Ding Dong Ditch Robot

The way to scam from your couch.

Get an 18 by 18 square of wood. Cut a 2-inch by 16-inch rectangles on the far right and left the side, this is where the wheels are going to go.

Attach a continuous servo to each side in the front on the inside of the hole. After, attach a motor in the right front center, facing towards the left side of the robot. Make a hole next to this motor.

Attach a metal grid on both sides of each hole on the back of the robot and on the outside side of the holes on the front, across from the motors. Check to make sure a hole in the grid is across from the motor so that you can attach the axle through the hole of a grid, and the motor.

Attach the axle through the hole in the grid, the wheel (which should be in the hole right across from the motor or in between the two grids), and either the other grid or the motor to support the wheels. Then, fix the axles in place.

Attach the Vex EDR to the center of the base.

Attach a carved pole of metal to a gear. Place this in a bolt. Glue the bolt onto a flat, small platform. Attach a smaller gear below the gear you used. Attach this smaller gear to the motor you attached in the right center front of the robot base. Make sure the two gears are aligned.

Make 24 "slots" for the robot arms. Each 'slot' is 1 foot long, with a hole in the middle on each end. Take two pieces, put them across so that they form an x with the center the two middle points. Use a bolt and nut to attach them so that they stay together but can still rotate.(you might have to put glue on the end of the bolt to ensure that it doesn't unscrew)

Take each of the xs and attach them by the corners to construct two arms. Each arm should have 6 xs and should be the same length and height

On a small piece wood, make a small, long oval hole, roughly 3 inches wide. Put two long girds on either side and insert 3 axels with gears in the middle. 2 of the axles with gears should be in the middle of the hole, supported by the axis, and 1 of the axles with gears in the back. Attach the one in the back to a servo motor.

Cut a small long, rectangular piece of wood that is skinnier than the hole you made and about 1 foot long. Put treads in a straight line and glue the top side of the wood. The treads should be just long enough to wrap around the piece of wood. Mount this on the supporting gears.

Put two supporting walls on each side of the middle grid. Put an axle with a gear in the middle so that the gear touches the top of the conveyor belt. Attach the axles and make the circuit with the motor on the battery. From there, take a string and loop the string through the supports and then tie it to the front of the battering ram, as shown in the picture. On the back, attach a wall so the battering ram doesn't fly off the platform.

Create two pieces of wood with small holes. Attach two arms with two small metal poles with the two pieces of wood in the middle, as seen in the picture. Attach the two pieces of wood to the battering ram. This would allow the arms to raise the battering rams.

Attach the Geared Arm to the newly assembled arm and battering ram.

Attach this by the geared arm to the base by the motor. It should look like this.

Connect the motors to the vex EDR to create the circuit.

Add an i-phone mount so you can mount to the front of the robot so that an i-phone can be mounted as a camera

Attach the Pizza Boxes around the base so that when the battering ram is as low as possible, it looks like either one or multiple pizza boxes. Use more if it doesn't fit, but you should need four. Cut a hole so the battering ram can come out and the arms can fully extend. Cut another small hole so that the iPhone camera can see.

Use a vex controller and put the iphone on facetime so that you can see and control the robot.

Here is a link to the designs:

https://docs.google.com/document/d/1NyaI8G_ZlshV8Hm08OIS_0JEOYyov1nQ9OccnFNXuB0/edit?usp=sharing