Actuators

Dynamixel AX-12A Robot Actuator


Price: $44.90

ProsHas the ability to track its speed, temperature, shaft position, voltage and load. Operating angle:300 degrees.

ConsExpensive.

DC Motor w/ Gear Box and Absolute Encoder 
Requires l298 Dual H Bridge




  • Price: $29.95 + $5.00
  • Pros: Allows for continuous rotation(360). Bidirectional. High Torque.  Absolute position 
  • Cons: no internal feedback loop (Arduino will need to measure rotation position and supply motor voltage), requires high power controlled voltage source such as l298 H bridge.  This set-up times 24+ motors will not be optimized for power consumption, will be bulky and will produce a lot of heat.



Power HD Metal Gear Servo 56g/9.8kg/.14sec
  • Price: $10
  • Pros: designed for hexapods . One off the best in servo motor market 
  • Cons: tremor problems


 DC Motor
  • Price: $4.49 when ordering more than 10
  • Pros: Allows for continuous motion and rotation, Able to go forwards or backwards,
  • Cons: No gearbox, would need an encoder most likely

Continuous Rotation Servo

Continuous Rotation Servo from Parallax Inc. (#900-00008) 
  • Price: $14.00
  • Pros: Allows for continuous rotation(360). Bidirectional. High Torque 
  • Cons: Speed Control
Servo Bracket
  • Price:2 for $12
  • Pros: Allows us to secure the servos wherever we can fit them. 
  • Cons:Might not be necessary (we could tape/glue the servo onto the body). May need to drill into body for this to work.



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