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MTC registration problem

I have an 8.5x11 sheet of small stickers. They were printed with reg marks at the printers, and am cutting them on the Zing Air. MTC laser marks the reg marks and the cuts look fine until the last third or so of the sheet, when they start becoming misaligned. There seems to be a problem with the AI  .pdf file I sent to the printer and the MTC file that made the cutlines. How can I correct this so that I can get the cutlines to match over the entire sheet?

Comments

  • SandyMcCSandyMcC Member Posts: 7,372
    That's called "drift" and it occurs as a result of friction... the movement of the mat in and out of the cutter.  We see this with all cutters trying to cut a large number of shapes in a PNC situation. 

    Here are some things you can do to try to reduce the friction:

    (1) Don't have the blade cutting any deeper than necessary. Since these are stickers, I assume your blade is set to only cut the top layer, so this shouldn't apply. But if your blade IS cutting all the way through, try reducing the exposure so that it can't cut into the mat and possibly drag it.

    (2) Lower the cut speed by one or two settings. If the mat is moving too quickly in and out that can introduce slippage.

    (3) Make sure the bottom of the mat is very clean and there's nothing sticky that could cause drag.

    (4) Make sure the pinch wheels and the grit shafts are also clean and not sticky. They can be cleaned with a lint-free rag and isopropyl alcohol.

    (5) Make sure the mat isn't being obstructed in any way by anything.  It should be in the middle of the Zing Air with the outside pinch wheels clearly over the mat.  Make sure the mat isn't dragging on any of the cable or bumping into anything on the sides. 

    If none of these things help, you may have to split your PNC into two parts so that you can cut twice and only do half as many repeats at one time. I can help you with that if you already have a lot of sheets preprinted. 
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • squashblossomsquashblossom Member Posts: 25
    I will follow these 5 points, but YES, would also like to learn how to split my PNC into two parts. All my stickers have two small sticker sheets (identical) on one 8.5x11 sheet. This would really help keep things registered I think.

  • SandyMcCSandyMcC Member Posts: 7,372
    You would use the same registration marks but have something like a small "L" shape in each corner to define where the reg marks will be printed. That way, you can keep those "L" marks turned on for both cuts and then just have the repeats split into two halves.  I would have an upper half and a lower half because that would reduce the up/down movement of the mat.  Does that makes sense?  If not, I can make up a sample file for you to examine.
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
  • Crazy_Mr_ZingCrazy_Mr_Zing Member Posts: 3,290
    edited January 9
    Are you having the pdf file printed via a third party
    I think the quickest way to help you would by seeing the AI, pdf and MTC files if the check out the may point to either something the printer is doing or a issue arising when cutting
    I am willing to take a look I can send you my dropbox link via private message if you would like me too

    I Use Zing Air, Make The Cut - Pop Card Studio, WinXP- Win7 -Win10
    Paper Modellers I Revere Marc Hagan-Guirey ----- Yoshinobu Miyamoto ----- Peter Dahmen
    Gallery ID #26944 ----- Link to My Cloud Have a Look your Welcome to Make Use of the Files
  • squashblossomsquashblossom Member Posts: 25
    Sandy - a picture would be best for me.  Crazy Mr Zing - send me your link and I will share the files for you to review. Thanks!
  • SandyMcCSandyMcC Member Posts: 7,372
    Okay... here are some screenshots to explain how it would work:

    (1) I have added two "L" shapes in the upper right and lower left corners that are outside the boundaries of a PNC project I made up. Those marks now define a new outside boundary. 


    (2) If I turn on Show reg marks, you'll see that the reg marks are now aligned with the "L" shapes. 



    (3) Here's the Layers Panel showing 4 layers. Note Layer 1are the reds bows. They only need to be printed and if you are in Illustrator, for example, you could skip exporting them because they won't be needed in MTC.



    Note:

    Layer 1: contains the reds bows. They only need to be printed and if you are in Illustrator, for example, you could skip exporting them because they won't be needed in MTC.

    Layer 2: contains the top four rows of the circles around the bows. They are typically not printed unless you want a border around your images.  In that case, they would be printed. 

    Layer 3: contains the bottom four rows and the same applies as in Layer 2.

    Layer 4: contains the two "L" shapes that are now defining where the reg marks will be. They must be printed and must be showing for both PNC processes.

    When you get ready to do the cutting process, you would hide Layer 3 and send Layer 2 and Layer 4.  After that's completed, you would hide Layer 2 and show Layer 3 and send Layer 3 and 4.  

    Yes, Layer 4 will be cut twice but that shouldn't be a problem. It's just a L shape that's outside your project.   If you cannot see how this would work with YOUR file, then please just send your MTC file to me at [email protected] and I'll explain how I would handle it. 
    Sandy McCauley
    Cutting with KNK Force, Maxx Air, Zing Orbit
    Need help with your KNK? Visit this link: http://knkusa.com/contact/
    Over 90 free MTC videos: http://www.iloveknk.com/support/mtc-support/
    Latest KNK / MTC User Manuals: http://www.iloveknk.com/Support/user-manuals/
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