Entries in this division are representative applications of plastic in industry.
PL-1 BASIC PLASTICS
Any entry which includes casting, inlaying, shaping, forming, or carving is
eligible. A complete set of plans must accompany the project. Any casting that
was produced from a student made mold must be accompanied by that mold. All
other castings will be assumed to have been produced from commercial molds and
therefore do not require a drawing. Examples: (Paperweight, bookends, night
lamp, penholder, earrings, or broach.)
Awards in Groups A, B, C, and E.
PL-2 INDUSTRIAL PLASTICS
Any entry in which industrial processes or forming and fabrication of plastic
are the major operations required is eligible. Also included are thermoforming,
injection molding, compression molding, and transfer molding articles. Student-made
molds must accompany the project. Examples: (Picture frames, bookends, laminated
bow, bowl, vase, lamp, or any item representing the commercial or industrial
processes and uses of plastics.) A complete set of plans must accompany the
project.
Awards in Groups A, B, C, D, and E.
PL-3 PLASTICS COMPUTER AIDED MACHINING
This classification includes any project in which the machining of the project
constitutes the major operation with the aid of a computer interface. A complete
set of plans must accompany the project. A printout of NC code must be included.
Examples: (Candle holder, candy dish, game pieces, or lamp parts.)
Awards in Groups A, B, C, D, and E.