anything known on shrinkage

Discussion in 'Technologies and Hardware' started by raalst, Feb 1, 2009.

  1. raalst
    raalst New Member

    Does anybody have any information as to how dimensionally stable the
    models are ? I consider creating a piston, which has to seal with an o-ring.
    If the material shrinks (or expands) over time or with temperature
    I would like to know.

    I read one PDF but it seemed primairly about health and safety aspects.

    anybody ?

    Ronald van Aalst

  2. robert
    robert New Member
    Hi Ronald,

    The models are dimensionally accurate up to 100 micron meter.

    Best regards,

  3. cstratton
    cstratton New Member
    Shrinkage is common when injection molding because of the heat and pressure used in the process. However, 3D printing has much lower stress on the material. Temperatures are localized and pressure is kept at room levels.