6.1 3D MODELING

6.2 CIRCUIT DIAGRAM

6.3 FLOW CHART

6.4 BILLS OF MATERIALS (BOM)

Sl No.	Part name	Material used	Description	Quantity required
1.	External body	Foam board	2ft * 2ft ,Thickness-mm	1
2.	Links	Acrylic sheet	120mm x 100mm,Thickness-5mm	1
3.	For connecting parts:-
	L clamps	-	0.5inches	16
	L clamps	-	1 inches	4
	Nuts and Bolts	-	3mm x 20mm
	Nuts and Bolts	-	5mm x 25mm
4.	Stepper motor	-	-	2
5.	Microcontroller	Arduino ATMEGA2560	-	1
6.	Sensor	IR Sensor	-	1
7.	LED Bulbs	-	Red colour	1
8.	Breadboard	Plastic	-	1
9.	Jumper wires	-	-	14
10.	Resistor	-	1000 ohms	1

6.5 MECHANISMS AND RESOURCE

MOTOR SIZING

1.VOLUME OF MECHANISM

A.First part: *L=20cm *B=1.5 *H=0.05cm

VOLUME 1=L * B * H=201.50.05=1.5cm^3

B.Second part: *L=18cm *B=1.5cm *H=0.05cm

VOLUME 2=L * B * H=181.50.05=1.35cm^3 C.Third part:

*L=25cm *B=1.5cm *H=0.05cm

VOLUME 3=L * B * H=251.50.05=1.875cm^3

D.Volume of 5mm nut = 0.39269cm^3*3=1.17807cm^3

TOTAL VOLUME=VOLUME 1+ VOLUME 2 + VOLUME 3 + Volume of nut =5.90307cm^3

1. MASS

DENSITY OF ACRYLIC SHEET =1.18g/cm^3

MASS = DENSITY * VOLUME

 = 1.18 * 5.90307

 = 6.96562 g 

 = 0.00696562 kg

2. FORCE

Force = mass * force due to gravity

  = 0.00696562 * 9.8

Force = 0.068263 N

3. TORQUE

Radious = 0.18 m

Torque = Force * Radious

  = 0.068263 * 0.18

Torque = 0.01228 Nm

NOW

Maximum torque=1.5 * 0.01228 Nm

             =0.01843 Nm

             = 0.01843 * 100 / 9.81 kg-cm

             = 0.1878 kg - cm

THEREFORE THE RPM OF MOTOR IS 1000

BATTERY SIZING:

Number of DC motor used = 1 Load current used = 250mA Fos= 1.2 Required adapter is =250*1.2 = 300mA @ 12V =1A

1. Voltage rating =12. 2.Current rating = 250. After applying Fos as 1.2 1.Voltage rating = 12. 2.Current rating =300.

THEREFORE FOR OUR COURSE PROJECT WE ARE USING 12V,1A ADAPTER.

6.6 3D MODEL AND ASSEMBLY