The completed Hyper Line-Tracer robot
All the Movit kits include a comprehensive instruction manual which should be followed closely during the construction process to ensure a successful conclusion!

The Hyper Line-Tracer in kit form as removed from the box.
All the parts are clearly laid out in relevent groups and detailed in the comprehensive instruction manual accompanying the kit. Individual parts should not be removed until required and care should be taken to correctly identify tapping screws, machine screws and so on to avoid confusion during assembly. All traces of joiners (sprue) should be removed from all the parts using a pair of small diagonal cutters or craft knife

The first step is to insert the motor wires carefully through the plastic pipes, blue and orange through one pipe and green and yellow through the second pipe. One wire should be inserted at a time, with the second wire passed through the pipe rather like sewing, through each section at a time. Although rather fiddly, this can be achieved quite easily if this method is followed. The motor wires can be distinguished from the sensor wires used later by their longer length.

The 2 pairs of battery holder wires must also be inserted through the remaining two pieces of plastic pipe, as can clearly be seen in the left hand photograph.

The round terminals of the motor wires must then be threaded through the pipe holder, with the battery holder pipes at the top and the motor wire pipes underneath, before being threaded through the central hole in the rear dome and through the opening of the PC board, as seen in the photograph on the right.

Any excess wires should be pulled through into the dome and the pipe holder inserted into its hole in the rear dome. The PC Board can then be fixed into the dome using 3 M2.6x6 tapping screws and all the wires connected correctly to the board. Reference should be made to the instruction manual for the correct wiring, and care should be taken inserting the terminals. Long nose pliers should be used for this stage

The next step is to attach the motors. The photograph on the right shows the blue side panels with motors already assembled, together with all the parts required for the gear and wheels. Each motor has to be inserted into its special plastic holder and the pinion gear pushed on to the end of the drive shaft. This requires a certain amount of force. The plastic cover should be placed over the motor allowing the terminals and the flat side of the motor top to locate in their holes. The terminals should be bent out a little to prevent damage and the cover gently tapped with a hammer until properly located. the pinion gear can then be pushed on until flush with the end of the shaft.

The wheels and side panels can now be assembled. The wheels consist of an inner section, an outer section and a tyre which should be made up before attaching the gears. The large flat spur gear with pinion should be attached first, followed by the smaller flat spur gear with pinion, applying a little grease to the bosses. Finally an M3x50 screw is screwed through the flat spur gear with boss, passed through a washer and spacer and through the hole in the side panel from the inside. A further washer and spacer is placed around the screw and the wheel held in place with a lock nut. this stage should be repeated for the second blue side panel.

The photographs show the left side panel fully assembled, clearly showing the gear and wheel arrangement.

The two side panels can now be secured to the central body panel and the rear dome/PC Board unit. The side panels are attached with M3x10 screws and nuts held captive in special slots within the body panels, two on each side. Careful reference should be made to the instruction manual to ensure that the body panel is the correct way round, otherwise the gears will foul on the panel!

The rear dome is attached to the side panels with M3x8 tapping screws. The motors are located to the rear of the robot, to avoid attaching the dome the wrong way around.

The right-hand photograph shows a close up of the PC Board located within the rear dome element, clearly showing the correct wiring as well as the LEDs relating to the photosensors in the sensor dome, which is the element to be considered next.

The next step is to install the sensor unit and dome, the element which gives the Hyper Line-Tracer its rather quirky "elephant-like" appearance.
The 4 sensor wires are placed in the slot of the sensor pipes, which are secured by 5 rubber stoppers located in grooves along the outside of the pipes, and the 2 larger dome stoppers.
The terminals at the end with the smaller hole in the pipe are then connected to the back of the sensor board following the wiring table in the instruction manual. 8mm lengths of black tubing must then be located over the phototransistors on the PC Board, which can then be located in the grooves of the sensor dome halves.
The sensor dome itself is similarly secured together with a large rubber stopper and fixed to the sensor pipe by the dome stopper already around the pipe.

The 2 battery holders are slung each side of the robot above the wheels with clips which lock into the blue plastic sides.

The sensor wires are now connected to the main PC Board (refer to the instruction manual for correct wiring sequence) and the front dome with the sensor unit clicked into place.. Hyper Line-Tracer is almost complete. The photograph on the right illustrates this stage, along with one of the battery packs and its cover.

The underside of Hyper Line-Tracer.

Once the batteries have been inserted and the covers clipped on, the motors can be wired up. Again, the instruction manual clearly shows the correct wiring. The Hyper Line-Tracer is now complete and ready for the off.