6.Virtual implementation - O-Division-2022-2023-Even/Repo-06 GitHub Wiki
6.1 2D sketch of all parts
Subsystem 01: HANDLING OF THREAD
PART-A
PART-B
Subsystem 02:HANDLING OF REEL
6.2 3D MODELLING SUBSYSTEM 01: HANDLING OF THREAD
PART-A
- Side walls
Specifications: Material: Acrylic sheet(3mm), length=20cm, width=10cm
- Scrolling rod
Specifications: Material: Steel, diameter:0.8cm, length:14cm.
- Slider
Specifications: Material: Outer cover(Acrylic), inner surface(steel), Diameter: 2cm.
- Steel slider
Specifications: Material: Acrylic sheet, length: 14cm.
ASSEMBLY 01(b)
SUBSYSTEM 02: HANDLING OF REEL
- Winding reel
Specifications: inner rod : Steel bar, radius 0.7cm, length of 15cm outer thread winding reel: radius 0.8cm, Nylon rod, length 10cm outer reel edges: thickness of 0.2cm, diameter 1.2cm.
- Side glass
Specifications: Object made up of Acrylic sheet (2mm) making length 8cm, height 15cm, shaft hole diameter of 0.65cm, nut hole 0.3cm
- Side glass 2
Specifications: Object made up of Acrylic sheet (2mm) making length 8cm, height 15cm, shaft hole diameter of 0.65cm, nut hole 0.3cm, DC motor hole 0.8cm
- Pulley
Specifications: diameter 10cm, width of 0.3cm
- DC motor
ASSEMBLY 02
FINAL MODEL
#TOP VIEW
#SIDE VIEW
6.3 Circuit diagram
Subsystem 01:HANDLING OF THREAD
Subsystem 02: HANDLING OF REEL
Subsystem 03: INDICATION
Circuit Diagram
6.4 Flow chart
Subsystem 01: HANDLING OF THREAD
Subsystem 02: HANDLING OF REEL
Subsystem 03: INDICATION
FLOW CHART
6.5 BILL OF MATERIALS
MOTOR SIZING
L=10cm; B=1cm; H=5cm;
VOLUME 1=L * B * H = 1015=50cm^3
pulley
V2=Pi R^2H=Pi3^1.25.3=14.72cm^3
Total volume=V1+V2=64.72cm^3
Mass=Density*Volume
=1.18*64.72
Mass =76.36g=0.076kg
Force=Mass*force due to gravity
=0.076*9.8
F =0.7448N Torque=Force * Radius
= 0.7448*0.10
T =0.07N-m Maximum torque=0.07*0.158
=0.011N-m * 100 / 9.81 kg-cm
=1.127kg-cm
THEREFORE THE RPM OF MOTOR IS 120 RPM
Part 2 stepper motor for slidiing
V1=L=15cm;B=1cm;H=2cm;
V1=20cm^3 V2=Pir^2h
=Pi*2^2*1
=12.5cm^3
Total volume=V1+V2=20+12.5=32.5cm^3
Mass=Density*Volume
=1.18*32.5
M =38.5g=0.038kg
Force=Mass*force due to gravity
=0.038*9.8
F =0.36N Torque=Force * Radius
= 0.36*0.2
T =0.072N-m Maximum torque=1.5*0.072
= 0.108N-m * 100 / 9.81 kg-cm
= 1.5kg-cm
Battery sizing
DC and stepper motor are used = 2 Load current used = 250mA Fos= 1.2 Required adapter is =22501.2 = 600mA @ 12V =2A
Voltage rating =12V.
Current rating = 250mA. After applying Fos as 1.2
Voltage rating = 12.
Current rating =600mA.
THEREFORE FOR OUR COURSE PROJECT WE ARE USING 12V,2A ADAPTER.