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A catapult "gets rid of" the red thing. A robot "brings the red thing back to the catapult." Cooperatively, these devices busily work together at conflicting goals to ...
This requires 3d printing, electronic work and wood work. Print all of the 3d parts (two of the wheels). Wheels and the "thing" should be printed at 100% ...
Print the parts (witch wobble base should be scaled to 85% of original size). Acquire four nickels (or similar size coins for weight).
Insert the coins in the base and the plastic plug above the coins.
Insert the rod in the "rings" and glue or melt together.
Glue or melt the rod assembly to the base. This "thing" will always land rod side up.
Cut off the ends of a servo horn and attach the horn to a servo gear motor (normal servo motor with internal end stops and electronics removed).
Attach the 3d printed servo horn.
Push this into the leadscrew and secure with a 2-56 screw and nut.
Place the servo bracket against this assembly, making sure that the motor shaft can turn freely. Melt the servo bracket to the assembly using a soldering iron (or ...
Attach the gripper unit to the extend plate.
Attach a servo motor to the gripper.
Attach the gripper assembly to the actuator assembly.
Glue the servo lid to the servo motor bracket.
Add the ping holder to the bottom of the servo bracket, then fasten the ping detector to the bracket.
Attach the motor brackets and motors to the body. Use the vacuum belts on the wheels as tires, then push the wheels onto the motor shaft. Attach the ...
Add the caster base and wheel to the rear of the body. Add the camera bracket.
Add the camera bracket, Pixy camera and an Arduino. Install the sketch in the Arduino and attach the Pixy camera to the Arduino.In this step, I'm adding vision ...
Add the battery holder bracket and the Arduino holder platform. Add the battery holder and the switch.
Add wires to the Ping transducer (I used wire wrap wire) and bring the wiring to the appropriate Arduino.
Most of my connections were made using jumper wires and a breadboard.
A "line follow" bracket was printed. To this I mounted two infrared sensors and wires--this assembly is mounted on the bottom of the robot.
The catapult parts are printed and assembled using bolts and nuts.
A spring is attached to the high torque servo motor and the catapult arm. I used 22 gauge wire wrapped a few times to secure the spring to ...
The end stop and ir sensor are added to the catapult assembly.
An ir assembly is added to the robot.
Install the various sketches into the appropriate Arduino.
When the "thing" arrives on the catapult, the ir sensor detects it--then, after a time delay, the spring servo puts tension on the arm, The release servo is ...
The robot (after a delay to allow the "thing" to land and quit wobbling) commences a search using the Pixy camera. If it sees the "thing," it will ...
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