Need Statement:

A cafeteria serves beverages in paper cups and they simply dispose these cups into the disposal box which holds lot of space.In order to minimize the space occupied by the disposal he wants semi automatic paper cup crushing machine.

3.1 Question and answers

       Table 1:Question and answer                                                                                                                          

Sl.no	Questions	Answer	Objective/Function/Constraint
1.	What is your budget?	Max-Rs4000	Constraint
2.	How many cups do you want to crush at once?	One cup	Constraint
3.	What is the time constraint?	3 Months	Constraint
4.	What should be the weight of the machine?	Approx 5kg	Constraint
5.	What should be the volume of the paper cup?	65ml-150ml	Constraint
6.	What should be the dimensions of the machine	Max-1ftX1ftX1ft	Constraint
7.	Where do you want to store the crushed cups?	Disposal box	Function
8.	Do you want the indication of the crushed cups?	Yes	Function
9.	Should the machine play any aesthetic music?	No	Function
10.	Why do you need this machine?	To minimize the size of the cups during transportation	Objective
11.	Do you want the machine to be portable?	Yes	Objective
12.	Should the machine be user friendly?	Yes	Objective
13.	Should machine crush the cups in flattened form or shredded form?	Flattened	Function
14.	Do you want the machine to notify when the work is done?	Yes	Function
15.	Where do you want to use the machine	Cafeteria	Objective
16.	Do you want the reading of the crushed cups?	Yes	Function
17.	In how many seconds the paper cup should the crush the cup	Less than 30 seconds	Constraint
18.	Should the machine be made up of standard parts?	Yes	Objective
19.	Should there be any safety measures taken?	Yes	Objective
20.	Should the crusher sense the cup?	Yes	Function

3.2 Basic Survey and Requirements

        Table 2:Observation from a literature survey

Sl.no	Observations from the survey	Requirements
1.	Weight of the machine	It should be easy to carry and portable
2.	No of operations	It should work for atleast 8-10 attempts
3.	Cost	The machine should be built in less amount
4.	No of paper cups to be crushed	1 paper cup to be crushed at once
5.	Materials to be used	Materials should of be less weight and easy to deal with.

3.3 Identifying Client's Objectives

Step 1:Prepare a list of design objectives Table 3:Objectives identified

Sl.no	Objectives
1.	The machine should be portable.
2.	The machine should be user friendly.
3.	The machine should be semi-automatic.
4.	Machine is required to minimize the size of paper cups during transportation.
5.	The machine will be used in cafeteria.
6.	Standard parts should be used in the machine.
7.	Machine should be safe.

Problem definition version 3.1:-

Design a semi automatic papercup crushing machine made up of standard parts for its use at a cafeteria in order to minimize the size of the cups during transportation.The machine should be user friendly, portable and safe.

3.4 Identify CONSTRAINTS

Step 1:Prepare a list of design constraints Table 4:Identified constraints

Sl.no	Constraints
1.	Budget is 4000.
2.	Time constraint to complete the machine is 3 months.
3.	Weight of the machine is approximately 5kg.
4.	The volume of the cup is 65ml-150ml.
5.	The dimension of the machine should be less than 1ft X 1ft X 1ft.
6.	The machine should crush the cups in less than 30 seconds.
7.	One cup should be crushed at once.

Problem definition version 3.2:-l

Design a semi automatic papercup crushing machine made up of standard parts for its use at a cafeteria in order to minimize the size of the cups during transportation.The machine should be user friendly, portable and safe.The dimensions of the machine should be 1ftX1ftX1ft maximum and the weight of the machine should be approximately to 5 kgs.The machine should crush the paper cups of 65ml to 150ml volume.The machine should crush the cups in less than 30 seconds and one cup should be crushed at once.The total cost of making the papercup crushing machine should be within Rs 4000 and the model should be ready within 3 months.

3.5 Identify FUNCTIONS

Step 1:Prepare a list of design functions Table 5:Identified functions

Sl.no	Functions
1.	Reading of the cups crushed.
2.	Sense the cup.
3.	Notify when crushing is completed.
4.	Crushing of cups in flattened form.
5.	Disposal of cups.

Problem definition version 3.3:-

Design a semi automatic papercup crushing machine made up of standard parts for its use at a cafeteria in order to minimize the size of the cups during transportation.The machine should be user friendly, portable and safe.The dimensions of the machine should be 1ftX1ftX1ft maximum and the weight of the machine should approximately 5 kgs.The machine should crush the paper cups of 65ml to 150ml volume.The machine should crush the cups in less than 30 seconds and one cup should be crushed at once.The total cost of making the papercup crushing machine should be within Rs 4000 and the model should be ready within 3 months.The cups should be crushed in flattened form and stored in a disposal box.The crusher should sense the cups when it is near to it.It should notify when the work is completed as well as read the number of crushed cups.