Over this week I focused on developing the prototyping hardware, I spent time doing the CAD of a simple attachment to hold the dev boards to the racket. I iterated through some designs to get the right tolerance so that the holder could slide over the butt of the tennis racket without too much difficulty and not move around too much. I did the CAD in SolidWorks and did the 3D printing on my personal 3D printer. Having my own 3d printer was super helpful for the development of the part because I could rapidly iterate the design.
My progress is sort of on schedule, but I think I need to break up the tasks into smaller items on the gaant chart. For instance I have physical prototyping as a task that spans over multiple weeks, but I think I should break it up into smaller more specific tasks that I can accomplish part by part. Also last week I wrote that I wanted to be collecting some initial tennis swing data by now, but some unexpected travel plans got in the way of that. I should be able to completely catch up the first week back at school by finalizing the prototype hardware and then hooking up a small battery.
The next week will be big, I have some CAD ready to go and want to finish the physical prototype and start collecting data. We are planning to start collecting initial data during the first week back from break and use that to start training our model for stroke classification and other data metrics.
During the next week I also want to finalize bare component selection and place an order for a PCB.
