[Leica] Cutting roll paper

[jayanand at gmail.com (Jayanand Govindaraj)]

Richard,
I send paper to be cut to a friend who runs a printing press with state of
the art computerised paper cutting machines, normally sheets of A2 into 2 X
A3, or 4 X A4. If you can get into a similar arrangement there, its the
easiest way, even if you have to pay for it.
Cheers
Jayanand

On Dec 12, 2007 12:21 PM, Adam Bridge <abridge@gmail.com> wrote:

> Most rolled paper is cut with very sharp roller knives as the paper is
> wound from the source roll to the take-up roll.
>
> Paper that is cut into flat-sheets from rolls is run through a
> "breaker" in which the paper travels over two sets of knife edges set
> at 45 degrees across the paper to "break" the curl in the paper. After
> the paper is broken it passes under a rotary knife that slices the
> sheets into a close approximation of the correct size.
>
> For very high-quality papers, especially those with two finished
> edges, I'm uncertain about how the process works.
>
> Flat sheets are then piled and very large hydraulic slicers can cut
> through stacks of paper up to about 4" thick which is some serious
> cutting. The knife slices down and across while a plate presses down
> on the paper to keep it from shifting.
>
> As a child all of these machines used to both fascinate and frighten
> me. The large rotating knife was usually moving too fast to see but
> when it slowed down it's complex curve (so it would actually slice the
> paper) was obvious and frightening. The hydraulic flat-sheet cutter
> was particularly un-nerving.
>
> The least scary - but the one that was the most dangerous - was the
> one that cut large rolls into smaller rolls. At least twice there were
> serious accidents involving that machine.
>
> That was in pre-OSHA days. Now these machines all have serious safety
> devices that weren't imagined in the 50s.
>
> Adam
>
> On Dec 11, 2007 6:10 PM, Vick Ko <vick.ko@sympatico.ca> wrote:
> > I saw a show for my 6-year old son, where paper rolls were cut at a
> factory.
> >
> > It showed using a radial arm saw.
> >
> > No joking.  I suppose with the right blade, it would do a good job.
> >
> >  ....Vick
> >
> >
> > -----Original Message-----
> > From: lug-bounces+vick.ko=sympatico.ca@leica-users.org
> > [mailto:lug-bounces+vick.ko=sympatico.ca@leica-users.org] On Behalf Of
> > Richard
> > Sent: Tuesday, December 11, 2007 9:01 PM
> > To: lug-leica-users.org
> > Subject: [Leica] Cutting roll paper
> >
> > Does anyone know how or who would cut inkjet paper roll to narrower
> width?
> > The rice paper roll only comes in 44" and I need it to fit in a 24"
> printer.
> > Thanks
> >
> >
> > // richard (This email is for mailing lists. To reach me directly,
> please
> > use richard at imagecraft.com)
> >
> >
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