Proposed Path:
Click the figure below to see animation.
Mobility:
M = 3*(L-1) - 2*J1 -J2 where L = 5, J1 = 5, J2 = 0
M = 3*(5-1) - 2*5 - 0 = 2
Therefore we have 2 degrees of freedom
Position Analysis:
Add analysis explanation
Add position vs theta graph
Velocity Analysis:
Let's start off with our Vector Loop:
We performed a velocity analysis to determine what the velocity at point B is. From the vector loop above we solved for omega 3 and omega 4 values. From the newly calculated angular velocities around each point we then solved for the velocities of link 2,
Initial Physical Prototype:
Here is our first prototype of our mechanism. Although the gears are not grounded in the picture, we were able to create the proposed path from above. Laser-cut gears and links and used M3 nuts and bolts to bring together the prototype. We do plan to do multiple iterations in the coming weeks to test out different link lengths and find a ratio that gives us a larger surface area. A thought we have is to add a rack and allow the gears to move back and forth along it. This would increase the surface area and give us a greater challenge regarding our mechanical components.