Question for Channel Creasing Matrix users - ECLetterpress

Message from discussion Question for Channel Creasing Matrix users

matthenderson62@gmail.com

More options Sep 29 2007, 8:32 pm

From: "matthenderso...@gmail.com" <matthenderso...@gmail.com>

Date: Sun, 30 Sep 2007 00:32:16 -0000

Local: Sat, Sep 29 2007 8:32 pm

Subject: Re: Question for Channel Creasing Matrix users

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I have had good success using a crush score on my Miehle V-50.
My set up would be to run an 8.5x11 with the gripper on the 8.5 inch
side. (horizontal rules)
I pack my cylinder up to specs and take a strip of shipping carton tap
and place it where the rule hits the Tympan.
This tape is optional but allows you to reuse the tympan. (keeps the
tape from ripping off the paper fibers)
The next step is to use four or five strips of 3M (256?) white art
tape (masking tape works).
Take the strips of tape and lay them on top of each other building up
a thick layer of tape.
It's pretty much guess work until you figure out what works with your
rule height.
Next slowly inch the press until the rule scores the tape and double
check to make sure you're not hitting it too hard.
Now I would run a few test sheets to see if it's scoring properly.

I use crush scores all the time and prefer this method for vertical
scores.

I hope this helps

Matt

On Aug 6, 6:46 pm, Beez <bea...@yahoo.com> wrote:

> Hello All,

> Hopefully this post is not too far OFF topic. If it is, please forgive
> the intrusion.

> I have a question for operators of letterpress. I have a Miehle
> Vertical on which I'm trying to score a tri-fold brochure. The
> brochure is printed on 100# Gloss Text which normally wouldn't require
> a score, but it was printed digitally(toner based) and is cracking
> like crazy on the folder.

> Here's my question: Is channel matrix appropriate to use in this case,
> with the paper being so light? If so, what size? I had #40(Buff) here
> already, but the score that it created was too deep, or too wide, or
> both so that when the sheet is folded the fold is rectangular instead
> of U shaped. Does that make any sense?

> Anyway, after calling Wagner Die Supply, they recommended #32(Orange),
> but it's doing the same thing. Honestly, I can't tell the difference
> in the score created by the #32 as opposed to the #40. They both look
> the same to me.

> Any suggestions?

> TIA,
> Da

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