February 26th - March 5th, 2018

This week, the PowerPuff Girls reached the mid-semester point. The girls presented the design and some testing results to the class and adviser. Throughout the week, the girls continued to work on testing and obtaining a better magnet placement for nanoparticle collection. Also, Esther worked to slow down the movement of the motors in the recirculation device. Previously, the movement of the device was abrupt. Using 'for' loops and minor pauses in the program, Esther was able generate a slower, more fluid motion for the pulley system. One motor stopped working during testing, so a new motor was ordered and should be arriving shortly. Jennifer worked on updating the design. Instead f the metal pieces used for the recirculation device, the girls are wanting to 3D print a part for a more stable and aesthetically pleasing design. A few screenshots of the 3D parts can be seen below in Figures 1 and 2. The girls are discussing which part they believe would work the best before sending it in to be printed. For now, the current, metal design will be used for testing, but the part should be printed this week.

Figure 1: A screenshot of the first pulley holder design.

Figure 2: A screenshot of the second pulley holder design.