Mechanical Engineering Hub

Solve.
Simulate.
Build.

Online calculators, interactive simulations, reference tables and engineering tools — built by a mechanical engineer, for engineers.

Featured

Engineering Calculators

All tools →
🔩
Bolt Torque Calculator
Calculate tightening torque for bolts based on diameter, grade, friction coefficient and target clamping force.
FastenersDIN 13
📐
Beam Deflection Calculator
Simply supported and cantilever beam deflection under point load or distributed load. Moment of inertia from cross-section.
StructuralEuler-Bernoulli
⚙️
Gear Ratio Calculator
Calculate gear ratios, output RPM, torque multiplication and pitch circle diameter for spur gear pairs.
Power TrainAGMA
Interactive

Physics Simulations

All simulations →
Bridge Resonance
Visualise resonance failure in suspension bridges. Adjust frequency, damping and wind load to see when structures amplify oscillations catastrophically.
Open simulation →
Differential Equations
Interactive visualisation of infinitesimal calculus and differential equations — slopes, tangents, derivatives and integral accumulation in real time.
Open simulation →
Digital Products

Offline Apps & Prints

View shop →
🐝
HiveLog
Beekeeping hive tracker. Works offline, single HTML file. Unlimited hives, inspection records, CSV + JSON backup.
$19
One-time · No subscription
Get it →
🐄
LivestockLog
Farm animal tracker for small farms. Vaccinations, vet visits, weight chart, births. Offline, single file.
$19
One-time · No subscription
Get it →
§ Tools

Engineering Calculators

🔩
Bolt Torque Calculator
Tightening torque based on bolt diameter, grade, friction coefficient and target clamping force.
FastenersDIN 13
📐
Beam Deflection Calculator
Simply supported and cantilever beams under point or distributed load. Multiple cross-section types.
StructuralEuler-Bernoulli
⚙️
Gear Ratio Calculator
Output RPM, torque and pitch circle for spur gear pairs. Multi-stage reduction support.
Power TrainAGMA
🌡️
Pressure Vessel Calculator
Wall thickness for cylindrical pressure vessels per ASME BPVC. Internal and external pressure.
VesselsASME VIII
🔄
V-Belt Drive Calculator
Belt length, centre distance and drive ratio for V-belt drives. Speed and power rating.
Power Trans.ISO 22
🔥
Heat Transfer Calculator
Conduction through flat walls and cylinders. Thermal resistance, heat flux and temperature gradient.
ThermalFourier
§ Simulations

Interactive Physics

Bridge Resonance
Visualise resonance failure in suspension bridges. Adjust frequency, damping and wind load to see catastrophic amplification.
Open →
Differential Equations
Interactive infinitesimal calculus — slopes, tangents, derivatives and integral accumulation visualised in real time.
Open →
Foucault's Pendulum
Visualise Earth's rotation through pendulum precession. Adjust latitude and watch how rotation rate changes with location.
Open →
Coming Soon
Spring-Mass System
Damped and undamped oscillation, natural frequency, resonance — interactive mass-spring-damper simulation.
§ Reference

Engineering Tables

MaterialE (GPa)σ_y (MPa)σ_u (MPa)ρ (kg/m³)α (×10⁻⁶/°C)ν
Structural Steel S2352102353607850120.30
Steel S3552103555107850120.30
Stainless Steel 304193215505790017.20.29
Stainless Steel 316193170485800015.90.29
Aluminium 6061-T668.9276310270023.60.33
Aluminium 7075-T671.7503572281023.60.33
Grey Cast Iron GG-251002507200110.26
Copper C110117692208940170.34
Titanium Ti-6Al-4V113.888095044308.60.34
ABS Plastic2.040441050900.39
PLA (3D Print)3.550651240680.36
PEEK3.6911001320470.40
ThreadPitch (mm)Minor Ø (mm)Stress Area (mm²)8.8 Proof (kN)10.9 Proof (kN)12.9 Proof (kN)
M61.04.77320.112.917.921.5
M81.256.46636.623.432.739.2
M101.58.16058.037.151.862.2
M121.759.85384.353.975.390.4
M162.013.546157100140168
M202.516.933245157219263
M243.020.319353226315379
M303.525.706561359501602
Sectionh (mm)b (mm)Area (cm²)Ix (cm⁴)Wx (cm³)Mass (kg/m)
IPE 1001005510.317134.28.1
IPE 1601608220.186910915.8
IPE 20020010028.5194319422.4
IPE 24024012039.1389232430.7
IPE 30030015053.8835655742.2
HEA 20019020053.8369238942.3
HEB 20020020078.1569657061.3
RHS 100×60×41006011.619438.79.10
Materialk (W/m·K)cp (J/kg·K)ρ (kg/m³)α (m²/s ×10⁻⁶)Melting Pt. (°C)
Structural Steel50490785013.01425–1540
Stainless Steel 30416.350079004.11400–1455
Aluminium 6061167896270069.0582–652
Copper38538589401111085
Grey Cast Iron46500720012.81127–1204
Concrete (normal)1.788023000.84
Glass1.084025000.48700–900
Air (20°C)0.02610051.221.5
Water (20°C)0.6041829980.143
§ Articles

Engineering Knowledge

Vibration Analysis
FFT-Based Vibration Analysis for Rotating Machinery
How to use Fast Fourier Transform to diagnose bearing faults, unbalance and misalignment in industrial machinery — a practical guide with MATLAB examples.
Coming soon~12 min read
Power Transmission
How to Calculate V-Belt Drive Systems from Scratch
Step-by-step methodology for selecting belt cross-section, calculating drive ratio, centre distance, belt length and verifying power capacity per ISO 22.
Coming soon~10 min read
Structural
Beam Deflection: Theory, Formulas and Worked Examples
Euler-Bernoulli beam theory explained clearly. Deflection formulas for simply supported, cantilever and propped beams with step-by-step examples.
Coming soon~15 min read
Manufacturing
GD&T Basics: Tolerancing for the Practical Engineer
Geometric Dimensioning and Tolerancing fundamentals — datums, form tolerances, orientation and position. What you actually need to know on the shop floor.
Coming soon~14 min read
Materials
Choosing Between S235 and S355: When Does It Matter?
A practical comparison of the two most common structural steels — yield strength, weldability, cost difference and when to specify which grade.
Coming soon~8 min read
Thermodynamics
Heat Transfer Through Composite Walls: Worked Examples
Thermal resistance networks for flat and cylindrical walls. Calculating heat flux, surface temperatures and overall U-value for industrial insulation problems.
Coming soon~11 min read
§ Shop

Digital Products

🐝
HiveLog
Beekeeping hive tracker. Unlimited hives, inspection records (brood, varroa, stores, disease checks), smart health status, CSV + JSON backup. Single HTML file, works offline.
$19
One-time · No subscription
Get it →
🐄
LivestockLog
Farm animal tracker. Cattle, sheep, goat, horse and more. Vaccinations with reminders, vet visits, weight chart, birth records. Offline, single file.
$19
One-time · No subscription
Get it →
🔧
MaintenanceLog
Equipment maintenance tracker for workshops and farms. Service records, preventive schedules, parts inventory. Coming soon.
In development
§ About

6NGen Studio

6NGen is a one-person engineering studio based in Istanbul. The work sits at an unusual intersection: mechanical engineering knowledge, software development and agricultural experience — all brought together in tools that are actually useful in the field.

The studio makes two kinds of things: engineering calculators and reference tools for the technical community, and offline-first apps for farmers and beekeepers who need reliable software without subscriptions or internet dependency.

Every tool is built and tested by the same person who designs it. There are no product managers or user research departments — just an engineer who uses what he makes, and who cares whether it works correctly.

The name 6NGen comes from six degrees of freedom in mechanical systems — a nod to the kind of thinking that underpins all the work here: systematic, multi-axis, grounded in physical reality.

FounderÖmer Faruk Durna
EducationIstanbul Univ.
Mechanical Eng.
StackFlutter · Next.js
Supabase · Python
LocationIstanbul, TR
Side craftBeekeeping · Farming
Founded2024
Twitter @6NGen_Studio
🔩 Bolt Torque Calculator
📐 Beam Deflection Calculator
⚙️ Gear Ratio Calculator
🌡️ Pressure Vessel Calculator
🔄 V-Belt Drive Calculator
🔥 Heat Transfer Calculator