# VIRTUAL IMPLEMENTATION

6.1 3D Modeling

* Assembled

* Door Opening Unit

* Puzzle Solving Unit

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6.2 Flow Chart

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6.3 Circuit Diagrams

Puzzle Unit

Door Opening Unit

Integrated Circuit

6.4 Bill Of Materials

Casing

sl.no	Part Name	Material Used	Description	Quantity	Fabrication
1	Base	Foam sheet			cutting , drilling
2	Side	Foam sheet			cutting , drilling
3	top	Foam sheet			cutting , drilling
4	compartments	Foam sheet			cutting , drilling

Door opening

sl.no	Part Name	Material Used	Description	Quantity	Fabrication
1	Rack	Plastic	21 cm	1
2	Pinion	Plastic	4 cm	1	-
3	DC Motor	-	45 rpm	1	-
4	Supporting Wheels	-	3.5 cm	3	-

Puzzle unit

sl.no	Part Name	Material Used	Description	Quantity	Fabrication
1	Servo motor	-	SG90	2	-
2	IR sensor	-	To sense puzzle match	2	-
3	Disk		3cm x 5cm	2	cutting
4	Temple	Foam sheet	0.3 cm		cutting , drilling
5	Tree	Acrylic sheet	9cm x 3cm x 10cm	1	cutting , bending

Integrated

sl.no	Part Name	Material Used	Description	Quantity	Fabrication
1	Arduino Mega 2560	-	microcontroller	1	-
2	SG90 Servo Motor	-	To rotate disk	2	-
3	LED	-	-	2	-
4	Push Button	-	take user input	3	-
5	DC Motor	-	to open door	1	-
6	IR sensor	-	to sense puzzle match	2	-
7	Adapter	-	12V DC power supply	2	-
8	Bread board	-	make connections	1	-
9	2 way relay module	-	change the direction of DC motor	1	-
10	Jumper wire	-	connections	30	-
11	Disk	...	to display numbers	2	Cutting
12	Casing	Foam sheet			Cutting,drilling
13	Compartment	Foam sheet			Cutting,drilling
14	Temple	Foam sheet			Cutting,drilling
15	Tree	Acrylic sheet	9cm x 0.3cm x 10cm	1	Cutting,bending
16	L-Clamps	Aluminium			Drilling
17	Motor clamps	Steel		3	Drilling
18	Nut bolts	Steel			-
19	Rack	Plastic	21cm	1	Drilling
20	Pinon	Plastic	4cm	1	-
21	Supporting Wheels	-	3.5cm	3	-

DC motor selection

Total volume=667.2cm^3

Density of foam sheet=0.961gm-cm^3

Mass=density X volume =(0.961 X 667.2)+0.3 =0.941kg

Coefficient of friction=0.85

Force=mass X coefficient of friction

=0.85 X 0.941

=0.8N

Torque=force X r =0.8 X 2.2 =1.76kg/cm

Factor of safety=1.5

Total torque=1.76 X 1.5 =2.64kg/cm

THEREFORE 60 RPM DC MOTOR IS SUITABLE

DC MOTOR SELECTION

Total volume=300cm^3

Mass=Density X volume

=0.96 X 300 =288gm

Force=mass X coefficient of friction =288 X 0.4 115.2N

Torque=Force X r =115.2 X 2.5 =288gm/cm

Factor of safety=1.5

Total torque=288 X 1.5 =432gm/cm =0.432kg/cm

THEREFORE 45 RPM DC MOTOR IS SUITABLE

ADAPTOR SELECTION

Speed of the motor=45 rpm

torque=2.64 kg-cm

Power= 2 X pi X speed X torque/60

Power=2 X 3.14 X 45 X 2.64/60

Power=12V

Therefore Adaptor of 12V is suitable

6.6 3D Model

.ipt files Assembly.zip