Force Analysis

                               To determine the multiple forces needed to operate the 3
                             Cam-Locking Mechanism, a Spring Scale was attached to the
                             prototype.

           Results:
 

                                2 lbs of Force Needed to Open/Close the Lid
                                12 lbs of Force to Un-Lock the Lid
                                8 lbs of Force to Lock the Lid
                                5 lbs of Force to Rotate the Sleeve to Lock the Front Cam
                                        onto the Hub

                             These are desirable results because an average woman can
                             apply approximately 50 pounds of force, and a male 75 pounds
                             of force.  Therefore, the above force requirements encompass
                             the majority of potential operators and therefore can be
                             considered universally compatible.
 

                             To determine whether or not the prototype could hold the
                             required 3 PSI, New Pig was contacted for some support and
                             the team borrowed their testing fixture.  The Cams were
                             locked, and the prototype immersed in a tub of water.  The
                             fixture was set to 3 PSI using a bike pump and no bubbles
                             were seen coming from the seal.  Therefore, the design will
                             hold 3 PSI.

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            Force Analysis
            Cost of Fabrication
            Design Recommendations