This week I made more refinements to the 3D housing. After brainstorming with teammates, we decided to keep the front part of the housing solid while only sliding the back portion. This allows us to place the FSR statically in the front and have a sliding mechanism for the tip of the pen to push on the FSR. I redesigned the tip of the pen to be a separate print from the body so that we can snap in the tip to the front, and have it slide back and forth with a hook mechanism to have natural presses of the FSR. I also had to make the housing thicker because of quality control reasons with how thin the 3D printer in TechSpark.
My progress is on schedule, and next week I hope to have everything integrated in the housing.
As I’ve designed the project, I had to learn how to 3D CAD in Fusion360 to make the housing and make sure the housing adheres to design constraints. In addition, I had to learn how to interface with the OS HID reports to take in external Bluetooth data. I learned how to do these things through trial and error, and also online information.