10/12-10/19

This week we met with Bengt to discuss the design progress we currently are making. Propulsion has made a final decision on the motor that they will be using. The placement of their components are making a huge impact on where we can place the linkages for the steering. We have a final concept for how the steering will be switched with one single actuator located at the top. It will use a driver diad for the top steering arm, and a geared pulley system for the lower control arm. We are also discussing using a solenoid as a failsafe for steering and we have a final concept for the failsafe that prevents the cabin from falling through the rails. This would also lower the stall torque requirements for the driving stepper motor. This weekend we are planning on laser cutting out a plywood prototype to see how it fit on the rails. We will also be preparing our presentation for next weekend, and working on the CAD for the linkages.