PolyJet 3D printer part design parameters
Posted by Robert Kiser on Tue, Jan 20, 2009 @ 09:25 AM
Rapid prototype systems have limitations on what they can produce. The PolyJet 3D printer is no exception. Use these parameters as one factor in determining if the PolyJet is an acceptable choice for you.
Minimum guaranteed wall thickness for PolyJet "hard" acrylics only: .024" (.61 millimeters).
Minimum distance between walls. This includes moving objets within the part: .008" (.2mm) - .020" (.5mm). This is geometry dependent, meaning, the larger the mass, the larger the gap between walls must be. This is needed because of the heat involved in the build process that causes some slight growth. In general, a .012" (.3mm) gap between wall suffices for most parts, but very large geometries i.e. thick blocks sitting next to each other, but separated by a gap, should have a gap of .020" (.5mm).
Minimum guaranteed wall thickness for PolyJet Tango rubber elastomers: .040" (1 millimeter). Same distances between walls used for the polyjet acrylics apply for the Tango rubber elastomers.
Note: These parameters also apply to the PolyJet Connex500 system.
