EarPods x iPhone Case

Class Project (Group of 6)

Class: Introduction to Manufacturing and Tolerancing (E 27, UC Berkeley)

Timeline: October 2018 - December 2018

Skills used: SolidWorks, GD&T, engineering detail drawings

What

The E27 class project is to design a phone case paired with an additional peripheral feature. The purpose of this project is to get students familiar with the tolerancing, design, and manufacturing processes, as well as building good teamwork skills. My team created an iPhone case combined with an earphone case, where the earphones are snapped into place on a custom case attached behind the phone case with the wire wrapped around it. It includes several important fits to enable proper functionality. The final project report can be found here.

How

I was responsible for the engineering detail drawing, as shown on the right hand side below. Once the CAD models were in their final iteration and our final models were printed and were verified functioning, I started to take the CAD in SolidWorks and apply dimensions to every feature. This was quite a difficult task because our part had so many curves and fillets, which all had to be accounted for. To aid in the creation of my drawings, I color-coded different lines on my drawing to signify whether or not a certain feature had been dimensioned or not. This prevented redundant dimensions and allowed me to keep track of my work and keep working forward, allowing for mental clarity.