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I need to get the detailed mechanical design properly underway to ensure I haven't forgotten to order some critical parts. This blog covers design of the wheels and motor mounts. This video animates some of the CAD models to show their detail: The steering and drive mechanism is pretty complex as the steering wheel is also the drive wheel. The drive motor mount has a steering post on it to allow the steering motor to control direction of the drive motor. This motor housing has a very compl ...
I finally have all four custom PCBs designed and on order so I can spend some time describing the system a bit better. The diagram below shows how all the electrical subsystems are connected in the GraffitiBot. Although this is a busy diagram with lots of subsystems, there are just as many sensors on the Sensor Tile itself which are not broken out on the diagram. There are 2 batteries - one will power the pumps and drive motors, the other one will power the rest of the electronics. The key ...