For years, the rule has always been 1/8 inch braided nylon rope, in other words “paracord” or something similar. Veteran teams typically have yards and yards of this stuff laying around the shop. For this game, you can get colored paracord at Hobby Lobby or your favorite craft store and make the referees job a little easier.
If your design use a some sort of preloaded string cannons, then do the refs a favor by getting red and blue! Otherwise, maybe pick a unique color like green or yellow so that your robot is easily distinguished from a team that is using red or blue. If everybody is going to use white paracord, get ready to spend until 8:00 p.m. at your tournaments while the referees try to score all the spaghetti!
I think this season the rule went towards more creative solutions, yarn, fishlines, kite strings, … I took what I saw as different approaches to end game I saw in competition and discussed with club today. Of course as I was speaking to kids, GDC released unscheduled game manual - all good. Teams will figure out right recipe for rope and weight ratio for each launching mechanism…
In anticipation ordered many spools of red and blue material!
My team was looking into Paracord as an option for our end-game expansion, but after our original string was deemed illegal because of the nov 1 rules we thought it would be best to ask the forum to clarify that if the packaging says 1/8 inch but the string is flat(sort of like shoe laces) that it would still count even though it’s no longer a cylinder shape. Any incite would be appreciated.
Clarification of rules happen on the Official Q&A - please look there as there is a question directly relating to flat string. It was not answered last time I looked. From a common sense perspective, I would err on the side of round string until Q&A answered.