Problem Statement: Develop a mechanical device that lifts a camera up to at least eye level so that it can be used for pipe inspections inside of a nuclear power plant.

Decision  Matrix: Creating this decision matrix helped me to pick which module to pursue. I picked criteria that were technical, but not overly specific. The utility was an important aspect of my designs because I wanted what I ended up making to be both usable and necessary. Another important criterion was efficiency. Since my modules explored different ways to operate, the tether spool efficiency was a valid and important criteria to explore. 

Weights vary from 1-5 with 1 being the lowest and 5 being the best rating each aspect can achieve. 

 

For this decision matrix, I critically analyzed each component from assignment 5. Some logical criteria were cost, permission, producibility, and complexity. They were chosen so as to pick the most critical comment in my design. The higher the score the more complex each component is. 

 

The belt and pulley system was certainly the most complex of the 3 components. It had a very high cost, and complexity rating compared to the other components.

 

In the second place, the spool brought some fairly complex and high tolerance parts, however, it scored low on the cost phase as it did not involve advanced machining and could be easily 3d printed. 

Assumptions:

Some things were assumed within the drawing stage of this assignment. These include assuming that the reader of the drawings already has a good working knowledge of engineering symbols and destinations. I also assumed some future manufacturing techniques in the material choices and tolerences required. 

Engineering Drawings

Gantt Chart:

Download here

Lessons learned:

During this assignment, I learned the importance of using correct tolerances and how vital this is to the end production of the desing.

Time Management:

12-1-2020 2:00-5:00 pm brainstorming and initial decision matrix implementation

12-2-2020 2:00-5:00 pm drawing creation

12-5-2020 3:00-4:30 pm Website implementation

12-14-2020 7:30-8:00 pm feedback

Comments to Advisees:

Advise to Dylan Appleyard:

Overall things look very good. It appears you have a good understanding of drawings and all that they entail including tolerances and dimensions. One piece of advice on your drawings is the change the scale in order to fill the entire page. Another small detail would be to include your name on each drawing. You could also do an exploded view that would present each part assembled in detail which would be a nice touch. 

Advise to Hunter Joyner:

Overall, very nicely done! Just a couple of minor things I think could improve the overall look and feel of your assignment. The format of the drawings on your site could be adjusted so that it fills the entire screen. I found it hard to read your drawings without zooming in. Another thing that you need to add is a tolerance block. That was something Dr. Fagan told us we needed to have. Other than that great job!