03 Problem Definition - Q-div-Engg-Exploration-2026-27-Odd/Repo-8 GitHub Wiki
Need Statement
There is a need to develop a low-cost, safe, and efficient automated fruit-cutting machine that reduces manual effort, saves time, and ensures uniform cutting using sensors and a conveyor belt mechanism.
3.1 Question and answer
| Sl.No | Questions | Answer | Objective/Function/Constraint |
|---|---|---|---|
| 1 | Should the machine be automatic or manual? | The machine should perform cutting automatically after the fruit is placed. | Objective |
| 2 | Should the machine be portable or fixed? | The machine should be compact and portable. | Objective |
| 3 | What should be the maximum weight of the machine? | Less than 5 kg. | Constraint |
| 4 | What should be the approximate dimensions? | Within 45 × 30 × 40 cm. | Constraint |
| 5 | How fast should the machine cut fruits? | Target of at least 2 fruits per minute. | Constraint |
| 6 | What types of fruits should it cut? | Selected fruits such as apples and bananas. | Constraint |
| 7 | How should fruits move inside the machine? | A motor-driven conveyor belt should transport the fruits. | Function |
| 8 | How should the machine detect fruits? | A sensor should detect the fruit at the cutting position. | Function |
| 9 | How should fruits be held during cutting? | A fruit holder should prevent movement during cutting. | Function |
| 10 | How should the cutting mechanism operate? | A motor-driven blade should move downward and return after cutting. | Function |
| 11 | What should happen after cutting? | The conveyor should transfer the cut fruit into a collection container. | Function |
| 12 | What material should be used for construction? | Mainly 3D-printed parts with a suitable cutting blade. | Constraint |
| 13 | Should the cutting process be visible? | Yes, the cutting operation should be visible through a protective enclosure. | Objective |
| 14 | Should the machine be safe to operate? | Yes, it should prevent accidental contact with the blade. | Objective |
| 15 | What should be the approximate budget? | Within Rs. 5,000, subject to component selection. | Constraint |
| 16 | Should the machine be easy to operate? | Yes, it should require minimal human intervention. | Objective |
| 17 | How should the machine be controlled? | An Arduino should coordinate the motors, sensor, and cutting mechanism. | Function |
| 18 | Should the machine be easy to clean? | Yes, food-contact components should be removable and washable. | Objective |
3.2 Basic Survey and Requirements
Table 2: Observations from a Literature Survey
| Sl.No | Observation from Surveys | Requirements |
|---|---|---|
| 1 | Weight of Machine | The machine should be lightweight, compact, and portable, weighing less than 5 kg. |
| 2 | Cutting Speed & Efficiency | The machine should cut at least 2 fruits per minute with minimum delay and without jamming. |
| 3 | Cost | The machine should be developed using affordable components and 3D-printed parts to minimize manufacturing costs. |
| 4 | Safety & Enclosure | The cutting mechanism should have a transparent protective enclosure and an emergency stop system. |
| 5 | Materials to be Used | The frame should be made mainly from 3D-printed components, while the cutting blade and food-contact parts should use suitable food-safe materials. |
| 6 | Cutting Uniformity | The machine should produce neat and consistent fruit pieces without excessive crushing or damage. |
| 7 | Automation & Control | Sensors and an Arduino microcontroller should coordinate fruit detection, conveyor movement, and automatic cutting. |
| 8 | Ease of Operation & Maintenance | The machine should be user-friendly, easy to clean, and simple to maintain, with minimal manual involvement. |
3.3 Identifying Client's Objectives
1.3 Objectives
| Sl.No | Objectives |
|---|---|
| 01 | Machine should be automatic with minimal human involvement. |
| 02 | Machine should be compact, lightweight, and portable. |
| 03 | Machine should maintain hygiene and provide uniform fruit cutting. |
| 04 | Machine should be safe, user-friendly, and easy to operate. |
Problem definition version 1.1 :-
To design and develop a compact, lightweight, portable, and fully automated fruit-cutting machine that reduces manual effort, saves time, and ensures uniform cutting of fruits. Traditional fruit-cutting methods require continuous human involvement and may result in uneven cutting, hygiene issues, and safety risks.
The proposed machine uses a conveyor belt to transport fruits, sensors to detect their position, and a motor-driven cutting mechanism to cut them automatically. After cutting, the fruit pieces are transferred into a collection container with minimal human intervention.
The machine should be developed using affordable components and 3D-printed parts, making it economical and easy to manufacture. The design should focus on maintaining hygiene, ensuring user safety, providing consistent cutting results, and being simple to operate and maintain.
3.4 Identify constraints
| Sl.No | Constraints |
|---|---|
| 01 | The total weight of the machine should not exceed 5 kg. |
| 02 | The dimensions of the machine should be approximately 45 cm × 30 cm × 40 cm. |
| 03 | The machine should be capable of cutting at least 2 fruits per minute. |
| 04 | The prototype should be designed to cut selected fruits such as apples and bananas. |
| 05 | The machine should be manufactured mainly using 3D-printed components and affordable materials. |
| 06 | The cutting mechanism must be enclosed with a protective cover to prevent accidental contact with the blade. |
| 07 | The machine should operate using a low-voltage power supply suitable for the motors and electronic components. |
| 08 | Food-contact components must be made from suitable food-safe materials and should be easy to clean. |
Problem definition version 1.2 :-
To design and develop a compact, lightweight, portable, and automated fruit-cutting machine that reduces manual effort, saves time, and ensures uniform and hygienic cutting of fruits. Traditional fruit-cutting methods require continuous human involvement, which may lead to inconsistent cutting, reduced efficiency, and safety concerns.
The proposed machine uses a conveyor belt to transport fruits, sensors to detect their position, and a motor-driven cutting mechanism to perform the cutting operation automatically. After cutting, the fruit pieces are transferred into a collection container with minimal human intervention.
The prototype should weigh less than 5 kg, have approximate dimensions of 45 cm × 30 cm × 40 cm, and aim to cut at least 2 fruits per minute. It should be designed to handle selected fruits such as apples and bananas using affordable, mainly 3D-printed components.
The machine should operate on a low-voltage power supply and include a protective enclosure around the cutting mechanism. Food-contact components should be made from suitable food-safe materials to maintain hygiene. The overall design should focus on safety, ease of operation, portability, cutting consistency, and low manufacturing cost, making it suitable for a small-scale engineering prototype.
3.5 Establish Functions
| Sl.No | Functions |
|---|---|
| 01 | Transport fruits from the input section to the cutting area using a conveyor belt. |
| 02 | Detect the presence and position of fruits using an IR sensor. |
| 03 | Automatically stop the conveyor belt when the fruit reaches the cutting position. |
| 04 | Hold the fruit securely in position to prevent movement during cutting. |
| 05 | Activate the motor-driven cutting mechanism to cut the fruit into pieces. |
| 06 | Retract the cutting blade to its original position after completing the cutting operation. |
| 07 | Restart the conveyor belt and transfer the cut fruit pieces into a collection container. |
| 08 | Coordinate the sensors, conveyor motor, and cutting mechanism using an Arduino microcontroller for repeated automatic operation. |
Problem definition :-
To design and develop a compact, lightweight, portable, and automated fruit-cutting machine that reduces manual effort, saves time, and ensures uniform and hygienic cutting of fruits. Traditional fruit-cutting methods require continuous human involvement, which may result in inconsistent cutting, reduced efficiency, and safety concerns.
The proposed machine uses a motor-driven conveyor belt to transport fruits from the input section to the cutting area. An IR sensor detects the presence and position of the fruit and sends a signal to the Arduino microcontroller, which automatically stops the conveyor belt. A suitable fruit-holding mechanism keeps the fruit stable while a motor-driven cutting blade moves downward to perform the cutting operation.
After cutting, the blade automatically returns to its original position, and the conveyor belt restarts to transfer the cut fruit pieces into a collection container. The Arduino coordinates the sensors, motors, and cutting mechanism to enable repeated automatic operation with minimal human intervention.
The prototype should weigh less than 5 kg, have approximate dimensions of 45 cm × 30 cm × 40 cm, and aim to cut at least 2 fruits per minute. It should be capable of handling selected fruits such as apples and bananas and should be manufactured mainly using affordable, 3D-printed components.
The machine should operate using a low-voltage power supply and include a protective enclosure around the cutting mechanism to ensure user safety. Food-contact components should be made from suitable food-safe materials and designed for easy cleaning. The overall system should be economical, easy to operate and maintain, and capable of demonstrating efficient and consistent fruit cutting through basic automation.