Are we allowed to use rubber strings in VRC competition?

Hello everyone,

I knew we can use any commercial #32, #64, and 117B rubber bands according to the R7 in the game manual. However, can we use long rubber strings? I was told that many teams used 16/32 rubber tubs, or 1/8 thick rubber strings even in the world championship. But I could not find the related rules in the game manual.

We need to use a long stretchy string for our catapult design, and it’s very annoying to connect multiple #64 rubber bands for that.

Thanks a lot!

I believe the long rubber strings you’re referring to is surgical tubing which you can purchase from the Vex robotics website. You will see that it is a legal V5 part.

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Thanks a lot, I found it here

So, I guess the hollow tubes are allowed, but the solid elastic strings are illegal.

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That is correct, you may use the surgical tubing or the appropriate rubber bands, but other elastic strings are NOT allowed.

Especially as per this recent Q & A.

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