lamination and it runs
> really
> > > nicely, requires no modification and the temp can be adjusted by
> > > changing the pot setting on the sensots touching the rollers.
> >
> > How wide? Those things are expensive! You got a great find.
> >
> > > PS Steve, you're right. I better keep that fabulous Nuarc 26k uv
> > > exposure unit.
> >
> > ;')
> >
> > Steve