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Thread: Fabrication Shop Experience

              
   
  1. #1
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    Fabrication Shop Experience

    Welcome to the first open discussion forum among fabrication shops!
    Technicians, monitors, and owners alike, please contribute to broaden the knowledge base of commercial 3D printing.

    topics
    -successful prints
    -troubleshooting
    -’error log’ questions and tips
    -mechanical modifications
    -types of printers
    -etc.

    If you feel some topic deserves an isolated thread, start one under the parent "College and Professional Schools"

  2. #2
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    Welcome to the forum.

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    I work with a ZCorp 310 and 650.
    The 310, operating since 2008, has always zp131 powder. Has anyone switched to zp150? I'm curious what differences you might have noticed. I know the models take a whiter color, but I'm wondering if surfaces can be printed thinner.

    On the subject of powder, not long after the 3D room's air-conditioner broke down, models began to fail. The binder did not seem to bond with the powder. Models crumbled to the touch and extraction efforts proved fruitless. Our hypothesis points toward high temperature and humidity affecting the powder.
    Has anyone had similar problems?

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    A projet 660pro arrived last week and is in operation.

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    I use a Spectrum 510. It has an internal heater, which helps the parts set hard. The printing process doesn't even start until it reaches 100F. So I don't think heat, by itself, has a deleterious effect on the setting of the powder. The humidity could be an issue, though - perhaps it has hydrated the powder? Did the same powder work when the AC was restored?

    Andrew Werby
    www.computersculpture.com

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    I think you're right Andrew, heat alone should not negatively affect the prints. However the humidity reached about 70% at its worst. The powder, kept in plastic bags, was noticeably more gray (hydrated?). We decided the powder was compromised and after the reinstallation of AC, gave 3 days recovery time for the powder. During these three days the powder was continually cycled and recycled in and out of the machines. By removing, sifting and replacing the powder in the 310, print quality was restored.
    To prevent the humidity problem from affecting the 650, powder was regularly 'fluidized' (option in the service menu).
    How common is the issue of humidity and hydrated powder for gypsum powder printers?

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    The brand-new 3D Systems 660 projet is down. The problem has been diagnosed to either the ribbon cable or the pogo card.
    Symptoms began with a persistent "2305:1 fast axis settle error". All steps in the machine manual were followed proper to no avail.
    Eventually the machine began laying down binder for an alignment slab 5" off the print bed.
    Tech support diagnosed the problem and parts are in the mail. Should be operational 7 days after first failure.

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