About MechSimulator

Our Mission

MechSimulator exists to close the lab-equipment gap in engineering education. A diploma student in a small polytechnic should be able to practise reading a vernier caliper, plot a Mohr’s circle, or trace a hydraulic circuit with the same hands-on intuition as a student at a well-funded university — just from a browser, on whatever device they have.

Every one of the 89 simulators on this site is written, drawn, coded, and reviewed in-house by a working mechanical engineering instructor. They are not embeds, not affiliate widgets, and not generated boilerplate. Each tool is built around a real lesson plan, tested with students in actual classrooms, and revised based on what learners get wrong.

The site is free, requires no signup, and works entirely client-side. No downloads, no paywalls, no third-party scripts beyond standard analytics. Open a tool, run the simulation, read the explanation, take the quiz.

Platform at a Glance

What Makes MechSimulator Different

• Four learning modes — every tool offers Simulate, Explore, Practice, and Quiz modes for progressive mastery
• No installation required — runs entirely in the browser on any device, including school Chromebooks and tablets
• Covers the full curriculum — from measuring instruments and mechanics to hydraulic circuits, CNC G-code, and electro-pneumatic control
• Built for engineering education — designed specifically for diploma, apprenticeship, and polytechnic-level engineering courses
• Works offline — as a static site, pages load instantly and work even on slow or restricted school networks
• Privacy-first — no accounts, no personal data collection, no third-party ads

Simulator Categories

• Measuring Instruments — vernier caliper, screw gauge, height gauge, bevel protractor, and more
• Mechanics & Motion — Newton's laws, projectile motion, friction, free fall, torque
• Mechanisms & Machines — four-bar linkage, slider-crank, cam-follower, gear trains, belt drives
• Strength of Materials — beam bending, Mohr's circle, stress-strain, column buckling, pressure vessels
• Thermal & Fluid Engineering — heat transfer, thermodynamics, refrigeration cycle, fluid flow
• Basic Electrical — Ohm's law, RC/RLC circuits, transformer, DC motor, star-delta starter
• Virtual Lab Testing — UTM, hardness testing, impact testing, fatigue, wind tunnel
• Workshop & Manufacturing — lathe, milling, drilling, CNC G-code, hydraulic and pneumatic circuits
• Engineering Calculators — power screw, gear strength, weld strength, bearing life, heat exchanger

About the Author

Naseel Ibnu Azeez is a mechanical engineering instructor with a Master of Technology in Machine Design and a Bachelor of Technology in Mechanical Engineering. He has spent years teaching diploma-level and apprenticeship-level engineering courses — the kind where students need a working intuition for tools and machines, not just textbook formulas.

Every simulator on MechSimulator is written, drawn, coded, and quality-checked personally. The physics and formulas come from standard textbooks used in engineering curricula worldwide: Shigley’s Mechanical Engineering Design, Hibbeler’s Mechanics of Materials, Cengel’s Heat & Mass Transfer, Norton’s Design of Machinery, and the BS / ISO measurement standards. Where a tool models a real instrument (vernier caliper, micrometer, dial gauge), the geometry and graduations match the physical instrument used in technical institutes.

If you spot a formula error, a misleading explanation, or a bug, please report it — corrections are made within 48 hours and credited where appropriate.

Editorial enquiries, corrections and partnership requests: contact@mechsimulator.com.

Editorial & Review Process

Every page on this site — simulator, calculator, and blog article — goes through the same four-step process before publication:

• Draft against a primary source. Each tool starts from a textbook formula or published standard. The reference is listed in the article body so readers can verify it.
• Code & numerical validation. The simulator is implemented in plain JavaScript and its outputs are cross-checked against worked examples from the same source — usually a textbook problem with a known answer — before the page goes live.
• Classroom testing. New tools are used in real lessons before they are linked from the landing page. Confusing UI, ambiguous labels, and unclear modes are fixed based on what students actually ask.
• Ongoing revisions. Tools are revisited when a reader reports an issue or when curriculum updates change the way a topic is taught. Each tool page shows when it was last reviewed.

Articles are written in plain, classroom-style English — no AI-generated filler, no scraped content, no spun text. Where outside references are used (e.g. a hardness-scale conversion table, an ISO tolerance grade), the standard is cited by number.

For Educators & Institutions

MechSimulator is used by instructors and students in technical education programmes around the world — vocational institutes, polytechnics, diploma programmes, and apprenticeship schemes. If you are a teacher, trainer, or institution looking to integrate these tools into your curriculum, you are welcome to share direct links with your students or embed them on internal learning portals. Every simulator has a built-in QR code for easy classroom sharing, and the entire site works offline once a page has loaded.

If you would like a specific tool added, a feature changed for your curriculum, or a private branded build for your institution, get in touch via the contact form.