1. Machine Design Specification
Page 1/9. Problems 1,2/8.
This is a rework of previous calculations.
Machine Design Specs
2016
Here I talk about the background of why I want to create SteinBot. I begin by defining the functional requirements of the system. I then estimate the forces on the SteinBot to get preliminary stiffness calculations. By analyzing the structural loop I get an idea of the proportions I need for some structural systems. I then divelge into different strategies to accomplish the objectives and select my top strategy. I begin to budget errors for these strategies to aid me in further design.
I really enjoyed starting this design. If I broke it down into simple steps like defining forces and stiffness requirements the process seemed manageable. I began to see how each element would begin to take place and how I could select materials to get within my predefined error limits. The next steps should be fun.
The peer review helped me out a lot. My peers helped me to think more about the writing interface and how I would deal with pens and pencil in case ink ran out or the pencil broke. I think I will change the design to have a spring that creates a constant force on the pencil. The peer review also helped me to think about how I can apply the structural loop to different parts of my system.
I think I still need some help with the structural loop and error budgets. The loop still feels kind of arbitrary and I'm not sure if I should tie it down to something physical on my system. For the error budget, I guessed some factors based on my intuition. However, this is new to me and I have no idea what I'm doing so I hope I'm in the ballpark. It will be intreseting to see how accounting for these errors affects my design.
Note: I went back and redid some structural loop calculations to try and size my strcuture. These calculations are Page Ten and Page Eleven. From the analysis, it looks like a vertical structure has been ruled out. My baseline is now a horizontal open bridge with reduced bridge-to-paper distance.