In my interpretation of this rule, the parts do not fit “volumetrically” (i.e. 36 cu. in. of plastic), but rather must be as if made from 6"x6"x1" of plastic. *However, does this imply that the parts must actually be made, or be possible to make from, a single piece of material? *
There are a number of ways in which a set of parts could be made that fit together to fit inside the 6"x6"x1" envelope, but are actually impossible to manufacture from a single block (including lost material from sawing/drilling, clearances, the ability to fit a tool between parts, etc).
Are teams allowed to use additive methods (i.e. 3d printing) to create plastic parts that fit within this envelope? What about creating/using thin films no larger than 6"×6"?
Also, are teams allowed to use multiple blocks of different materials, or must it all be the same type? I feel this questIon is clearer in the sheet metal allowance because it says OR, but not here, given this ruling.
Thanks for answering our very nitpicky questions time and again.