5. CONCEPT EVALUATION AND PRODUCT ARCHITECTURE - S-Division-2023-2024-Odd/Repo-13 GitHub Wiki

PUGH CHART

Sl No	Objectives	score	Concept-1 (screen printing)	Concept-2 (Circular printer)	Concept-3 (Stamp machine)	Concept-4 (3D printer)	Concept-5 (Cylindrical printer)
1.	Printing speed	9	++	++	++	DATUM	++
2.	Ease to use	5	++	+	++	DATUM	+
3.	Safety	4	0	0	0	DATUM	0
4.	Cost	7	0	0	+	DATUM	+
5.	Reliability	8	-	-	-	DATUM	-
6.	Maintenance	9	--	--	+	DATUM	--
7.	Printing accuracy	8	--	--	--	DATUM	--
	TOTAL		-14	-19	20	0	-12

Design idea no.	Objective	Score Given	Justification
1	printing speed	++	It takes very less time to print
	Ease to use	++	It is ease to use for everyone
	Safety	0	it is safe for use
	Cost	0	It costs less
	Reliability	-	It has less reliability
	Maintenance	--	It has very high maintenance
	printing accuracy	--	It has very less accuracy
2	Printing speed	++	it takes very less time to print
	Ease to use	+	it is ease to use for everyone
	Safety	0	It is safe for use
	Cost	0	It cost less
	Reliability	-	it has less reliability
	Maintenance	--	it has very high maintenance
	Printing accuracy	--	it has very less accuracy
3	Printing speed	++	it takes very less time to print
	Ease to use	++	it is very ease to use
	Safety	0	it is safe for use
	Cost	+	it cost less
	Reliability	-	it has less reliability
	Maintenance	+	it has less maintenance
	Printing accuracy	--	it has very less accuracy
4	Printing speed	0	reference
	Ease to use	0	reference
	Safety	0	reference
	Cost	0	reference
	Reliability	0	reference
	Maintenance	0	reference
	Printing accuracy	0	reference
5	Printing speed	++	it takes very less time to print
	Ease to use	+	it is ease to use
	Safety	0	it is safe for use
	Cost	+	it cost less
	Reliability	-	it has less reliability
	Maintenance	--	it has very high maintenance
	Printing accuracy	--	it has very less accuracy

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The Architecture of a stamping machine typically involves several key components:


1.	Input module:	This is where the user interacts with the machine, specifying the stamp design, size and many other parameters.
2.	Design Software/Controller:	It includes software to create or select the desired stamp design and control the printing process.
3.	Image processing Unit:	Responsible for processing the design, converting it into a format suitable for printing (Ex: vectroizing the image).
4.	Printing Mechanism:	This comprises the hardware responsible for physically applying the ink to the stamp .it might involve print head, ink cartilages, stamp material and the mechanism to transfer the design onto the stamp.
5.	Control and power supply:	This includes the control system that manage the process coordinating the user interface ,image processing and the printing mechanism. Its also where the power supply for the machine is regulated.

Screenshot (8)

The subsystems in a stamp printing machine involves :

Sl. NO	Interactions
1.	MATERIAL INTERACTIONS :	Stamp material like rubber, surface ,and ink or toner and substrate material like paper, cardboard .
2.	DATA INTERACTIONS:	User input and design selection, design software/controller and image ,image processing unit and printing , control system and coordination.
3.	SPATIAL INTERACTIONS :	Geometrical dimensions, degree of freedom , ink supply , input and output stamp, constraints that must be maintained between the subsystems.
4.	ENERGY INTERACTION:	The printing mechanisms requires energy to operate various components such as print heads, ink dispensing systems.

Subsystems identified were: