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RE: [PPLetterpress] die cutting jacket

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  • wa0dfw@copper.net
    Short answer: anything from a flat piece of sheet metal (preferrably stainless steel) to a cutsom snap-on jacket to a hardened and ground plate from
    Message 1 of 9 , Jan 31, 2007
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      Short answer: anything from a flat piece of sheet metal (preferrably
      stainless steel) to a cutsom "snap-on jacket" to a hardened and
      ground plate from Bar-Plate comany.

      I posted a monologue on die cutting a few years ago. Many have found
      it useful.

      Read at:

      http://tinyurl.com/256vbp

      Mo


      >Could someone please explain to me what a die cutting jacket is? I
      >recently bought an 8x12 Chandler Price so that I could experiment
      >with
      >die cutting. I've read several posts saying that you need a jacket or
      >slip or something, and I'm wondering if it is something my father
      >could make for me in his machine shop. I just need to see a picture
      >of one or have it described for me. Thanks so much!
      >
    • Sarah
      Mo, I couldn t get that link to work, it said something about login required. I would love to read your monologue, if I can get to it somehow.
      Message 2 of 9 , Feb 1, 2007
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        Mo, I couldn't get that link to work, it said something about "login
        required." I would love to read your monologue, if I can get to it
        somehow.
      • wa0dfw@copper.net
        I don t know why you have a problem logging in...you use your email address and password. Anyway, here is the whole thing from that site, unedited. Mo Date:
        Message 3 of 9 , Feb 1, 2007
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          I don't know why you have a problem logging in...you use your email
          address and password.

          Anyway, here is the whole thing from that site, unedited.

          Mo




          Date: Fri, 2 Aug 2002 13:10:01 -0600
          Reply-To: Letterpress Discussion List <LETPRESS@...>
          Sender: Letterpress Discussion List <LETPRESS@...>
          From: Leonard W Molberg <mail-to-mo@...>
          Subject: Die cutting - a short primer - it's not that difficult!
          Content-Type: text/plain; charset=us-ascii

          I'm surprised at some of you who haven't tried it. It is really quite
          a
          simple process, though, like printing, can have it's challenging
          moments.

          It's really nothing more than a straight knife edged rule which, if
          serrated, would be a perfing rule. I assume you all perf occasionally.
          Use a perfing rule against the side of another rule and you've the
          simplest, cheapest and sometimes best perfing setup.

          Die cutting is similar, you just do it, more often than not, in other
          than a straight line. If you want to just slit something just use a
          piece
          of cutting rule like a perfing rule.

          You need three things - a letterpress, a steel rule die (usually made
          by
          a die making specialist) and a die cutting plate or jacket. It can be
          done on a cylinder, but I'll stick with platen presses here (I do
          almost
          all my die cutting on Kluges)

          A simple piece of stainless steel sheet, about 20-22 gage, will slip
          under the tympan inplace of the pressboard. If your platen is set
          fairly
          high you will probably want to order the die with .918 rule, but .937
          seems to be more standard for die cutters for some unknown (at least
          to
          me) reason. A piece of mild steel sheet will work, even cut from the
          bottom of a galley, but the die seems to raise a 'burr' on it which
          fights you when pulling the piece out. Stainless doesn't seem to do
          that
          for some reason. You might be able to get a piece from a local sheet
          metal shop, cut to your platen size.

          For narrow dies, you can tape down the side of a perf or cutting or
          scoring rule to cut against with good results.

          If you decide to spend more ( a LOT more!) money, you can oder a
          hardened
          and ground steel die cutting plate for your platen, but for simple
          jobs
          the cheaper plate is quite adequate. If you're careful about your
          impression and makeready, you will not "emboss" the plate and it can
          be
          reused hundreds of times. Even if you slightly impress it, it probably
          won't keep you from reusing it. I've seen some in pretty bad shape and
          still serving well. If you get careless, well...it's just like getting
          careless any other way. Bring up the platen packing underneath until
          the
          die just cuts properly, level the platen with the platen screws if
          necessary, then if any piece of the die rule doesn't want to quite
          cut,
          makeready under the bottom of the die with "lick and stick" gummed
          stock
          or tape or whatever you wish, just like bringing up a low spot of your
          type from under the type, rather than trying to makeready under the
          tympan.

          You can also have combination cut/score dies made, but it gets more
          complicated, as you have to consider the stock thickness and order the
          score rules appropriately high. On cylinder presses, the dies need to
          have higher rules in one direction than the other, so it pays to start
          simple.

          You can put the plate under the tympan, bring up your packing until it
          just "clicks" through the tympan, then cut a margin around the die
          area
          (preferably after setting your gage pins) then tape around it with
          Scotch
          tape just outside the die area. If your clearance is too tight, fasten
          the plate down on top and double sticky tape home made gage pins of 6
          pt
          slugs to the plate. I do this all the time, the Scotch double sticky
          tape
          is thin enough that it doesn't cause problems and it stays put even
          with
          the press at higher speeds. You can double sticky tape a "tongue"
          made of
          2 pt lead to the top of the slug. If you nick that kind of gage pin or
          tongue, you probably won't damage the rule in the die.

          Lock up the die just as you would any other job and, of course, remove
          the rollers from the press before you die cut.

          If you have a real problem getting the sheet out of the press without
          it
          coming apart, you can "nick" the rules slightly to provide a very thin
          bridge to hold the sheet together, but when hand feeding it should
          not be
          a big problem.

          You'll figure out things as you go, but it's really a fairly simple
          operation, especially things like circles, windows in covers, and
          other
          simpler shapes. You can even cut your own rules for rectangular or
          square
          holes and lock them up just as you would any other form. If your lead
          and
          slug cutter is good and sharp, you can cut rule on the back side
          without
          hurting the cutter, then you can slighly bevel the ends on a bench
          grinder to get a tight corner. Then, if you wish to keep the setup you
          can cut wood and glue around the rules, using your chase and quoins to
          clamp them while glueing. I have several home made dies made this way.

          You will need "corking" or ejection rubber around the rules to keep
          the
          sheets from sticking on the cutting rule, especially in corners or
          holes
          or whatever. You can use half inch thick weather stripping rubber
          with a
          sticky back with good success, though die makers have many special
          types
          of "corking" available to suit the application.

          Rolodex cards are easy to die cut with a good die, but harder to get
          out
          of the sheet due to the little slots in the bottom wanting to hang
          on. I
          have my rolodex dies made with a rule clear across the bottom, then
          the
          small pieces come out over a home made "striping" die with a home made
          punch and hammer. I just finished a 43,000 run of 2-up door hangars
          and
          have a simple stripping die made of a piece of die board (plywood or
          anything else) with two holes slightly larger than the punched hole,
          set
          up in a spare chase with a few reglets sticking up at approximately
          the
          gage pin locations. This allows me to punch out a whole stack of
          holes. I
          try to keep the die set up to allow the piece to come out whole, then
          break out the die cut places in stacks.

          Be inventive. I'll try to answer questions if you have any, as would
          probably a hundred other list members.

          Mo
        • Steve Robison
          Sarah, To access LETPRESS archives, I m pretty sure you need to be a member of the LETPRESS list. To become a member of the LETPRESS list, go to this link and
          Message 4 of 9 , Feb 2, 2007
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            Sarah,

            To access LETPRESS archives, I'm pretty sure you need
            to be a member of the LETPRESS list.

            To become a member of the LETPRESS list, go to this
            link and sign up.

            https://listserv.unb.ca/cgi-bin/wa

            If you don't need to be a member of the list to see
            the archives, perhaps someone else on this list can
            tell you how to get there.

            Best wishes,

            --Steve

            Steve Robison
            Belmont CA (just south of San Francisco)



            --- Sarah <smmangel7@...> wrote:

            > Mo, I couldn't get that link to work, it said
            > something about "login
            > required." I would love to read your monologue, if I
            > can get to it
            > somehow.
            >
            >
            >
            >
            > Yahoo! Groups Links
            >
            >
            > mailto:PPLetterpress-fullfeatured@yahoogroups.com
            >
            >
            >


            Steve Robison
            robisonsteve@...



            ____________________________________________________________________________________
            Any questions? Get answers on any topic at www.Answers.yahoo.com. Try it now.
          • Gerald Lange
            Steve When UNB upgraded the Listserv software about a year ago, public access to the archive was no longer available. The Letpress archives is here:
            Message 5 of 9 , Feb 3, 2007
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              Steve

              When UNB upgraded the Listserv software about a year ago, public access
              to the archive was no longer available. The Letpress archives is here:

              https://listserv.unb.ca/archives/letpress.html

              There might be subscription access there as well.

              Though I suspect, as Letpress is looking more and more like an assisted
              living community and pickle barrel round table, for the future, the
              hobbyist might better be served by more specific lists such as your

              http://groups.yahoo.com/group/sfletterpress
              or
              Briar Press's
              http://www.briarpress.org/discussion

              and the linecaster by Speed Gray's
              http://groups.yahoo.com/group/IntertypeWorld/

              Gerald
              http://BielerPress.blogspot.com


              Steve Robison wrote:
              > Sarah,
              >
              > To access LETPRESS archives, I'm pretty sure you need
              > to be a member of the LETPRESS list.
              >
              > To become a member of the LETPRESS list, go to this
              > link and sign up.
              >
              > https://listserv.unb.ca/cgi-bin/wa
              >
              > If you don't need to be a member of the list to see
              > the archives, perhaps someone else on this list can
              > tell you how to get there.
              >
              > Best wishes,
              >
              > --Steve
              >
              > Steve Robison
              > Belmont CA (just south of San Francisco)
              >
              >
              >
              > --- Sarah <smmangel7@...> wrote:
              >
              >
              >> Mo, I couldn't get that link to work, it said
              >> something about "login
              >> required." I would love to read your monologue, if I
              >> can get to it
              >> somehow.
              >>
              >>
            • typetom@aol.com
              In a message dated 2/3/2007, Bieler@att.net writes: as Letpress is looking more and more like an assisted living community and pickle barrel round table Dear
              Message 6 of 9 , Feb 3, 2007
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                In a message dated 2/3/2007, Bieler@... writes:

                as Letpress is looking more and more like an assisted
                living community and pickle barrel round table


                Dear Gerald,
                I don't understand why you feel it necessary to be so snotty.
                Tom

                Tom Parson
                Now It's Up To You Publications
                157 S. Logan, Denver CO 80209
                (303) 777-8951 home
                (720) 480-5358 cell phone
                http://members.aol.com/typetom


                [Non-text portions of this message have been removed]
              • nagraph1
                Especially when the restaurant I own is called the Pickle Barrel, and my best memories of the occupation from hell are sitting at the tables chatting with
                Message 7 of 9 , Feb 3, 2007
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                  Especially when the restaurant I own is called the Pickle Barrel, and
                  my best memories of the occupation from hell are sitting at the tables
                  chatting with friends, and especially my visiting printing friends.
                  But the list I see having a pretty straight letterpress theme with no
                  bs is the Intertype one run by Speed Gray. There was a posting on
                  Ludlow orfices with back up photos this morning that was especially
                  interesting for me. Even PPL runs into the weeds more often than not
                  lately.

                  Fritz

                  > Dear Gerald,
                  > I don't understand why you feel it necessary to be so snotty.
                  > Tom
                  >
                  > Tom Parson
                  > Now It's Up To You Publications
                  > 157 S. Logan, Denver CO 80209
                  > (303) 777-8951 home
                  > (720) 480-5358 cell phone
                  > http://members.aol.com/typetom
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