Today in engineering, we worked on the summer project and the t-shirt cannon. On the summer project, we worked on the pneumatic systems, which are being taught and implemented at the same time. On the t-shirt cannon, we continued the wiring, mounted the non0contat sensor, and began a new plate to better secure our airtight seal. We also began looking through and researching the makings of PWM cables for the t-shirt cannon but were unable to do anything with them.