E&TC / ECE · Robotics and drone · Final year project
Mini Bench Saw Machine
A small bench saw for cutting wood and plastic. A motor shaft holds interchangeable blades, and a spring-loaded arm pulls the blade back when pressure is released for safety.
What is the Mini Bench Saw Machine project?
A small bench saw for cutting wood and plastic. A motor shaft holds interchangeable blades, and a spring-loaded arm pulls the blade back when pressure is released for safety.
Key facts
- Type
- Final year project · Intermediate
- Suitable for
- Diploma capstone and B.E / B.Tech final year
- Build time
- 4 to 6 weeks
- Estimated component cost
- ₹7,200 – ₹10,600
- Guidance from
- ₹9,999 (Hardware / IoT Final Year)
How the Mini Bench Saw Machine works
- 12 V power adapter / step-down transformer supplies the circuit; a regulator gives the controller and sensors a steady 5 V.
- The Arduino Uno R3 reads the inputs, runs the decision logic written in C/C++ and drives the outputs.
- The DC geared motor provides the driving motion.
Block diagram
Controller
Arduino Uno R3Outputs
DC geared motorComponents list and cost
Typical prices from Indian online stores and electronics markets (Lamington Road, Budhwar Peth, SP Road). Buy from one store where you can to save on shipping.
| Component | Qty | What it does | Approx. cost |
|---|---|---|---|
| Arduino Uno R3 | 1 | Reads the inputs, runs the decision logic written in C/C++ and drives the outputs. | ₹550 |
| DC geared motor | 1 | Provides the driving motion. | ₹250 |
| 12 V power adapter / step-down transformer | 1 | Supplies stable low-voltage power from the mains. | ₹250 |
| Cutting blade | 1 | Cuts the material. | ₹300 |
| Springs | 1 | Store energy and return parts to position. | ₹150 |
| Mild steel frame and fabrication | 2 | Forms the main structure that holds all parts. | ₹5,000 |
| Arm | 1 | Part from the design specification | ₹150* |
| Passive components, PCB and wiring kit | 1 | Enclosure, mounts and fasteners, resistors (assorted), capacitors (assorted), PCB / breadboard and cables, connectors and jumper wires. | ₹610 |
| Wiring, PCB, soldering and enclosure | 1 | Project overhead | ₹450 |
| Demo model base / mounting board | 1 | Project overhead | ₹500 |
| Testing spares and replacements | 1 | Project overhead | ₹300 |
| Estimated total | Varies with brand, quality and city | ₹7,200 – ₹10,600 |
Prices are estimates for budgeting; items marked * depend on the exact size or model chosen. We confirm the bill of materials when your design is frozen, and components are charged at actual cost with bills.
How much does this project cost?
| Option | What you get | Cost |
|---|---|---|
| Components only | You buy the parts and build it yourself | ₹7,200 – ₹10,600 |
| Hardware / IoT Final Year | Working model or guided build, Circuit diagram and bill of materials, Firmware / code with explanation | from ₹9,999 + components |
| Capstone Project (CPE) | Working project or model, Black book in MSBTE format, Step-by-step explanation | ₹9,999 + components |
| Diploma ITR | 100% working source code, Project report PDF, PPT | ₹1,999 + components |
No GST and no hidden charges. Use the cost calculator for a quote with your deadline and add-ons, or see all plans.
Download the project brief (PDF)
Summary, working, components and cost and viva questions on one branded PDF to show your guide or team. To get it developed, contact us on WhatsApp.
What you submit with this project
- Working model with circuit diagram and program code
- Project report or black book in your university's chapter order (block diagram, circuit, calculations, results)
- Presentation for the review and final viva
- Synopsis for topic approval, if your college asks for one
E&TC / ECE viva questions on this project
What is the aim of the Mini Bench Saw Machine project?
A small bench saw for cutting wood and plastic. A motor shaft holds interchangeable blades, and a spring-loaded arm pulls the blade back when pressure is released for safety.
Explain the working of your project in short.
12 V power adapter / step-down transformer supplies the circuit; a regulator gives the controller and sensors a steady 5 V. The Arduino Uno R3 reads the inputs, runs the decision logic written in C/C++ and drives the outputs. The DC geared motor provides the driving motion.
What microcontroller is on the Arduino Uno and what are its key specifications?
The Uno uses the ATmega328P: 8-bit, 16 MHz clock, 32 KB flash, 2 KB SRAM, 14 digital I/O pins (6 PWM) and 6 analog inputs with a 10-bit ADC.
Why is a geared motor used?
The gearbox reduces speed and multiplies torque, so a small DC motor can move a vehicle or mechanism smoothly. Torque increases roughly by the gear ratio.
How is 230 V AC converted to 5 V DC for the circuit?
A transformer steps down the voltage, a bridge rectifier converts AC to pulsating DC, a capacitor smooths it and a 7805 regulator gives a steady 5 V.
Which material is used for the cutting blade and why?
High-carbon or high-speed steel, because it keeps a sharp edge and resists wear and impact.
What is spring stiffness?
The force needed per unit deflection, k = F ÷ x (Hooke's law). A stiffer spring deflects less under the same load.
Explain the block diagram of your project.
The input section senses the real-world quantity, the Arduino Uno R3 processes it according to the program, and the output section displays the result and drives the actuators. The power supply section feeds every block.
Which communication protocols are used between the modules?
The sensors give digital or analog signals read directly by the controller's I/O and ADC pins, and outputs are driven through transistor or relay drivers.
What is the operating voltage of the circuit?
The controller and most sensors work at 5 V (ESP boards and some modules at 3.3 V). A 12 V adapter powers the board, and a regulator steps it down. Motors and relays get their own supply line so they do not reset the controller.
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Want to build Mini Bench Saw Machine?
Send your college, deadline and team size. We confirm the scope, cost and what you will submit.