Then connect the On/Off switch to the battery port of the motor controller and connect the battery pack to the On/Off switch with the white plug. Next, connect the motor power cables to the motor 1 and motor 2 ports on the motor controller and then to the DC motors. First, connect the motor controller and the touch sensor to ports 1 and 2 on the NXT. Then connect a 7-hole beam to the outside of each of the angular beams, and connect the NXT to the top hole of the beam, so that it hangs comfortably on top of the robot.Īlso attach a touch sensor to the hard-point connector on the front of the robot using connection pegs and another 7-hole beam. Place the battery pack with the flattest side up on the robot base and secure it to the top plate by placing the posts over the pack and screwing them through the plate.Īttach two 5×3 LEGO angular beams to the hard-point connectors with connector pegs. This apparatus should fit snugly over the battery pack. Next, create this battery-securing apparatus by placing two screws through two hard-point connectors and one flat bracket and into two long stand-off posts. Mount the omni-wheel assembly onto the base of the robot by placing the L bracket on top of the plate and screwing it into the two center-most holes. Tighten the screw on the axle hub to keep the axle in place. Feed an axle through all of these components and through the two large holes on the joint bracket. Place the components between the two arms of the joint bracket on the tube assembly in the following order: bushing, spacer, wheels, spacer, bushing. Now take your complete tube assembly, the two omni-wheels, two bronze bushings, and two large axle spacers, as well as one axle. Make sure that the small, black, outer wheels on the omni-wheel are staggered, so that only one touches the ground at a time. Then attach the other omni-wheel to the other side of the hub, so the two wheels sandwich the hub. Connect them according to the picture, making sure to use only the stand-off post and a screw when connecting the L bracket with the hard-point connector to the pivot bracket.Īttach an axle hub to one omni-wheel with two screws through the small holes in the center of the wheel. Take another L-bracket, a long stand-off post, and the servo joint pivot bracket from the kit, along with the tube assembly and the L bracket you just created. With the other plug and clamp, Repeat this procedure on the opposite end of the tube, making sure that the new clamp lines up with the existing one along the tube.Īttach a hard-point connector to an L bracket as seen here with a small screw and nut.
Make sure that the plug stays at the end of the tube and doesn’t wander to the middle. Place one plug in one end of the tube and attach a clamp to the end. Take from your kit a short tube, two tube clamps, and two tube plugs. Secure them the outermost holes on the channels, making the motors as far apart as possible so that you will be able to attach the motor cables later. Take the two motors and attach them to the underside of the base, using the long motor mount screws. Now repeat this procedure with another motor, motor mount, motor shaft hub, and wheel, so that you have two wheels that are ready to be mounted to the base of your robot. Once you have the motor mount on the motor, attach the shaft hub by sliding it onto the axle and tightening the screw into the flat part of the axle.Īttach the wheel to the motor axle mount with two screws. This may take a bit of force as the motor mount is designed to fit snugly.
Slide the motor mount around the front of the motor until the leading edge of the motor mount is flush with the crack in the motor housing, as seen in the picture. Take a DC motor, a motor mount, a motor shaft hub and a wheel from your kit. Use the hex key to tighten fully.Īlso attach the servo controller to the base in the same way on the other side. Feed the screw down through the top and attach a nut on the bottom. Fasten the controller, plate, and channel together with a screw and nut. Take the DC Motor Controller from your kit and line it up with two of the four holes that line up on one side of your robot. There should be four small holes in the plate that line up with four small holes in each channel. Begin by taking the two channels and the plate from your kit, and position them so that the open sides of the channels are facing towards each other.