3D
Published80/100 · recorded review
Inspect Working collection
Inside the workshop.
Every model is here. Open an assembly, inspect its controls, and see what still needs work.
26Models to inspect
173D primary views
9Schematics awaiting 3D
3Published locally
Drafts are unfinished and may contain inaccuracies. A 3D view or a recorded score alone is not approval. Publication requires the complete geometry, source, interaction and separate-review gates.
26 of 26 models
3D
Draft67/100 · recorded reviewReview gates incomplete
Inspect 3D
Draft75/100 · recorded reviewReview gates incomplete
Inspect 3D
Published80/100 · recorded review
Inspect 3D
Draft75/100 · recorded reviewReview gates incomplete
Inspect 3D
Mechanics
How ball bearings work
Why don’t the balls travel around a bearing at the same speed as the shaft?
Published80/100 · recorded review
Inspect 3D
DraftAwaiting review
Inspect 3D
Machines
One engine. Two different wheel speeds.
How can one engine drive two wheels that turn at different speeds?
Draft75/100 · recorded reviewReview gates incomplete
Inspect Diagram
DraftAwaiting review3D rebuild required
Inspect Diagram
DraftAwaiting review3D rebuild required
Inspect 3D
Draft80/100 · recorded review
Inspect 3D
Mechanics
How a V12 overlaps twelve engine cycles
How can twelve cylinders take turns supplying power during the same two crankshaft revolutions?
DraftAwaiting review
Inspect 3D
Draft77/100 · recorded reviewReview gates incomplete
Inspect 3D
DraftAwaiting review
Inspect 3D
Draft77/100 · recorded reviewReview gates incomplete
Inspect Diagram
DraftAwaiting review3D rebuild required
Inspect 3D
Transport
A single-seater’s invisible load
Why does aerodynamic downforce grow so quickly as a racing car goes faster?
DraftAwaiting review
Inspect Diagram
Structures
Why water pushes harder at the bottom of a dam
Why is a dam wall usually much thicker at its base?
DraftAwaiting review3D rebuild required
Inspect Diagram
Energy
A hot rock reservoir can drive a power cycle
How can underground heat become electricity without burning fuel?
DraftAwaiting review3D rebuild required
Inspect Diagram
Electricity
How an LED makes light
How can a small electric current produce a particular color of light?
DraftAwaiting review3D rebuild required
Inspect 3D
Transport
Steering with a jet of water
How can a boat turn or reverse without a propeller outside the hull?
Draft77/100 · recorded reviewReview gates incomplete
Inspect 3D
Machines
Two drill bits, two ways to break rock
What changes when a drill bit uses rolling cones instead of fixed cutters?
DraftAwaiting review
Inspect 3D
DraftAwaiting review
Inspect Diagram
DraftAwaiting review3D rebuild required
Inspect Diagram
DraftAwaiting review3D rebuild required
Inspect Diagram
Computing
Inside a laptop: paths, power, and heat
How do computation, stored data, power, and heat connect inside a laptop?
DraftAwaiting review3D rebuild required
Inspect Next on the bench.
Requested subjects with no model yet. These are not included in the inventory above.
Trebuchet
How does a falling counterweight turn the arm and sling?
Crossbow
How do the bow, string and release mechanism work together?
Seat-belt retractor
Why does the belt extend slowly but lock during a sudden pull?
Airbag system
How do sensing, inflation and venting work together in a crash?