4.VIRTUAL IMPLEMENTATION - H-Division-2020-2021-Even/Repo-05 GitHub Wiki
VIRTUAL IMPLEMENTATION
A. INDIVIDUAL PARTS OF THE MODEL
BASE
SERVO MOTOR
LINK 1
LINK 2
ARDUINO
Screw
LCD
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SUB ASSEMBLY
ASSEMBLED MODEL OF THE SPIDER BOT
3D MODEL
TOP VIEW
BOTTOM VIEW
SIDE VIEW
B.CIRCUITS
CIRCUIT FOR OBSTACLE DETECTION
CIRCUIT FOR MOVEMENT OF LEGS OF THE BOT
DUE TO LACK OF PINS IN ARDUINO TWO CIRCUITS ARE MADE
C.FLOW CHART
FOR MOVEMENT
FOR OBSTACLE DETECTION
INTEGRATED
D.BILL OF MATERIALS
BILL OF MATERIALS FOR OBSTACLE DETECTION
| SL.NO | PART NAME | MODEL SPECIFICATION | QUANTITY |
|---|---|---|---|
| 1. | LCD DISPLAY | 16*2 character display 5V,1mA | 1 |
| 2. | IR proximity sensor | 5V,5mA | 1 |
| 3. | Arduino | 200mA,12V | 1 |
| 4. | Jumper wires |
BILL OF MATERIALS FOR MOVEMENT OF BOT
| SL.NO | PART NAME | MODEL SPECIFICATION | QUANTITY |
|---|---|---|---|
| 1. | Servo motor | 3V,650mA | 12 |
| 2. | Arduino | 200mA,12V | 1 |
| 3. | IR sensor | 5V,5mA | 1 |
| 4. | Remote | IR remote | 1 |
| 5. | Jumper Wires |
BILL OF MATERIALS
| SL.NO | PART NAME | MATERIAL USED TO MAKE THE PART | DEMENSION SPECIFICATION | MODEL SPECIFICATION | QUANTITY | FABRICATION (optional) |
|---|---|---|---|---|---|---|
| 1 | base | bio-degradable smart materials/plastic | length=140mm ; width=120mm ; height =10mm | 1 | needed | |
| 2 | link 1 | bio-degradable smart materials/plastic | length=20mm ; width=9.5 mm ; height=9.57mm | 6 | needed | |
| 3 | link 2 | bio-degradable smart materials /plastic | length=60mm ; width=3mm ; height = 56mm | 6 | needed | |
| 4 | arduino | PCB | LENGTH=101.52mm ;width=53.3 | arduino mega | 1 | |
| 5 | servo motor | plastic | length =22.5 mm ; width=22.6mm ; height =11.6mm; | TOWER PRO SG-90,3V,650mA | 12 | not needed |
| 6 | plastic horn | plastic | length =19.4mm ; width= 5.55mm ; height=4mm | needed | ||
| 7 | sensor | plastic | IR sensor 5V,5mA | 1 | not needed | |
| 8 | Remote | plastic | 3.4″ × 1.6″ × 0.3″ | 1 | ||
| 8 | LCD display | plastic | 80.0 x 36.0 mm | 16*2 character display 5V,1mA | 1 | |
| 9 | IR sensor | plastic | 5V | 1 |
E. MOTOR SIZING AND BATTERY SIZING
The weight of the Leg Part is (m) = density * volume
Volume= l * b * h = 60mm * 9.5mm * 9.57mm = 5.4549cm^3
Density of the acrylic sheet is 1.185 g/cm^3
Mass = 1.185 * 5.4549 = 6.4641 g
Force = mass * acceleration due to gravity Force = 0.0065 * 9.8 = 0.0633 N
Torque = Force * Radius = 0.0633 * 0.0957 = 0.0061 Nm = 0.0618 kg-cm
Total Torque = Torque * Factor of safety = 0.0618 * 1.5 = 0.0927 kg-cm
THE MOTOR TOWER PRO SG-90 IS SELECTED
POWER
| SR.NO | COMPONENT | SPECIFICATION | QUANTITY | TOTAL REQUIREMENT |
|---|---|---|---|---|
| 1 | ARDUINO MEGA | 200mA,12V | 1 | 200mA |
| 2 | SERVO MOTOR | 3V,650mA | 12 | 7800mA |
| 3 | IR PROXIMITY SENSOR | 5V,5mA | 1 | 5mA |
| 4 | IR SENSOR | 5V,5mA | 1 | 5mA |
| 5 | LCD SCREEN | 5V,1mA | 1 | 1mA |
| Voltage Rating | Current Rating | Current rating with FOS |
|---|---|---|
| 5 | 211mA | 211mA |
| 3v | 650mA | 7800mA |
F.3D MODEL FILES
DISASSEMBLY
https://github.com/H-Division-2020-2021-Even/Repo-05/blob/main/disassembly%2011111111.zip
MOVEMENT
https://github.com/H-Division-2020-2021-Even/Repo-05/blob/main/movement%201111111.zip