IMMR Photo Gallery - Motors

Shuttle Motor

This SEM is an overview of a motor. The two heatuators which are approximately vertical in the SEM are used to pull the pawl back. The heatuator that is approximately horizontal can be used to pull the pawl away from the motor wheel, disengaging the gear teeth. Toegether, these heauators are capable of turning the motor wheel.

Shuttle Motor SEM
Shuttle Motor SEM

Shuttle Motor

A close up of the motor wheel.

Pawl Motor

In this motor design, the pawl is a simple tooth that can be pulled back by heatuators just visible in the top right of the SEM. The staples are there for reinforcement during fabrication, and need to be removed for the motor to work. With the staples gone, the long rod connecting the pawl can flex outward and slip around gears.

Not visible is another heatuator to the left, which has a connection to lock the motor wheel in place. Thus, the motor wheel can be held in place, forcing the pawl to slip around the gear teeth.

Pawl Motor SEM
DAC Motor SEM

DAC Motor

This is a third motor design. This design takes significantly more area to implement, but should have no gear slippage. This can be important for several applications.

Unfortunately, the effects of topography were not properly accounted for. This wheel cannot turn because the connections are folded over the gear teeth.

Pawl-Ratchet Motor

This motor is also based on a pawl on a flexible extension. The small rod along the top of the left-most wheel acts as a ratchet. It prevents the motor wheel from turning counter clockwise, but bends and moves out of the way to allow clockwise rotation.

Pawl-Ratchet Motor SEM

 
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