24262 Team Design Project 2012

Group 46

Wee Chuan Tor

Kaiyang Kevin Liew

How our mechanism works

· Structure built to bring servo close to the 1 lb weight.

· Mechanism uses lever arm to transform rotational work done by servo into upwards translational work to lift the weight.

· Use of a counterweight to achieve higher lift

1 lb

Theoretical predictions

Smaller fraction was used due to uncertainties in actual torque produced by servo, as well as imperfections such as resistive frictional torque.

Our actual height was 3 in, due to the counterweight hitting the ground before maximum lift was achieved.

Interesting and original features (Things we are most proud of)

· Very sturdy and stable structure

· Use of L- and U-beams, 60 degree angle trusses

· Double bolt design on base gives extra stability

· Supports calculated and placed to give optimal results

· Well planned and designed: each part was carefully calculated, measured, and cut out

· CAD modeling using Solidworks to give conceptual idea of design

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Our truss modeled in Solid Works!

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View from another angle…	Our motor with the level arm attached to weight

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Top view of the playing field!	Side profile of our final structure.