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  • #16
    Capacitors

    Both of your guesses as very good, thats exactly what Im doing (well close enough).

    The voltage is the big problem in its current setup, the rules limit it to less than 10% of whats preferable (Im talking about numbers in excess of 400V here). But Ive aquired some very nice capacitors, and the first testings should begin soon.

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    • #17
      Capacitors

      Dont forget you have to tether the objects you are shooting.
      Even if you tether them, I wonder if a weapon like this will be admitted

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      • #18
        Capacitors

        I would imagine he would be thinking about building a ram where it is the piston which is fired - and the energy used to move the handle of an axe/hammer?

        Si

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        • #19
          Capacitors

          Youll see what Ive got in mind...

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          • #20
            Capacitors

            Been reading a bit on the rules. Surely it will cause some electromagnetic interference. (Not continuosly, but in the firing moment.) Would it comply with 12.1.4?

            Btw, has anyone tried launching projectiles with FP CO2? It feels like it would give more power for less weight....

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            • #21
              Capacitors

              has anyone tried launching projectiles with FP CO2
              I was asked to leave my hall of residence at Newcastle in 1987 after such an experiment!

              Excerpt from security log:
              Approx 00.40hrs caught Mr. Rafferty in the quadrangle with a CO2 extinguisher in which one can see he has a plastic tube attached to the nozzle. Mr Rafferty was experimenting with it by shooting plastic film canisters from the tube

              It went bloody well - particularly with the nozzle restriction removed and shot the film can several hundred feet in the air (based on time delay).

              I would not reccomend you try exactly this, or at least dont get caught, but I felt it was a worthwhile experiment!

              Si

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              • #22
                Capacitors

                a bit like my spud gun then.

                Mike.

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                • #23
                  Capacitors

                  And my aunty has seen it in action - check my profile

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                  • #24
                    Capacitors

                    This year I built a compressed air gun which fired a D cell battery clean through my garage door. It used a fairly novel shuttle valve - bit like a poppet valve where you release the pressure on one side of the valve and the air pressure itself opens the valve to achieve the max possible airflow from the reservoir to the barrel.

                    Decided it was a bit dangerous and filed it in my dangerous things pile ;-)

                    Bit like a spud gun!

                    Si

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                    • #25
                      Capacitors

                      Sorry for not speaking clearly.....
                      Of course I was interested in possible robotwars application of a CO2-launcher....

                      And, well, sorry for hijacking thread too....

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