This is the case design for my Science and Engineering fair project. We constructed biomimetic firefly robots to be worn on the user's head. This case has slots for a nylon strap to be threaded through, much like a bike helmet. It features a main piece and lid to allow the user to place the robot inside and access it when needed. At the moment its primary method of closing is with a rubber band - see the groove on the middle top and bottom to guide the rubber band. However, I also made a cut out for a screw and nut to hold the lid more securely. There are also guiding bump outs on the main piece as well as a wide peg to make sure the lid fits securely and consistently. Finally, there is a slot for an antenna to be placed to prevent too much movement, which causes radio interference. This design is meant to be printed in clear PLA to allow for light diffusion from LEDs inside to provide a bright visual.
Check out the project video on YouTube! https://youtu.be/bjJq9KFIf_g
The Iterative Process!
Designing this case was quite a journey. I tried numerous methods of connecting the lid and body pieces, strategies for light diffusion, sizes, orientations to fit the robot inside, spacings for the antenna slot, and fit as a hat. Starting with cardboard, I initially intended to have an open sort of window at the top to allow for light to pass through. Unfortunately, this proved both fragile and ineffective. Eventually I tried clear filament sort of on a whim, and immediately realized its potential. From there I went through several iterations optimizing different facets of the design.
I designed these models entirely in solidworks, which I had a student license of through my high school robotics team.