PUGH CHART

Design Objectives	Weights	Design 1	Design 2	Design 3	Design 4
Accuracy	8	DATUM	++	+	+
SemiAutomatic	4	DATUM	++	-	++
Portability	6	DATUM	--	+	--
User Friendly	9	DATUM	+	+	-
Efficiency	7	DATUM	++	+	++
Cost	7	DATUM	-	+	-
score(+)	-	-	47	40	30
score(-)	-	-	23	16	28
Total	-	-	24	24	2

Justification of evaluation

IDEA 1-4:

Design No.	Objective	Score Allocated	Justification for the Score
1 .	Accuracy	DATUM	-----
	Semiautomatic	DATUM	-----
	Portability	DATUM	-----
	User friendly	DATUM	-----
	Efficiency	DATUM	-----
	Cost	DATUM	-----
2	Accuracy	+++	It is highly accurate because it is operated manually.
	Semiautomatic	++	It can be also operated automatically.
	Portability	--	It is non portable.
	User friendly	++	It can be easily operated.
	Efficiency	++	It works on batteries and is efficient enough.
	Cost	-	It can be built in minimal cost.
3	Accuracy	+	It can be accurate enough.
	Semiautomatic	-	No it is not semiautomatic.
	Portability	--	It is not portable.
	User friendly	++	Very easy to use.
	Efficiency	+	It can be used to pick light weight object.
	Cost	+	It does not require much capita.
4	Accuracy	+	It can be accurate enough.
	Semiautomatic	++	It can be made semiautomatic.
	Portability	--	It is non portable.
	User friendly	-	It uses three motors so controlling it is difficult.
	Efficiency	++	It is highly efficient.
	Cost	-	It is costlier.

Selected design

PRODUCT ARCHITECTURE

Materials used

*Johnson Dc Motor

*Foam board

*Acrylic sheet

*SG90 Servo motor

*Gripper

*Microcontroller

*Jumper wires

*Connecting wires

*Cardboard sheet

*Nemma17 stepper motor

*Nuts,bolts and screw

*Nylon rod

FUNCTION CLUSTERING:

SUB SYSTEM IDENTIFIED

SL .No	Subsystems
1	Pick
2	Place
3	Controlling

Interaction between subsystems

Pick	Place	Controlling
Spatial	yes	Yes
Data	yes	Yes
Material	---	Yes

Place	Controlling	Pick
Spatial	---	---
Data	---	yes
Material	yes	---

CONTROLLING	PICK	PLACE
Spatial Interaction	yes	---
Data	---	---
Material	---	yes