Flexbot design

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Design overview hardware

Each "leg" of the flexbot consists of 3 actuators.

• An angled DC motor to control the wheel.
• Two linear actuators to control the motion of the robot's body.

Each of these actuators is controlled by a μ-processor board (Teensy 3.2). The Teensy controls the actuators via a motor driver and receives feedback from the actuators encoder signals. Each leg is split up in two parts which are presented as the lower leg and the upper leg. The hardware design for robot's body is presented here.

Lower leg hardware design

The lower leg configuration currently includes:

• Angled DC motor to run the wheel - model IG42-CRGM
• SyRen 10 motor driver
• Teensy 3.2 μ-processor board
• Pololu 24V to 5V voltage regulator - model D24V22F5
• Firgelli L12-50-210-12-I linear actuator

The schematic for the lower leg is shown in Figure 1 and can be forked and edited using the free online e-CAD design tool Upverter. Link to the project on Upverter is given here.

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Figure 1: Schematic for the lower leg for the Flexbot.