Hacked bumper mechanism

Having completed the new revisions of the circuit boards and sending them to be made by OSH Park, one of the few things that needs to be re-done/altered is the bumper required for operation as an Edgebot.

The hack, consisting of little more than a nail and rubber band

Previously it was unable to move backwards an forwards easily, this was because when you attached the bottom fastening plate, it sandwiched the slider between the bottom fastening plate and the top plate. I managed to fix this by applying a small amount of double sided tape to space the bottom fastening plate slightly and this provided the slider with enough room the slide relatively easily.

However, the micro lever switch does not have an adequate amount of force to push the slider forwards on its own. To fix this I made a slight hack to the design by adding a (blunted) nail through the back of the slider and attaching a small rubber band to the two screws either side of the newly added nail and the nail itself. This then provided a small amount of force to the slider to make sure that it is normally forwards, but with a small amount of pressure still allows it to move back and press the switch.

This hack will be implemented in the next version of the robot chassis.