...
- 2D designs of the mechanism do not illustrate the many required planes of motion for the links. When we first started planning out the mechanism by looking at YouTube videos and MotionGen, we initially did not foresee the many challenges associated with transforming a 2D design into a 3D design. Some of these challenges include joint collisions, positioning of grounds, and play between the links. Moving forward, it is important to consider the multiple planes of motion involved in a 2D design and use low-cost, quick iterations to diagnose issues before proceeding with a complete prototype.
- 3D Prints have significant wear and tear throughout repeated use. In our case, replacing bearings in the 3D prints and repeated use led to weathering of the mounts, ultimately increasing play within the mechanism.
- Using tolerancing test cuts for laser-cut components saves time and cost. While cutting our links, we needed the press-fit holes to have tight tolerances. Repeatedly cutting the links until the press fit was appropriate was a waste of time and material. Instead, it is more efficient to cut out a "test piece," with many holes of incrementally different sizes. Use this to determine the appropriate dimension for press-fit components.
Future Work
...