# 6.VIRTUAL IMPLEMENTATION - P-Division-2022-2023-Odd/Repo09 GitHub Wiki

BASE

BOLT

PUSHING PLATE

NUT

SCISSORS

ROLLER

CONVEYOR

SUPPORTING GUIDE

UPPER PART

ASSEMBLY 1

ASSEMBLY 2

## 6.5 Mechanisms and resource specification

### Mechansisms

1. Rack and pinion mechanism
2. Scissor lift mechanism
3. Tilting mechanism
4. Conveyor Mechanism

### Pushing plate

L=10cm , B=1.5cm , H=1cm

V1=L * B * H= 15cm^3

V2=pi * r * r=0.196375cm^3

Total volume of pushing plate =V1-V2 = 14.8036 cm^3

d=0.5g/cm^3

M=7.4018g

### Supporting Guide

L=15cm ,B=2cm ,H=2cm

V1=60cm^2

Two supporting guides=> V2=2*60=120cm^3

Rectangular part : L=8cm ,B=0.5cm V2=4 cm^3

Circle:r=0.25cm V3=0.196375cm^3

Total volume of supporting guide = V1-V2-V3 = 115.80 cm^3

d=0.5g/cm^3

M=57.9g

### Roller

Small cylinder

r=0.25cm , h=1cm

V1= pi * r * r * h= 0.196375cm^3

Two small cylinders => V1=2*0.196375=0.3925 cm^3

Big cylinder

r=0.75 , h=3cm

V2=pi * r * r * h = 5.3 cm^3

Total volume of Roller = V1+V2 = 5.6925 cm^3

d=1.5g/cm^3

M=8.5368g

### Scissors

L=12cm, B= 1.5cm , W=0.5cm

Total 8 scissors

Volume = 8 * 12 * 1.5 * 0.5=72cm^3

d=1.18g/cm^3

M=84.96g

### Nut

a=3.6cm

Volume= a^3 * srqt(2)/3- 3.142 * 0.25 * 0.25

Volume =21.9282-0.196375cm^3

Volume=21.731825 cm^3

d=7.85 g/cm^3

M=170 g

### Lifting Table

Volume=Volume of side part *2 + Volume of back part+ Volume of down part

=2 * 15 * 10 * 0.42 + 10 * 10 * 0.42 + 15 *10 *0.42

=126+42+63 Total volume of Lifting table=231 cm^3

d=0.7g/cm^3

M=161.7g

r=0.25cm , h=6cm

V=pi * r * r * h =1.1775 cm^3

Volume=1.1775 cm^3

d=7.85 g/cm^3

M=9.243g

### Bolt

Volume= Volume of hexagon + volume of cylinder

=(3 * sqrt(3))/2 * a^2 * h +pi r * r h

=2.59 * 0.5 * 0.5 * 0.4+ 3.14 * 0.25 * 0.25 * 1

=0.2595+0.19625

Total volume of Bolt = 0.45575cm^3

d=7.85 g/cm^3

M=3.577g

TOTAL MASS=503.3186 g = 0.503 kg

Force=0.503 * 9.8

Force=4.9294 N

Torque=4.9294 * 7 =34.5058 N cm

Tmax= 34.5058 * Factor of safety

Tmax=51.7587 N cm = 5.28 kg cm

**This implies required motor is 30 rpm 12V Low Noise DC motor With Metal Gears-Grade A**

## CONVEYOR SIDE PLATE

L=6cm B=5cm W=0.2cm V=15 cm^3 d=1.18g/cm^3 M=17.7g

## CONVEYOR PLATE

L=19.5cm B=1.9cm W=0.4 cm V=14.82cm^3 d=1.18g/cm^3 M=37.17g

## TOTAL MASS=54.87g=0.05487kg

FORCE=0.05487*9.8=0.5377N Torque=3.7640

Tmax= 34.5058 * Factor of safety

**Tmax=36.8872 Ncm = 3.7614 kg cm

This implies required motor is 60 rpm 12V Low Noise DC motor With Metal Gears-Grade A