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After multiple prototypes, our team discussed how to create the angle change in the shaking motion. Initially, we thought of laying the linkage flat and adding something underneath to lift the entire plate up and down. Ultimately we decided to turn the linkage so that the shaker would sit horizontally above the ground and add a cam below the plate to help change the angle of the linear motion. We created a stand that would allow the linkage plate to stand upright and allow for space to hold the cam underneath the plate. We also designed a simple shaker holder that features a shelf to keep the shaker level.
Initial Design
Below is a Peaucellier-Lipkin linkage which can transform rotational motion into a perfectly linear motion and the CAD model with final dimensions.
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| Initial Design | Second Design |
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Second Design
Our second iteration of the mechanism has a crank or cam mechanism to rotate the entire linkage plate. A pivot point is needed on the edge of the linkage plate to rotate about. This is how we incorporated an angle change.
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