Line Follower Sensor Bracket

thingiverse

I was engaged in a leisure activity when an idea struck me - creating a line-following robot. I had previously built a round robot, the Teachbot, which was featured in Gordon McComb's Arduino Robot Bonanza book. The book is an excellent resource for learning robotics and coding with Arduino. I already possessed IR emitters and photo-transistors but needed a way to mount them on the robot. This mounting bracket was specifically designed to fit onto the front bottom edges of the round robot. Although it holds four pairs of emitter/detectors, I successfully used only two center ones. Printer Settings Printer: Migbot i3 Rafts: No Supports: Yes Resolution: 0.2 Infill: 25% Notes It's not necessary to use supports when printing the top case, but I wanted the printed top to be the last part printed, so I added support underneath. Alternatively, I could have flipped the case top over and printed it upside down, but I didn't want that flat texture you get from the bed. In the pictures, the Line Follower Bracket is made of Black PLA, and the Line Follower Bracket cover is Red PLA. Design Process Bench Testing Before designing the case, I conducted some bench testing with my components. The case is designed to hold four sets of IR emitters and photo-transistors in the four rows, spaced 3/8 inches apart. The Emitters and Photo-transistors are all 5 mm holes. These items were simply friction fit into the lower part of the "line follower bracket." I used ribbon cables out the back to connect the mounting bracket to the top breadboard.