Author Topic: What job to print on a new auto?  (Read 6396 times)

Offline blue moon

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Re: What job to print on a new auto?
« Reply #30 on: December 12, 2011, 02:01:21 PM »
I know about the fine line from the flood, we set our micros inwards a smigen and changed indicating flag back to zero to allow the flood to clear the image (there's still more than enough vertical adjustment).  Anyway was just trying to help.

appreciate that! What does "changed indicating flag back to zero" mean? Maybe that's what we are missing. . . It also dawns on me that I was listing 17" as max because of the registration marks. If those were placed in different locations, we would gain another inch or two.

As far as the oversized prints, we would have to double index our eight color press to be able to fit something that big. That would give us four colors. The deal is, oversized screens and plattens encroach into the next print station's space thus the double index.

pierre
Yes, we've won our share of awards, and yes, I've tested stuff and read the scientific papers, but ultimately take everything I say with more than just a grain of salt! So if you are looking for trouble, just do as I say or even better, do something I said years ago!


Offline ebscreen

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Re: What job to print on a new auto?
« Reply #31 on: December 12, 2011, 02:37:37 PM »
Setting the flood straight up and down, hence making it as close to the squeegee as possible.

For the OP. If you want to learn how to print with your press, print a job you already
know how to do manually. If you want to test how well it was paralleled, expose
a screen with a halftone gradient (lpi of your choice) at the extreme corners of your print area
and running the length and width.


Offline squeegee

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Re: What job to print on a new auto?
« Reply #32 on: December 12, 2011, 04:50:13 PM »
Quote
appreciate that! What does "changed indicating flag back to zero" mean? Maybe that's what we are missing. . . It also dawns on me that I was listing 17" as max because of the registration marks. If those were placed in different locations, we would gain another inch or two.

As far as the oversized prints, we would have to double index our eight color press to be able to fit something that big. That would give us four colors. The deal is, oversized screens and plattens encroach into the next print station's space thus the double index.

pierre

Yea sure and yes we move the reg marks to the sides/other places as well in order to get the whole imprint area.  What I meant about micro marker/flag, on the vertical micro, I set them all inwards I think about a cm so the image can go a little higher on the screen and the flood still clear the image, then I reset the micro flag/indicator back to zero (by loosening the allen head) to make that our permanent starting point.  We set our floods to zero angle.  We've been able to do multi color prints with halftones/tight reg at 20" length without problems.  It just takes a little trial and error experimenting.

Offline ebscreen

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Re: What job to print on a new auto?
« Reply #33 on: December 12, 2011, 04:55:06 PM »
Do the E-Types have the removable front bars on the screen holders? This changes your start position in
relation to the screen. MHM's are already weird in that the start is 9" from OD as opposed to 6" for all other
machinery I've every seen, including flatstock presses. But we can print closer to the rear of the frame than
other machines. Backwards I suppose.


Offline squeegee

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Re: What job to print on a new auto?
« Reply #34 on: December 12, 2011, 05:38:57 PM »
Our normal start point is ~7" from OD, but we can start at ~6.5 which is what we do for large prints.  No removable bars, but I'm curious about what that is on your press, got a pic?

Offline ebscreen

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Re: What job to print on a new auto?
« Reply #35 on: December 12, 2011, 05:45:27 PM »
Basically a ~1" thick bar where the front of the screen clicks in, extends the screen back that much.
Picture wouldn't really show it, it looks like a piece of the screen holder.

Offline blue moon

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Re: What job to print on a new auto?
« Reply #36 on: December 12, 2011, 06:01:48 PM »
Basically a ~1" thick bar where the front of the screen clicks in, extends the screen back that much.
Picture wouldn't really show it, it looks like a piece of the screen holder.

definitely no bar here either . . .
Yes, we've won our share of awards, and yes, I've tested stuff and read the scientific papers, but ultimately take everything I say with more than just a grain of salt! So if you are looking for trouble, just do as I say or even better, do something I said years ago!