RENDERS OF THE DESIGN MANUFACTURER ASSEMBLY DRAWINGS 6 5 3 1 2 4 7 ITEM NO. PART MATERIAL QTY. 1 HEXAGONAL SPACER BRASS 3 2 INNER SPROCKET GEAR ALUMINIUM 1 3 OUTTER SPROCKET GEAR ALUMINIUM 1 4 COUPLING ALUMINIUM 1 5 SOCKET HEAD CAP SCREW M2.5X0.45 10MM STAINLESS STEEL 6 6 SOCKET HEAD CAP SCREW M4X0.7 12MM STAINLESS STEEL 1 7 HEX SCOKET M2 3MM STAINLESS STEEL 1 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY DRIVE SPROCKET GEAR ASSEMBLY DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 2:1 12/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 4 3 2 1 5 EXPLODED ISOMETIC VIEW SCALE 1:2 EXPLODED FRONT VIEW SCALE 1 : 1 ITEM NO. PART MATERIAL QTY. 1 12V DC MOTOR VARIOUS 1 2 ROBOT CHASSIS ABS 1 3 SOCKET BUTTON HEAD CAP SCREW M3X0.5 5MM STAINLESS STEEL 2 4 DRIVE GEAR ASSEMBLY VARIOUS 1 5 HEX SOCKET GRUB SCREW M2X0.4 3MM STAINLESS STEEL 1 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY DRIVE GEARS TO MOTOR ASSEMBLY DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL VARIOUS 13/11/21 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 54 2 3 2 1 ISOMETRIC VIEW EXPLODED ISOMETIC VIEW ITEM NO. PART MATERIAL QTY. 1 SUSPENSION BRACKET CAST ALUMINIUM 1 2 625ZZ BEARING STAINLESS STEEL 2 3 SUSPENSION WHEEL ABS PLASTIC 1 4 M5 1MM WASHER STAINLESS STEEL 1 5 M5 NUT STAINLESS STEEL 1 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY SUSPENSION BRACKET TO WHEEL ASSEMBLY DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 1:1 12/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 65 2 4 5 3 1 EXPLODED ISOMETIC VIEW ITEM NO. PART MATERIAL QTY. 1 TORSION SPRING HARDENED STEEL 1 2 SUSPENSION BRACKET CAST ALUMINIUM 1 3 SUSPENSION SHAFT CAST ALUMINIUM 1 4 625ZZ BEARING STAINLESS STEEL 1 5 M5 1MM WASHER STAINLESS STEEL 2 6 M5 NUT STAINLESS STEEL 1 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY SUSPENSION SHAFT TO BRACKET ASSEMBLY DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 2:1 12/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. A2 1 EXPLODED ISOMETIC VIEW DETAIL A SCALE 2 : 1 3 4 3 4 3 5 6 4 3 4 PART NO. PART MATERIAL QTY. 1 ROBOT CHASSIS ABS 1 2 SUSPENSION ASSEMBLY VARIOUS 1 3 M2 WASHER STAINLESS STEEL 4 4 M2 NUT STAINLESS STEEL 4 5 M4 WASHER STAINLESS STEEL 1 6 M4 NUT STAINLESS STEEL 1 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY SUSPENSION ASSEMBLY TO CHASSIS DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 1:2 14/11/21 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 1 2 3 3 4 3 5 6 5 3 7 EXPLODED ISOMETRIC VIEW PART NO. PART MATERIAL QTY. 1 ROBOT CHASSIS ABS 1 2 BOLT M5 42MM STAINLESS STEEL 1 3 M5 WASHER STAINLESS STEEL 4 4 SEPARATOR ABS 1 5 625ZZ BEARING STAINLESS STEEL 2 6 BACK WHEEL ABS 1 7 M5 NUT STAINLESS STEEL 1 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY BACK WHEEL ASSEMBLY DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 1:2 14/11/21 DATE SOLIDWORKS Educational Product. For Instructional Use Only. CLIENT ASSEMBLY DRAWINGS 42 4 1 3 EXPLODED ISOMETRIC VIEWPART NO. PART MATERIAL QTY. 1 ROBOT CHASSIS ABS 1 2 M2X0.4 3MM STAINLESS STEEL 4 3 ARDUINO UNO VARIOUS 1 4 HC-SR04 SENSOR VARIOUS 2 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY ELECTRONICS ASSEMBLY DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 1:2 15/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. EXPLODED ISOMETRIC VIEW ? 2 1 PART NO. PART MATERIAL QTY. 1 ROBOT CHASSIS ABS 1 2 ROBOT LID ABS 1 3 HEX SOCKET M2 6MM STAINLES STEEL 2 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY LID TO CHASSIS ASSEMBLY DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 1:2 15/11/21 DATE SOLIDWORKS Educational Product. For Instructional Use Only. ENGINEERING DRAWINGS 5.50 18 16 5 34 36 40 .5 0 42 FRONT VIEW 1 1. 50 1 0. 75 9 .2 5 8. 50 7 .5 0 R0.75 R1 1 3 5.25 TOP VIEW ISOMETRIC VIEW TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4ABS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY BACK WHEEL DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 2:1 13/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 4 9 4 6 2 4 1 7 40 52 64 22 18 1 7 8 3.400 THRU 2 THRU ALL 4 THRU ALL 6 THRU ALL R10 R1 6 SIDE VIEW 200 194 41.06 88.05 93.12 5 2 4 5 1 26 1 20 1 14 8 2. 13 73 77 166 162 123 119 3 0 3 4 75.54 78.54 1 2 R3 8 TOP VIEW 52 3 0 5 6 21 R0.70 R8 FRONT VIEW TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4ABS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY ROBOT CHASSIS DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 1:2 15/11/21 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 28.50 20 0 .6 8 3. 32 4 4 .8 2 8 R2 8.50 8 THRU 2 .6 5 FRONT ISOMETRIC VIEW BACK ISOMETRIC VIEW 28.50 20 7 .1 9 3 .5 0 8 3.30 9 4 .8 2 R4 BACK VIEWFRONT VIEW TOP VIEW BOTTOM VIEW TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4ALUMINIUM SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY COUPLING DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 2:1 13/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 4 3 3 3.40 THRU 3 .8 7 R4 THRU 0.72 2 .0 3 R0.50 R1 R18.50 3.50 TOP VIEW ISOMETRIC VIEWSIDE VIEW TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4ALUMINIUM SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY INNER GEAR DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 2:1 13/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 4 3 3 2 x 4.50 THRU 3 x 2.90 THRU R18.50 R0.50 R1 3 .8 9 1.69 3 FRONT VIEW ISOMETRIC VIEWSIDE VIEW ROMAN TAKHOVSKIY ALUMINIUM TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4 SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY OUTER GEAR DIMENSION IN MILLIMETRES SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 2:1 13/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 3.320 3 5.50 0.25 3 .1 8 2 .7 5 TOP VIEW 1.59 1 6. 50 6.36 3.18 SIDE VIEW ISOMETRIC VIEW ROMAN TAKHOVSKIY TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4BRASS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY HEXAGONAL SPACER DIMENSION IN MILLIMETRES SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 5:1 13/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 3 FRONT VIEW 200 194 176 1 26 1 20 1 02 75 1 23 .5 0 1 23 .5 0 37 2.400 THRU TOP VIEW ISOMETRIC VIEW TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4ABS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY ROBOT LID DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 1:2 15/11/21 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 5 7 9 7 2 4.50 ISOMETRIC VIEW TOP VIEW FRONT VIEW ROMAN TAKHOVSKIY TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4VARIOUS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY SEPARATOR DIMENSION IN MILLIMETRES SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 5:1 13/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. ISOMETRIC VIEW 5 R8 R8 9 R2.50 5 THRU R12 18 FRONT VIEW 34.86 3 5 2 7 5 TOP VIEW 30 29 4 9. 57 8 9 M5x0.8 THREAD 5MM SIDE VIEW 1.6 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4ALUMINIUM SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY SUSPENSION BRACKET DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 1:1 15/11/21 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 28 15 17 25 2 4 5 1 5. 80 1 6. 20 4x M2X0.4 THREAD 2MM M5X0.8 THREAD 5MM M4X0.7 THREAD 3MM R4 R8 0.400 2 4 24 1.6 TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4ALUMINIUM SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY SUSPENSION SHAFT DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 2:1 15/11/21 DATE SOLIDWORKS Educational Product. For Instructional Use Only. 5.50 13 5.50 18 16 5 FRONT VIEW 2 3 R1 R0.75 1 7 1 3 32 24 ISOMETRIC VIEW TOP VIEW TITLE TOLERANCE UNLESS NOTED OTHERWISE DO NOT SCALE A4ABS SCHOOL OF MECHANICAL AND MANUFACTURING ENGINEERING - UNSW DRAWN BY BEARING WHEEL DIMENSION IN MILLIMETRES ROMAN TAKHOVSKIY SURFACE FINISH UNLESS NOTED OTHERWISE SCALEMATL 2:1 13/11/2021 DATE SOLIDWORKS Educational Product. For Instructional Use Only. | Samaa Ahmad Page | 1 R2R Electrical Components Breakdown Figure 1: Electrical components TinkerCAD simulation As shown in the figure above, there are three main electrical components of this robot: (1) power supply, (2) sensors, and (3) motors. 1. DC Power supply: This robotic circuit uses a power pack of eight AA batteries to supply power to the motors since the motors operate on 12V. 2. Sensors: There are two HC-SR04 ultrasonic sensors in this robotic circuit, one at the front and one at the back of the robot. These sensors, connected to the Arduino board, detect objects in the robot’s path of motion and return reading of their distances back to the operator by printing it on a serial monitor. Pin of the sensor(s) Connection Function VCC 5V pin of Arduino Uno Provides power supply for HC-SR04 Ultrasonic distance sensor Trig Digital output of Arduino Uno Triggers the ultrasonic sound pules. Echo Digital output of Arduino Uno Pin produces a pulse when the reflected signal is received. GND GND of Arduino board Connects the sensors to common ground of the circuit Table 1: Ultrasonic sensor connection to Arduino Uno pins | Samaa Ahmad Page | 2 3. Motors: The robot uses two 12V DC motors to support its movement. The DC motors are interfaced to an Arduino Uno through a motor driver. The motor driver is a controller that uses an H-Bridge to easily control the direction and speed of DC motors. The connections to the pins are shown in the table below. Pin of the motor driver Connection Function Power 1 5V of Arduino Uno Drives internal logic circuitry of the Arduino Uno. GND pins on both sides GND of Arduino Uno Form a common ground connection for the circuit Output 1 Terminal 1 of the first DC motor Provides input for the first motor through Arduino Output 2 Terminal 2 of the first DC motor Provides input for the first motor through Arduino Output 3 Terminal 1 of the second DC motor Provides input for the second motor through Arduino Output 4 Terminal 2 of the second DC motor Provides input for the second motor through Arduino Input 1 Digital output of Arduino Controls the spinning direction of first motor. Input 2 Digital output of Arduino Controls the spinning direction of first motor. Input 3 Digital output of Arduino Controls the spinning direction of second motor. Input 4 Digital output of Arduino Controls the spinning direction of second motor. Enable 1 & 2 5V of Arduino Uno Controls the starting, stopping and speed of first motor. Enable 3 & 4 5V of Arduino Uno Controls the starting, stopping and speed of second motor. Power 2 AA battery power pack Connects Arduino to external power supply required to drive motors. Table 2: Motor connection to Arduino Uno pins