Start with a component.
WHAT MOVES
SKC / MECHANISM LAB
INSIDE THEMACHINE.
Look beneath the surface. Move the parts. Understand what makes it work.
Sources & accuracy ↓MODEL / 001
iPhone 18 ProBlack
THREE CONFIGURATIONS / ONE EXPLORER
Road-ready · two seats · by reservation. Follow the electric energy path, tire grip and active aerodynamics.
Tesla’s current product descriptions are claims, not independent performance measurements. Internal layout, pressure, mass, thrust and control laws shown here are stated teaching assumptions.
CURRENT PRINCIPLEElectric drive / wheel forces
Change drive input and steering in the model below.
Open full work ↗
FOLLOW THE PRINCIPLE
TogetherApart
With scroll mode on, the wheel over the model controls assembly spacing. Switch it off to zoom.
Preparing the workbench…
LOOK CLOSER / LIVE ASSEMBLIES
Every part has a purpose.
Choose a component, or click the model. Follow its role in the working machine.
Preparing the component guide…
Drag to rotate. Open the shell, change the aperture, and follow the light.
MACHINE / AIRSUPSix leaves. One opening.
A rotor moves six metal blades. The four documented apertures change the amount of light reaching the sensor.
f/1.48f/1.8f/2.8f/4
Let the numbers follow the parts.
At equal exposure, relative light follows (1.48 / N)². At f/4, the ideal light is 13.69% of f/1.48. Automatic exposure can compensate.
T = (1.48 / N)²
There is a reason for every layer.
Follow the camera, board, battery, receiver coil and cooling structure. Signals and energy move; the electronic components do not spin.
One intake. Two air paths.
The fan divides air between the bypass duct and the core. Follow the cooler bypass stream and the hotter path through compressor, combustor and turbines.
Turbines drive the compressors.
Two concentric shafts connect the high- and low-pressure assemblies. The stator rows stay still while the rotors turn. Rotation is slowed so the parts remain readable.
LP SPOOLHP SPOOL
Move the throttle. See the consequence.
Airflow, compression, added heat and turbine work drive an idealized cycle solver. Thrust changes with its calculated outlet velocities and mass flow.
F = ṁᵦ Vᵦ + ṁ𝚌 V𝚌
The coils stay still.
Three-phase current creates a rotating field. Permanent-magnet and reluctance torque act on the rear rotor.
T = 1.5p[ψ i_q + (L_d − L_q)i_d i_q]
Two reductions, one differential.
Two gear stages reduce speed by 9.0363:1. The open differential shares equal torque while allowing different wheel speeds.
i = (81 / 31) × (83 / 24)
Power follows torque and speed.
Change the input and inspect voltage, current, torque and shaft power. Visible rotation uses a common slow-motion scale.
P = Tω
Wind the spring.
The crown, winding gears and arbor store energy in the mainspring. Its remaining usable turns set the reserve.
6.5 turns × 8 h / turn = 52 h
A balance sets the beat.
The hairspring stiffness and geometry-derived balance inertia set the 2.5 Hz oscillation. The lever meters the escape wheel.
f = √(k / I) / 2π
The wheel train moves the hands.
Meshing ratios connect the escape wheel to small seconds, minutes and hours. Motion is slowed together for inspection.
seconds / minutes / hours
Two sides share the journey.
The counterweight is sized to the reconstructed empty car plus half the assumed 800 kg capacity. A constant rope links their inverse travel.
y_car + y_counterweight = constant
The sheave turns with the rope.
The direct-drive motor turns the sheave. Torque follows load imbalance, acceleration, friction and rotational inertia.
ω = v / R; P = Tω
Stop, level, then open.
Select a stop and queue a payload. Doors open only when stationary and level. Drive loss applies the spring brake.
motor / regenerate / brake
Six cylinders, four strokes.
Follow intake, compression, power and exhaust through a 720° crank cycle. Each piston remains connected to its crank pin.
84 mm bore × 90 mm stroke
The cams turn at half speed.
Two camshafts operate 24 valves. The two mono-scroll turbos serve cylinders 1–3 and 4–6 respectively.
ω_cam = ω_crank / 2
Hear the real firing rate.
The sound is synthesized, not a recording. Its pulse rate follows actual RPM; visible mechanical motion is slowed independently.
6-cylinder four-stroke: f_pulse = RPM / 20
From current to contact patch.
Battery DC passes through the inverter to the drive motors. Reduction trades speed for torque; tire grip limits how much force reaches the road. Regeneration sends energy back.
P = Tω · F = T / r
Grip before the car moves.
Tesla describes active wings and a fan-assisted ground seal. A lower pressure under the floor increases the tire load even at rest. Suction pulls the car toward the road.
D = Δp A · Ftire ≤ μ(mg + D)
Gas leaves. Momentum changes.
Thrust adds rear cold-gas jets; Rocket adds perimeter thrust. Expanding stored gas produces impulse without combustion. Pressure and available impulse fall as the reservoir empties; upward force must overcome weight.
Fup − mg = ma · τ = r × F
For Rocket, compare a single jet with a force couple. An off-center jet both moves and rotates the body; paired jets can produce a turn with less net translation. Hover needs balanced force and torque.
Four rotors share the lift.
Rotors on the same diagonal turn together; the two diagonal pairs turn in opposite directions. Changing relative thrust creates pitch, roll and yaw; level hover balances total upward thrust with weight.
ΣT = mg
The body moves. The view steadies.
The two cameras share a three-axis gimbal. Its motors counter small body rotations so the cameras can keep looking in a chosen direction. Visible movement is enlarged for inspection.
ROLLPITCHYAW
Power, sense, then correct.
Battery energy reaches four brushless motors through their electronic speed controllers. Sensing informs the flight controller; obstacle detection remains dependent on the scene and operating conditions.
AN EXHIBITION THAT GROWS
Objects worth understanding.
001 / IPHONE 18 PRO
A phone, from the inside out.
Exterior, optical mechanism and wireless coupling. Three ways to discover the same device.
Explore the work ↗
002 / TURBOFAN
From airflow to thrust.
Run the fan, open the core, and follow the working cycle. A moving engine on a real support stand.
Explore the work ↗
003 / MODEL 3 REAR DRIVE
Electricity becomes motion.
A stationary stator, a rotating field, two gear stages and an open differential.
Explore the work ↗
004 / MECHANICAL WATCH
A spring becomes time.
Wind it, reveal it, and follow the escapement that regulates the wheel train.
Explore the work ↗
005 / TRACTION ELEVATOR
A balanced vertical journey.
Three floors, changing payload, regenerative travel and a spring-applied brake.
Explore the work ↗
006 / BMW S58 · 3.0T
The rhythm of an inline six.
Crank, valves, cams and twin turbos, with an illustrative sound that follows RPM.
Explore the work ↗
007 / TESLA ROADSTER
Beyond the contact patch.
Three configurations, one explorable Roadster. Trace battery power, wheel torque, active downforce and cold-gas impulse.
Explore the work ↗008 / DJI AIR 3S
Four rotors. A steady view.
Explore the foldable body, counter-rotating propellers, dual-camera gimbal, battery and obstacle sensors in an independent teaching model.
Explore the work ↗REFERENCE / RECONSTRUCTION
Grounded in the real thing.
What is documented
- 150 × 71.9 × 8.75 mm exterior, aluminium unibody and 6.3-inch OLED.
- Six laser-cut aperture blades and a rotor mechanism; f/1.48, 1.8, 2.8 and 4.
- Sensor-shift OIS, A20 Pro, vapor-chamber cooling and stationary wireless charging coils.
How the demonstration is reconstructed
Exterior proportions follow Apple specifications and repair references. Small internal geometry and movement are simplified or enlarged for teaching. The model does not reproduce Apple engineering CAD or run iOS.
Light, data and heat traces show their roles. They are visual explanations, not measurements of a live phone.
APPLE / SPECIFICATIONSiPhone 18 Pro technical specifications ↗APPLE / CAMERA MECHANISMSix-blade aperture and Pro hardware ↗APPLE / REPAIR REFERENCEInternal and exploded views ↗WPC / INDUCTIONHow Qi transfers energy ↗
A general two-spool turbofan
The fan, bypass duct, compressor, annular combustor and turbines form the working structure. The exhibit uses the Machine Skill reference as a licensed starting point and the provided video for its clear studio presentation.
It is a generic two-spool teaching engine. It does not represent a specific manufacturer's certified engine or a three-spool Trent design.
What the solver simplifies
A zero-dimensional cycle uses static sea-level conditions, component efficiencies and equivalent fully expanded nozzles. Its computed results explain relationships; they are not a certified engine performance map or flight model.
Geometry, fuel scheduling, blade mass and motion are instructional approximations. The standalone work states its equations, assumptions and displayed speed scale.
VIDEO / VISUAL REFERENCEYour reference: Machine Skill demonstration ↗MACHINE / MIT REFERENCEThe original kit and turbofan example ↗NASA / ENGINE PRINCIPLEHow a turbofan divides airflow ↗NASA / THRUSTMass flow and momentum thrust ↗
What the references establish
Tesla documents the historic rear permanent-magnet synchronous motor and nominal 355 V pack. John Kelly’s original teardown gives the 31/81 and 24/83 gear tooth counts and open differential.
Reconstructed geometry and electrical model
This is a teaching reconstruction, not Tesla CAD. Pole/slot count, air gap, magnet geometry, dq parameters, limits and efficiencies are stated assumptions. Readouts use constrained dq equations and P=Tω.
TESLA / HISTORIC MANUALRear drive and battery specifications ↗WEBERAUTO / ORIGINAL TEARDOWNJohn Kelly: drive-unit teardown ↗TI / MOTOR CONTROLField-oriented control reference ↗
A classic manual-wind reference
ETA’s current 6498-1 page documents 36.60 mm diameter, 4.50 mm movement height, 17 jewels, 18,000 vibrations/hour and a typical 52-hour reserve.
An original SKC teaching watch
The steel and sapphire watch, gear layout, enlarged spacing and simplified winding system are original reconstruction. Spring sections, elasticity, damping and efficiency are assumptions; this is not an ETA CAD replica or a certified timing instrument.
Traction principles
TK Elevator describes the direct-drive gearless motor, sheave and counterweight. Otis explains regeneration during light-car ascent or heavy-car descent.
Generic 1:1 teaching rig
The three-stop 1:1 rope model is not an Otis Gen2 reproduction, which uses 2:1 suspension. Geometry, capacity, friction, efficiencies and timing are assumptions. Rope elasticity and detailed traction are omitted; brake behavior is illustrative, not certification software.
TK ELEVATOR / GEARLESS DRIVEGearless traction explained ↗OTIS / REGENERATIVE DRIVEGen2 Switch brochure ↗
2021 M3 Competition reference
BMW documents the 2,993 cc engine, 84 × 90 mm bore/stroke, 24 valves, 375 kW and 650 Nm, with two mono-scroll turbos serving separate groups of three cylinders.
Motion, geometry and sound assumptions
The reconstruction follows the 2021 reference. Small geometry, combustion, valve profiles and timing are simplified; the displayed firing sequence is a stated teaching assumption pending a primary sequence source. Synthetic sound follows RPM. It does not reproduce BMW CAD, ECU calibration or a measured exhaust recording.
BMW / MARCH 2021 SPECIFICATIONSM3 Competition technical specifications ↗BMW / TWO TURBOCHARGERSOriginal M3 Competition press information ↗
The current official descriptions
Checked 16 October 2026: Tesla lists Performance as road-ready, two-seat and by reservation; Thrust as race-ready, two-seat and limited release; Rocket as air-ready, one-seat and invite only. Thrust is also described as an augment, so this exhibit uses three configurations.
Tesla describes active aerodynamics, fan suction and cold-gas thrust. The under-one-second 0–60 statement for Thrust is Tesla’s claim, not an independently measured result. Tesla expressly states that Rocket is not approved for public-road use and is limited to selected regions.
What this teaching model assumes
The current page does not disclose the motor count, battery capacity, vehicle mass, dimensions, range, complete internal nozzle arrangement, gas type or operating pressure. Those internals, gear ratios, efficiencies, tire grip, aerodynamic coefficients and thrust limits are reconstructed assumptions. The exterior is a visual interpretation, not Tesla CAD.
The equations demonstrate energy flow, force balance and finite gas supply. Animated rotation is slowed for inspection. Historical 2017 Roadster figures are not used as current specifications. Rocket adds a simplified rigid-body force/torque solver with assumed mass, inertia, nozzle layout and controller gains. Teaching supply isolates jet effects; finite supply demonstrates pressure loss. Neither mode validates Tesla flight performance or its flight controller.
TESLA / CURRENT PRODUCT PAGERoadster configurations and disclosures ↗
U.S. DOE / ELECTRIC DRIVEHow an electric vehicle transfers energy ↗
NASA / COLD-GAS PRINCIPLECold gas without combustion ↗
NASA / MOMENTUM & PRESSUREThe general thrust equation ↗
Public product structure
DJI product material establishes the Air 3S dual-camera system, three-axis mechanical gimbal, foldable quadrotor layout, intelligent flight battery and obstacle-sensing system. Official specifications and manuals remain the reference for operating limits.
Independent teaching reconstruction
The supplied video guides the presentation. Surfaces, internal boards, wiring and assembly spacing are reconstructed and simplified; this is not an official DJI CAD model. Animated rotor speeds and sensor ranges are illustrative, not a flight-control simulation or measured performance.