Robotics Education & Competition Foundation
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Official Q&A: VEX U Robotics Competition 2024-2025: High Stakes

Usage Guidelines All Questions

Legality of non-homogeneous materials


JHAWK
7-Jul-2024

<VUR4>

Are non-homogeneous materials (such as granite and concrete) be legal assuming they meet all of the other material to be considered raw stock?

For example, the argument can be made that granite is 1 material and thus if it is bought in a cube, it is a legal material. However, the argument could also be made that since granite is a non-homogeneous materials, the VURC team is actually buying feldspar, quartz, mica, and amphibole minerals in a pre-assembled component. Which interpretation is correct? A link to an example material is provided: https://www.grainger.com/product/STARRETT-Granite-6-Face-Cube-Grade-6RDH8

Answered by committee
8-Aug-2024

While we cannot provide a blanket answer for all non-homogeneous materials, they could be considered legal if they meet all of the rules for legal Raw Stock in <VUR4>. As stated in that rule's red box, "unusual parts should be expected to receive increased scrutiny" and "If any materials do not easily fall into one of these categories, then that is probably an indication that it is not intended to be a legal type of Raw Stock." Raw Stock is also subject to safety rules when determining legality, including <VUR6>. Final determination on the legality of a specific material must be made by the Head Referee at your event.