Mechanical projects
Mechanisms, design and physical prototypes.
Automated Pick and Place Robotic Arm using Arduino
A 4-degree-of-freedom robotic arm that picks objects and places them at programmed positions. Four servo motors drive base ro...
Automatic Blackboard Cleaning Machine using Arduino
This project builds an automatic blackboard cleaning machine using an Arduino Uno that drives a motorised wiper carriage acro...
Automatic Bottle Capping Machine with Torque Control
This bench-scale machine carries bottles along a short conveyor, places a cap on each bottle, and tightens it to a set torque...
Automatic Braking System for Vehicles using Ultrasonic Sensors
This project builds an automatic braking system for vehicles using ultrasonic sensors on a demo vehicle model: an Arduino Uno...
Automatic Brick Laying Machine Model
This project builds a tabletop model of an automatic brick-laying machine: a conveyor feeds miniature bricks, a mortar hopper...
Automatic Car Parking Lift Demo Model
This project builds a working scale model of an automated parking lift: a platform that raises a model car to an upper deck,...
Automatic Cashew Nut Shelling Machine with Adjustable Blade Gap
This project builds an Automatic Cashew Nut Shelling Machine with Adjustable Blade Gap: a 0.5 HP single-phase motor drives a...
Automatic Chapati Making Machine Model
This project builds a tabletop machine that turns dough portions into flat chapatis without hand rolling: a hopper feeds doug...
Automatic Coil Winding Machine with Turn Counter and Tension Control
This project builds a motor-driven coil winding machine that winds enamelled copper wire onto transformer and inductor bobbin...
Mechanical guides
All guidesHow to Calculate Torque and Choose a Motor for Your Robot
A motor that stalls on a slope and a motor that drains the battery both come from the same mistake: picking by feel instead of calculating torque. This guide works through the four torque terms, a sizing workflow and three worked examples with real numbers.
Read guideG-Code Basics for CNC: The Commands Students Actually Use
G-code is the language every CNC machine reads, and about fifteen commands cover nearly everything a student program does. This guide explains the coordinate system, the essential codes, a complete worked pocket-milling program, canned cycles for drilling, and the five mistakes that scrap parts.
Read guideGear Types Explained: Spur, Helical, Bevel, Worm and Planetary Gears
Spur, helical, bevel, worm, and planetary gears all trade speed for torque, but they differ in shaft arrangement, noise, efficiency, and backlash. This guide explains how each type works, compares them in one table, and gives a selection workflow with worked choices for robots, conveyors, and lifting rigs.
Read guideHow to Read a Hydraulic Circuit Diagram: Symbols, Flow Paths and Worked Examples
A hydraulic circuit diagram is a standard-symbol map of how oil flows from tank to actuator and back. This guide decodes the symbols students meet most, gives a five-pass method for tracing any circuit, works through a press circuit in extend, retract and centre positions, and explains why retract force and speed differ from extend.
Read guideLathe Operations Explained: Turning, Facing, Drilling and Threading
A lathe is the clearest way to understand machining: the workpiece spins, a single-point tool moves against it, and material comes off as chips. This guide explains the machine's parts, every operation students actually perform — facing, turning, taper turning, drilling, parting, knurling and thread cutting — and the cutting-speed arithmetic that decides whether a cut works.
Read guideBest 10 Food-Processing Machines Students Actually Build
Clients keep asking for machines that process something their audience recognises: dough, vegetables, spices, cane, coconut and oilseed. This guide picks ten real published projects — chapati makers, dough kneaders, cutters, grinders, presses and a forming machine — each linked to its live project page with its real mechanism and design values.
Read guideFrequently Asked Questions
Do I get CAD files and drawings?
Yes — CAD models, 2D drawings and the bill of materials are standard deliverables for mechanical builds.
Is fabrication included?
Fabrication guidance and vendor-ready drawings are included. Physical fabrication can be quoted as an add-on depending on your city.
Are design calculations part of the report?
Yes. Load, torque, thermal or structural calculations relevant to the build are documented in the report.
Can the project include automation or electronics?
Yes — mechatronic builds with motor control (Arduino/PLC) are common. Mention it in your quotation request.
About Mechanical projects
Mechanical final-year projects are judged on whether the thing works as a physical system — motion, structure, and mechanism first, electronics second. Reviewers will look at your build, push it, and ask why you chose a particular linkage, material, or motor. A project with sound mechanical design and simple electronics will always outscore a weak mechanism dressed up with sensors. Get the mechanics right; everything else is support.
What Mechanical students usually build
Robotics and automation dominate, and for good reason: an Automated Pick and Place Robotic Arm using Arduino forces you to think about degrees of freedom, torque, gripper design, and repeatability — real mechanical problems. Mobile robots like the Line-Follower and Obstacle-Avoiding Robot teach chassis design, motor selection, and the trade-offs between speed and control. Assistive mechanisms are another strong family: a Voice-Controlled Smart Wheelchair is fundamentally a problem in drive systems, steering geometry, and safe load handling, with voice control as the interface layer. CNC and fabrication projects, such as the Mini CNC Plotter (Arduino), are excellent because they combine structural rigidity, motion control, and precision in one build — and precision problems are very visible to reviewers. Whatever you build, be ready to discuss materials, fasteners, tolerances, and why the mechanism is shaped the way it is. That discussion is the core of your viva.
Technologies and tools worth learning
CAD is foundational — model the mechanism before you cut anything, because redesigning in software is free and redesigning in metal is not. Learn the basics of stress and deflection reasoning for your key structural parts; you do not need full FEA for every bracket, but you should be able to justify why a member will not bend. For actuation, understand DC motors, stepper motors, and servos well enough to select by torque and speed rather than by what is cheapest online — an undersized motor is the most common mechanical failure in student robotics. Arduino-level control is usually sufficient for the electronics side; the intelligence of the project should live in the mechanism. Keep a build log with photos at every stage — it becomes invaluable when writing the report and when a reviewer asks how something was fabricated. How to Choose a Final-Year Project Topic can help if you are still weighing options against your workshop's capabilities.
Software vs hardware balance
Mechanical projects are hardware projects, full stop. Software appears as control logic — reading a sensor, driving a motor, sequencing an operation — and it should stay in that supporting role. Be cautious of projects where the "mechanical" part is a purchased chassis with all the engineering in the app; your department will grade the mechanism, and there has to be one. Fabrication quality matters enormously: clean cuts, proper alignment, secure fastening. A wobbly arm with great code still fails the demo, while a rigid, smooth mechanism with simple code passes and looks professional doing it. If your college workshop has limited machines, design around what is available — laser-cut acrylic and 3D-printed parts can produce excellent mechanisms when designed properly. Say what you fabricated versus what you sourced; honesty about that is expected and respected.
Choosing scope wisely
Mechanical builds consume time in fabrication and iteration — assume at least two full rebuild cycles of your key mechanism before it works properly, and schedule for that. Material and machining costs add up: finalize the design on paper or in CAD before spending, and keep the mechanism as simple as it can be while still demonstrating the idea. A team of three to four works well: design and CAD, fabrication and assembly, electronics and control, with everyone involved in testing. Start physical work early — unlike software, you cannot compress fabrication into the last two weeks. Test with real loads, not just no-load motion; a gripper that works empty and drops everything under weight will be found out in seconds. Document dimensions, materials, and test observations as you build — How to Write a Final-Year Project Report and What to Include in a Final-Year Project Presentation Deck will help you turn that record into a strong submission.
A note on how Projectech helps
Projectech builds these projects to order — mechanism, electronics, and documentation — with an explanation of the design and working so you can defend the mechanical decisions confidently. If your workshop has specific fabrication limits, the design can be planned around what you can actually build and maintain.