The group has now been to the machine shop twice. The first time we went to fix our center shaft. We drilled a more precise hole (3/4") in the bottom of the central shaft to be able to attach it to the motor. We were aided by the machine shop staff and they helped us get a hole directly in the center of the shaft to reduce the wobble when the motor spins.
The second visit to the machine shop consisted of trying to get blades made. We were not able to use the blades designed in ProEngineer, because it would take too much time and cost too much. With some on the spot thinking, we decided to use the curve we designed but make it out of a lighter cheaper, more readily available material. We were given a scrap sheet of aluminum which we cut into 6 pieces 11" x 4". We then bent the blades over a 4" diameter pipe to get the curvature that we required.
We are currently working towards designing and cutting out the disks that will hold the blades to the center shaft.
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