Pumpkin Chunkin-Cherry Edition

The most efficient and monetarily feasible launching mechanism

  1. Concept
  2. Solution
  3. Result
  • Concept

    Best Design Mechanism

    Best Design Mechanism

    The National Punkin’ Chunkin’ competition that takes place in Delaware every year, while a fun event for people of all ages, is a very competitive event for the participants. Many engineers from around the country gather together to design mechanisms that throw pumpkins incredibly far. Emulating this idea, Rowan University holds an accuracy version of the competition at its campus. A few students at Temple University decided to try their hand at designing their own, to see if through calculations and simulations they could build a mechanism that could participate in Rowan’s Competition.

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  • Solution

    The Vertical Drop

    The Vertical Drop

    Upon deciding to participate in the human powered trebuchet class, the group decided to go with a much more unused model of trebuchet, the vertical drop. Rather than the throwing arm swinging on one axis, the vertical drop has the arm run on a track with bearings, being forced through a throwing motion as the weight falls. Ultimately we chose this design because the track would guide the throwing arm to throw much straighter than a regular trebuchet, giving us an advantage in the competition.

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  • Result

    Spot-on Calculations

    Spot-on Calculations

    On the very first throw, with no practice shots at Rowan’s Campus, the mechanism was able to hit the target head on. This proved that the dynamic calculations that were used to design the trebuchet were spot on.

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