Our mentor has been out for the last few days, and I don’t have the login for Robot Events. Could someone please ask these questions on the Q&A?
Question 1: R11 Clarifications
"Certain non-VEX screws, nuts, and washers are allowed. Robots may use any commercially
available #4, #6, #8, M3, M3.5, or M4 screw up to 2” (50.8mm) long (nominal), and any commercially
available nut, washer, and/or spacer (up to 2” / 50.8mm long) to fit these screws.
The intent of the rule is to allow teams to purchase their own commodity hardware without introducing additional functionality not found in standard VEX equipment. It is up to inspectors to determine
whether the non-VEX hardware has introduced additional functionality or not."
I have a few questions about this rule:
1.) Based on the wording “to fit these screws” are the spacers only allowed for use on screws? (G3 really covers this, just for verification.)
2.) Would metal spacers introduce additional functionality, and is this always the decision of the inspectors?
3.) I am aware last year it was ruled legal to use M1.6x16mm screws as replacements in motor housing, does that carry on to this year, and in general, do rulings of the GDC carry over into the next season?
Question 2: R9 and Turning Point Flags
“A limited amount of custom plastic is allowed. Robots may use non-shattering plastic from the following list; polycarbonate (Lexan), acetel monopolymer (Delrin), acetal copolymer (Acetron GP), POM (acetal), ABS, PEEK, PET, HDPE, LDPE, Nylon (all grades), Polypropylene, FEP; as cut from a single 12” x 24” sheet up to 0.070” thick.
a. Shattering plastic, such as acrylic, is prohibited.
b. Plastic may be mechanically altered by cutting, drilling, bending etc. It cannot be chemically
treated, melted, or cast. Heating polycarbonate to aid in bending is acceptable.”
Under R5 is states “Using VEX apparel, competition support materials, packaging, or other non-robot products on a VEX Robotics Competition Robot goes against the spirit of this rule and is not permitted.”
1.) Would a VEX Turning Point flag be legal use of custom plastic, assuming it meets all R9 criterion?
2.) Would using multiple pieces, assuming they do could be cut from one 12"x24" piece of legal plastic, be allowed?