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Official Q&A: VRC 2020-2021: Change Up
682: Is PETG a legal material under R10?
R10 and VUR3a both list "PET" as legal plastics for use in VRC and VEXU, respectively. Does this mean only PETE, or does it also include other PET-type plastics such as PETG?
PETG is a commonly-used material in FDM 3D printing, so is already legal in VEXU for that purpose under VUR3d. However, for the purposes of this question I'm interested in the legality of VRC teams making custom parts from legal-size PETG sheets under R10, or VEXU teams making custom parts from PETG stock of any size under VUR3.
(Although this question asks about both VRC and VEXU, I posted it in the VRC Q&A because the list of legal materials is exactly the same in both rules, and thus I assume the answer will be the same for both.)
Thanks!
Yes, PETG would be considered a "PET-type" plastic for the purposes of R10 and VUR3-a, assuming that it is being utilized within the same intent as the respective rules of each program.
That is to say - in VRC, governed by R10, it would need to have been cut from a single 12" x 24" sheet up to 0.070" thick. Utilizing PETG as a 3D printer filament would still not be permissible, just as using any of the other materials listed in R10 as a 3D printer filament would not be permissible.