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  • Bumper dimensions question

    The rules state that the bumpers have to be 8 inches on each exterior vertex of the robot.
    We have cut the side of the narrow end of the robot to be 6 inches of metal frame, the minimum size possible to have 2 angles (one for each side of the wheel base). The problem here is obviously we dont have 8 inches of bumper on the 6 inch side. Since one end of bumper can overhang past the adjacent side's bumper, so as to have full corner coverage, would that count towards our 2 inches? Or since there would be no metal frame backing it, is it illegal?

    See attached image.
    The End facing you are the 6 inch ends.
    The right side of the right edge can terminate at the edge of the metal frame, while the front end can overhang approximately 2 inches, the width of said right side bumper.
    Attached Files

  • #2
    Re: Bumper dimensions question

    Sorry, but you'll have to redesign. One of the updates last week made it clear that the 8" of bumper has to be supported by and attached to the frame at each end of the bumper.

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    • #3
      Re: Bumper dimensions question

      The lowest point on our frame is 8.5 inches from the floor. We do that by running a vertical wheel assembly below the frame. That might make a simple redesign for your bot...

      Neal

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      • #4
        Re: Bumper dimensions question

        Originally posted by Gary Voshol View Post
        Sorry, but you'll have to redesign. One of the updates last week made it clear that the 8" of bumper has to be supported by and attached to the frame at each end of the bumper.
        So your saying B is the eight inches and not A?
        Attached Files

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        • #5
          Re: Bumper dimensions question

          The measurement is the B length. However, in the attachment, B must be at least 8.75 inches, because it overlaps the 3/4" plywood of the bumper on the adjacent side.

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          • #6
            Re: Bumper dimensions question

            Sorry, but you'll have to redesign. One of the updates last week made it clear that the 8" of bumper has to be supported by and attached to the frame at each end of the bumper.
            Yes, but only a minor redesign. You can make the two end pieces 8" long, and mount them protruding into the opening. Then you'll have 8" of frame to which you can mount the 8" of bumper plywood. Yes, your opening (which I suppose you are using as a ball intake?) will get narrower. The roller, or whatever you were planning on putting in that opening, may need to be smaller, if it is extending all the way to the frame perimeter. This is very close to the frame design we are using.

            This also has the benefit of giving you more room for the team number, which you must display on at least one of the front bumpers (and it can't be broken up to put part of the number on one bumper and the remainder on the other).
            Cal
            Red Raider Robotics - FRC Team 578
            Fairport, NY, USA
            FIRST Team 578

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