Design & Technology simulations
45 interactive Design & Technology simulations for ages 11–18, grouped by topic.
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Reading a detail drawing – views, sections and dimensions
Design & Technology · Engineering Drawing & Design
A rotational part (bushing, stepped shaft, spacer bush or V-belt pulley) is shown at the same time as a 3D solid and...
Ages 15–16
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3D
Exploded View and Assembly Drawing – Parts List, Item Numbers and Assembly Order
Design & Technology · Engineering Drawing & Design
Three small assemblies (a wheel with ball bearings on an axle, a bolted joint of two plates and a pulley keyed to a...
Ages 15–16
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2D + 3D
First-angle vs third-angle projection – view layout and symbol
Design & Technology · Engineering Drawing & Design
One machine part (stepped block with a hole, L-bracket with a sloped rib, U-block with offset holes, chamfered...
Ages 15–16
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Technical systems – input, processing, output and feedback
Design & Technology · Engineering Drawing & Design
A real-time block diagram of a familiar technical system (water heater, air conditioner, rice cooker, or float-valve...
Ages 15–16
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3D
Sectional views – movable cutting plane, full, half and local sections
Design & Technology · Engineering Drawing & Design
A 3D machine part (flanged bushing, flange with bolt holes, bracket with counterbored holes) is cut by a movable...
Ages 15–16
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2D + 3D
Orthographic projection – from a 3D object to three views
Design & Technology · Engineering Drawing & Design
An object (a box, a wedge, an L-shaped block, a cylinder, or a hexagonal prism) rotates by mouse or touch; three...
Ages 13–14
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3D
Developments of solids – sheet-metal patterns of prisms, cylinders and cones
Design & Technology · Engineering Drawing & Design
A sheet-metal blank folded into a prism, a cylinder, an obliquely cut cylinder, a cone or a frustum unfolds strip by...
Ages 15–16
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Five steps of engineering design – building a phone stand
Design & Technology · Engineering Drawing & Design
Walk through all five steps of the engineering design process for a simple product: defining the problem and...
Ages 13–14
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Truss bridge design – bar forces and first failure
Design & Technology · Engineering Drawing & Design
A four-panel steel truss bridge with a pin support at one end and a roller support at the other. Students choose the...
Ages 15–16
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2D + 3D
From three views to the object – read the drawing and build it
Design & Technology · Engineering Drawing & Design
The task gives the front, top and side views of an object made of unit cubes, arranged in first-angle projection...
Ages 15–16
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Stresses and stiffening of structures
Design & Technology · Engineering Drawing & Design
Load a rod, post, shelf, shaft or pin in tension, compression, bending, torsion or shear, made of steel, aluminium...
Ages 15–16
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Material selection chart – strength and stiffness against density
Design & Technology · Mechanical Engineering
An Ashby-style log–log chart places 24 materials (metals, polymers, timbers, GFRP and CFRP composites, ceramics and...
Ages 16–17
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Production line – takt time, bottleneck station and output
Design & Technology · Mechanical Engineering
The line has several stations in series, each with its own processing time; click Run to watch parts move along the...
Ages 16–17
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Four-stroke internal combustion engine – valves, ignition and the work diagram
Design & Technology · Mechanical Engineering
A cutaway view of one cylinder of a four-stroke engine: the piston, connecting rod, rotating crankshaft, and the...
Ages 16–17
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Machining basics: turning and milling – primary motion and feed motion
Design & Technology · Mechanical Engineering
Choose a lathe or a milling machine, then press Run to watch the primary motion (the workpiece spins on a lathe, the...
Ages 16–17
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Motion transmission – belt, chain and gear drives
Design & Technology · Mechanical Engineering
Two wheels are coupled by a belt, chain or meshing teeth: the driver wheel turns at a set speed, and the driven...
Ages 13–14
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Car drivetrain – clutch, gearbox, drive axle and tractive force
Design & Technology · Mechanical Engineering
Power runs from the engine through the clutch, gearbox and drive shaft to the drive axle and wheels: each stage...
Ages 16–17
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Tensile test of mechanical materials – stress–strain graph, yield and tensile strength
Design & Technology · Mechanical Engineering
A metal specimen is clamped in a tensile-testing machine: drag the slider (or click Auto pull) to increase the...
Ages 16–17
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Smart and modern materials – thermochromic, photochromic, shape-memory alloy, graphene, metal foam, titanium, carbon fibre
Design & Technology · Mechanical Engineering
A virtual lab: heat or cool a thermochromic pigment, a thermochromic liquid crystal and a nitinol wire, and shine UV...
Ages 16–17
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Materials and their working properties – test and choose a material
Design & Technology · Mechanical Engineering
Choose a material family (papers and boards, hardwoods, softwoods, manufactured boards, ferrous and non-ferrous...
Ages 13–14
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Electrical safety – shock current, earthing and RCD breakers
Design & Technology · Electrical Engineering & Safety
Four common household electrical accidents: touching a bare live wire, holding a metal-cased appliance with a...
Ages 13–14
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Household electrical appliances – energy consumption and tiered electricity bills
Design & Technology · Electrical Engineering & Safety
The house has nine familiar electrical appliances with realistic power ratings: a 9 W LED bulb, a 60 W fan, a 100 W...
Ages 11–12
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Staircase lighting circuit – schematic and installation diagrams
Design & Technology · Electrical Engineering & Safety
A staircase lighting circuit uses two two-way switches to control one lamp from two locations, with an optional...
Ages 14–15
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Household electrical circuit – fuse, switch, socket and overload
Design & Technology · Electrical Engineering & Safety
A diagram of a 220 V household circuit: supply → protective device (fuse or circuit breaker) → parallel branches of...
Ages 13–14
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AC circuits – phase difference and power factor (cos φ)
Design & Technology · Electrical Engineering & Safety
An AC source u = U√2·sin(ωt) supplies a purely resistive load, an R–L load (motor, ballast), an R–C load, or a...
Ages 17–18
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Saving electricity – LED lamps, air conditioning and tiered billing
Design & Technology · Electrical Engineering & Safety
A house has a bank of lights and an air conditioner: choose incandescent, compact fluorescent or LED lamps for the...
Ages 17–18
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Power transmission – transformers and losses ΔP = P²R/U²
Design & Technology · Electrical Engineering & Safety
Electricity travels from the power plant through a step-up transformer, a high-voltage line and a step-down...
Ages 17–18
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Home electrical panel – main breaker, branch circuits and shock protection
Design & Technology · Electrical Engineering & Safety
The home's electrical panel has a main circuit breaker, a residual-current circuit breaker (RCCB, 30 mA) and branch...
Ages 17–18
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Logic gates and truth tables – AND, OR, NOT, NAND, NOR, XOR, half adder and circuit builder
Design & Technology · Electronics & Microcontrollers
Pick a logic gate, flip the input switches (0/1), and watch the logic level travel along the wires to the output...
Ages 17–18
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Sensor Circuits – Potential Divider with LDR and Thermistor
Design & Technology · Electronics & Microcontrollers
A potential divider made of a sensor (light-dependent resistor or NTC thermistor) and a variable resistor produces a...
Ages 13–14
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Analog electronics – rectification, filtering and transistor amplification
Design & Technology · Electronics & Microcontrollers
Three basic analog electronic circuits on one screen: half-wave rectification with a single diode, full-wave bridge...
Ages 17–18
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Microcontrollers – sensors driving an LED and a motor
Design & Technology · Electronics & Microcontrollers
A circuit with a microcontroller, a light sensor, a push button, a temperature sensor, one LED and one small motor....
Ages 17–18
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Fish pond farming – dissolved oxygen, stocking density and growth
Design & Technology · Agriculture, Forestry & Aquaculture
Cross-section of a tilapia pond: during the day algae photosynthesis raises dissolved oxygen, and at night fish and...
Ages 12–13
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Livestock feeding – ration, housing and feed conversion ratio
Design & Technology · Agriculture, Forestry & Aquaculture
A batch of livestock (broiler chickens, ducks, pigs or beef cattle) is raised from arrival at the pen to market...
Ages 12–13
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Plantation forestry – timber stock, CO₂ absorption and sustainable harvesting
Design & Technology · Agriculture, Forestry & Aquaculture
One hectare of plantation forest is tracked over 30 years: the trees grow, the timber stock increases according to...
Ages 12–13
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Fruit orchard – propagation, fertilizing, pruning and yield
Design & Technology · Agriculture, Forestry & Aquaculture
A fruit tree grows over 12 years in an orchard: students choose the tree species, the propagation method, the...
Ages 14–15
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Crop production – sowing, care and harvest yield
Design & Technology · Agriculture, Forestry & Aquaculture
A crop bed is tracked from sowing day to harvest day: the plant germinates, grows, flowers and sets seed or fruit...
Ages 12–13
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Food preservation – bacterial growth by temperature and time
Design & Technology · Food & Textiles
A food sample is left at a chosen temperature: bacteria on the food double at a generation time that depends on...
Ages 11–12
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Food processing – temperature, time and nutrient retention
Design & Technology · Food & Textiles
The kitchen simulates cooking a dish through four steps: prep, marinating or mixing, cooking, and serving. Students...
Ages 14–15
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Balanced Meal Planner – Energy, Nutrients and Traffic-Light Labels
Design & Technology · Food & Textiles
Drag foods onto breakfast, lunch, dinner and snacks to plan a day's eating. The simulation adds up energy (kcal and...
Ages 11–12
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Testing fabrics and choosing clothing – natural, man-made and blended fibers
Design & Technology · Food & Textiles
A fabric-testing lab with four familiar tests: drop water to check absorbency, crease the fabric to check wrinkling,...
Ages 11–12
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A day as an electrician – wiring a house from a floor plan
Design & Technology · Careers in Technology
Students take a work order and act as an electrician: they place ceiling lights, one-way switches, two two-way...
Ages 17–18
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Choosing a technical career – matching skills and interests to jobs
Design & Technology · Careers in Technology
A six-competency radar chart (practical/technical skill, IT skill, math and logical thinking, design skill,...
Ages 14–15
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3D
CAD and 3D Printing – From Design to Printed Part, CAD and 3D Printing Technician Careers
Design & Technology · Careers in Technology
Build a part from primitives (a filleted box, a boss, a through hole and an overhang tab) with dimensions in mm in a...
Ages 15–16
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Maintenance technician – fault-finding on a conveyor line
Design & Technology · Careers in Technology
Students act as the maintenance technician for a conveyor line with a motor, a belt, two photoelectric sensors, a...
Ages 16–17
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