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Thread: Help With Chipboard...PLEASE!

  1. #16
    Edi

    If you are using adhesive to paste the sheets together it's a good bet that the adhesive may be the culprit. May you can experiment with some other types of adhesive.

    I just ran another piece changing my settings closer to Mike Mckenzies recommendation and got zero browning on the back cover of a spiral notebook.
    Mike Null

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  2. #17
    Join Date
    Feb 2011
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    I should probably mention that this stuff is a lot thicker than notebook backing. It is almost 1/16" thick and even thicker when I add the paper.
    It chars bare or covered.
    I'm just a newbie looking to learn all I can
    Epilog Mini 18-30 Watt Laser

  3. #18
    Edi

    If you can be specific about the thicknesses and the adhesive I'm sure some of us will experiment using as close to your material as we can.
    Mike Null

    St. Louis Laser, Inc.

    Trotec Speedy 300, 80 watt
    Gravograph IS400
    Woodworking shop CLTT and Laser Sublimation
    Dye Sublimation
    CorelDraw X5, X7

  4. #19
    Join Date
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    You really need nitrogen rather than air assist to cut cardboard to minimise charring
    However if you don't want to use an inert gas, try this : set ppi low , just above discrete perforation and use strong air assist - mask the material with paper based low tack sign vinyl application tape to stop surface marring. The freq/ppi is how many holes the laser drills in a set distance - the laser cuts by drilling lots of holes , closely spaced so they overlap , too little makes cuts like perforations , too much overlap puts a lot of heat into the material leading to charring.
    You might of course just have too little power to cut this stuff cleanly , lasers work by vaporising and not "burning" , too little power density leads to burning. Think of making a hole thru paper with a butane soldering torch or a bic lighter - both will work but the hotter and thinner torch flame will make a clean hole and the bic's hole will be messy.
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  5. #20
    Join Date
    Feb 2011
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    Mike...The chipboard is about 1/16" thick and I am using a Scotch/3M glue stick to glue the cardstock down and a Xyron sticker maker to add the patterned paper on top.

    Rodne...I think I'll try masking next so I can use the air assist. Thanks.
    And maybe you're right...I may just not have enough power to cut nicely at this thickness.

    Thanks for all your replies...I'll keep on experimenting!
    I'm just a newbie looking to learn all I can
    Epilog Mini 18-30 Watt Laser

  6. #21
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    Have you verified your focus?
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  7. #22
    Join Date
    Feb 2011
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    Dan...No, I need to get some material first. I haven't had a chance to run to the store...I've been working 10 hr days all week and this weekend.
    I'll get some anodized aluminum and check it out. Thank you for the how-to...I would not have known how to do that.
    I'm just a newbie looking to learn all I can
    Epilog Mini 18-30 Watt Laser

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