Arduino 3D Scanner

Overview

The Arduino 3D Scanner is a low-cost embedded system project developed to capture the 3D structure of an object using an infrared (IR) distance sensor and a motorized scanning mechanism.

The system uses an Arduino Nano as the main controller, a NEMA 17 stepper motor for precise rotational movement, and an IR distance sensor to collect surface measurements. The captured scanning data is stored on an SD card and transferred to a laptop for generating and visualizing the 3D model.

This project demonstrates the integration of embedded systems, sensor data acquisition, motor control, and mechanical design.

Project Status

Completed Prototype

The system was developed and tested as a mechatronics engineering project. The prototype successfully demonstrates object scanning, sensor-based distance measurement, data logging, and 3D model generation.

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Project Objectives

• Develop a low-cost 3D scanning system.
• Capture object surface measurements using an IR distance sensor.
• Control precise rotational movement using a stepper motor.
• Store collected scanning data using an SD card.
• Generate a digital 3D model from captured measurements.

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System Architecture

The Arduino-based 3D scanner consists of several hardware and software components working together.

The scanning process follows these stages:

1. The object is placed on the rotating platform.
2. The NEMA 17 stepper motor rotates the object with controlled movement.
3. The IR distance sensor captures distance measurements from different angles.
4. The Arduino Nano processes and collects the sensor data.
5. The scanning data is stored on an SD card.
6. The generated scan file is transferred to a laptop for 3D model processing.

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Data Flow

                 Object to Scan
                       |
                       ↓
              Rotating Platform
                       |
                       ↓
             NEMA 17 Stepper Motor
                       |
                       ↓
              Stepper Motor Driver
                       |
                       ↓
                 Arduino Nano
                       |
          -----------------------------
          |                           |
          ↓                           ↓
 IR Distance Sensor             SD Card Module
          |                           |
          ↓                           ↓
 Surface Distance Data          Store Scan Data
                                      |
                                      ↓
                              3D Scan File
                                      |
                                      ↓
                                   Laptop
                                      |
                                      ↓
                         3D Model Processing

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Hardware Components

Component	Purpose
Arduino Nano	Main controller for the scanning system
IR Distance Sensor	Measures object surface distance
NEMA 17 Stepper Motor	Provides accurate rotational movement
Stepper Motor Driver	Controls stepper motor operation
SD Card Module	Stores collected scanning data
Rotating Platform	Holds and rotates the object
Power Supply	Provides electrical power

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Software Technologies

• Arduino IDE
• Embedded C/C++
• Serial Communication
• Data Logging

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Working Principle

1. Object Placement

The object is placed on the scanning platform.

2. Motorized Rotation

The Arduino Nano controls the NEMA 17 stepper motor to rotate the object in controlled steps.

3. Distance Measurement

The IR distance sensor measures the distance between the sensor and the object's surface during rotation.

4. Data Collection

The Arduino collects measurement values from different positions.

5. Data Storage

The collected scan information is stored in an SD card.

6. 3D Model Generation

The stored scan file is transferred to a laptop and processed to generate a digital 3D model.

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My Contribution

• Designed and developed the Arduino-based 3D scanning prototype.
• Integrated the IR distance sensing system.
• Implemented stepper motor control for scanning movement.
• Worked on sensor data acquisition.
• Integrated SD card-based data storage.
• Tested the scanning mechanism and generated 3D scan output.

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Project Output

The developed system successfully captures object measurements from multiple angles and produces a digital scan file that can be transferred to a laptop for further 3D model processing.

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Challenges

• Improving distance measurement accuracy.
• Synchronizing sensor readings with stepper motor rotation.
• Managing scan data storage.
• Improving scanning resolution and stability.

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Future Improvements

• Improve scanning accuracy.
• Generate automatic point cloud data.
• Add computer vision-based scanning.
• Implement real-time 3D visualization.
• Improve mechanical design and calibration.

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Technologies Used

• Arduino Nano
• IR Distance Sensor
• NEMA 17 Stepper Motor
• Embedded C/C++
• SD Card Data Logging
• 3D Model Processing

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Author

Samthy Shuaib

Mechatronics Engineering Student

Interested in:

• Robotics
• Embedded Systems
• Automation
• IoT
• Intelligent Systems

GitHub:

https://github.com/Samthy2001