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Materials weights for robot

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  • Materials weights for robot

    What materials would be best for the ballast weight for our robot?

    Thanks,
    Team 4181

  • #2
    The battery. Spare DC Motors.

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    • #3
      Originally posted by 2010FTC2818 View Post
      The battery. Spare DC Motors.
      Be careful using spare motors. We used a spare DC motor as a counter-balance last year and were told by a judge in Atlanta that he would count *ANY* DC motor on the bot regardless of active use against the allotment of 8. Fortunately we were under 8 even with that motor. He would have made us take it off if it had been the 9th.

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      • #4
        Wheels are pretty heavy - you could use them, spare gears and other assorted metal parts, or a combination.
        SAY-WATT.ORG

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        • #5
          Originally posted by 2010FTC2818 View Post
          The battery. Spare DC Motors.
          According to Rule <R5>a4 - Battery packs are NOT allowed to be used as ballast. And your robot can have only 1 battery on it.

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          • #6
            What is the heaviest lego piece you can use?

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            • #7
              They actually make lego pieces with weights in them. Here's a picture on ebay. You could probably find them a lot cheaper though.
              SAY-WATT.ORG

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              • #8
                Screws and nuts make good ballasts.
                Qingyang Chen
                FTC Team 5485 - PRO, Horseheads, NY
                Sponsored by Corning Inc.
                Join our fan page: http://www.facebook.com/ftcpro

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                • #9
                  I think the Spare DC Motors and the gears would be better i can't say best or good enough..
                  FTC forums PDF Software

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                  • #10
                    Folded flat bar is a nice weight. Motors and gears make nice weights, as long as you stay within the component quantity rules. I wonder if you use a lead block as a resistor in a protoboard circuit...
                    Max Bareiss

                    FTC #248 Fatal Error (2009-2013)
                    FRC #3142 Aperture (2009-2012)
                    FRC #1302 Team Lionheart (2012-2013)
                    ZRHS #89 Team K├╝hlschrank (2011-2013)
                    ZRAC #40 Catcher in the Skye (2012)
                    ISR 12: Umptysquatch 6
                    Rowan University Baja SAE

                    And mentoring for life.
                    --
                    11 seasons of FIRST in 6 years, as a student. Many more as a mentor.

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