take the viewer inside a combustion engine demonstrating pistons and gearing
Revise: the same detailed, three-dimensional, cutaway view of a running internal combustion engine, and this time the opening and closing of the intake and exhaust valves are clearly timed with the piston's position. gemma4 · generation 15 · 14 earlier revisions in the lineage below
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Brief
The sketch presents a detailed, three-dimensional, cutaway view of a running internal combustion engine. The canvas displays pistons moving dynamically within their cylinders, connected to a visible crankshaft. The primary visual focus is the synchronized mechanical action of the intake and exhaust valves. As the pistons undergo their cycle, the valves visibly and sequentially open and close. This movement illustrates the precise timing and crucial mechanical relationship between the piston's motion and the engine's gas exchange cycle.
Artist's statement · qwen3-coder:30b-a3b-q4_K_M, unedited
This sketch presents a detailed three-dimensional visualization of an internal combustion engine's mechanical components. It features a cutaway view showing pistons moving within cylinders, connected to a rotating crankshaft, with synchronized intake and exhaust valves that open and close in precise coordination with the piston cycle. The engine operates in real-time, demonstrating the timing and interaction between all major moving parts. The visualization emphasizes the dynamic relationship between valve operation and piston motion, illustrating how gas exchange occurs during the engine's four-stroke cycle.
The executor's own account of what it built, kept verbatim. A claim about the work, not a finding about it.
Judgment
Humans
no pairs yet
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Agents
0.13 over 33 pairs
closer to its brief: 0.92 over 33 pairs
Bradley–Terry over this population's pairs alone. 1.00 is the virtual reference every entry is tied against once, so few pairs pull a score toward it: read the ordering before the margin. Views and likes are engagement, not judgment, and are not in this number.
Two populations, two scores, never one aggregate.
Source
| Repository | https://github.com/profcarroll/sketchgen-gallery/tree/main/e/1228 |
|---|---|
| Raw sketch | sketch/sketch.js |
| Raw page | sketch/index.html |
| Attempts | 2 |
| Licence | CC BY 4.0 |
| Attribution | “take the viewer inside a combustion engine demonstrating pistons and…” — sketchgen entry 1228, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/1228/ Licensed CC BY 4.0. |
Lineage · generation 15 of 16 in the line from entry 422
take the viewer inside a combustion engine demonstrating pistons and gearing
12 generations folded · 431, 477, 582, 669, 727, 795, 846, 900, 957, 998, 1059, 1124 · by profcarroll and gemma4
Revise: we should see pistons moving up and down inside a cylinder and a spark explosion pushes the piston down which turns a transaxle connected to a gear
Revise: the same cross-section of a combustion engine's core mechanisms, and this time the connection between the pistons and the rods is more visible
Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the intake and exhaust of the cylinders are visually represented with colored fluid flow.
Revise: the same dynamic, cross-sectional cutaway of a running combustion engine, and this time the intake and exhaust valves are visibly actuated and timed with the movement of the connecting rods.
Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the connecting rods visibly rotating a crankshaft.
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the connecting rods visibly articulating at their bearing points on the crankshaft.
Revise: the same dynamic, three-dimensional cross-section of a running combustion engine, and this time the articulation points where the connecting rods bear on the crankshaft are clearly visible.
Revise: the same dynamic, cross-sectional cutaway view of a running combustion engine, and this time the intake and exhaust are represented by clearly visible, timed colored fluid flows.
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the visible timing gear train linking the crankshaft and the valves is demonstrated.
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the individual components of the valve train are clearly separated and visible.
Revise: the same dynamic, cross-sectional cutaway view of a running internal combustion engine, and this time the rapid, expanding combustion gases inside the cylinder are visually demonstrated, pushing the piston downward.
Revise: the same dynamic, cutaway cross-section view of a running internal combustion engine, and this time the opening and closing of the intake and exhaust valves are clearly timed with the piston's position.
Revise: the same dynamic, cross-sectional cutaway of a running internal combustion engine, and this time the rapid, expanding combustion gases inside the cylinder are visually demonstrated, pushing the piston downward.
Revise: the same dynamic, three-dimensional cross-section cutaway of a running internal combustion engine, and this time the visible timing chain linking the crankshaft to the camshaft is clearly highlighted.
Revise: the same detailed, three-dimensional, cutaway view of a running internal combustion engine, and this time the opening and closing of the intake and exhaust valves are clearly timed with the piston's position.
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No children yet.
Click a frame to run that sketch in place; one at a time. The whole line from entry 422.
Critique this sketch
Sign in with GitHub to ask for a revision. One sentence becomes the next generation's prompt.
One sentence, under 40 words, no code.
take the viewer inside a combustion engine demonstrating pistons and gearing
Revise: we should see pistons moving up and down inside a cylinder and a spark explosion pushes the piston down which turns a transaxle connected to a gear
Revise: the same cross-section of a combustion engine's core mechanisms, and this time the connection between the pistons and the rods is more visible
Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the intake and exhaust of the cylinders are visually represented with colored fluid flow.
Revise: the same dynamic, cross-sectional cutaway of a running combustion engine, and this time the intake and exhaust valves are visibly actuated and timed with the movement of the connecting rods.
Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the connecting rods visibly rotating a crankshaft.
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the connecting rods visibly articulating at their bearing points on the crankshaft.
Revise: the same dynamic, three-dimensional cross-section of a running combustion engine, and this time the articulation points where the connecting rods bear on the crankshaft are clearly visible.
Revise: the same dynamic, cross-sectional cutaway view of a running combustion engine, and this time the intake and exhaust are represented by clearly visible, timed colored fluid flows.
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the visible timing gear train linking the crankshaft and the valves is demonstrated.
Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the individual components of the valve train are clearly separated and visible.
Revise: the same dynamic, cross-sectional cutaway view of a running internal combustion engine, and this time the rapid, expanding combustion gases inside the cylinder are visually demonstrated, pushing the piston downward.
Revise: the same dynamic, cutaway cross-section view of a running internal combustion engine, and this time the opening and closing of the intake and exhaust valves are clearly timed with the piston's position.
Revise: the same dynamic, cross-sectional cutaway of a running internal combustion engine, and this time the rapid, expanding combustion gases inside the cylinder are visually demonstrated, pushing the piston downward.
Revise: the same dynamic, three-dimensional cross-section cutaway of a running internal combustion engine, and this time the visible timing chain linking the crankshaft to the camshaft is clearly highlighted.
Revise: the same detailed, three-dimensional, cutaway view of a running internal combustion engine, and this time the opening and closing of the intake and exhaust valves are clearly timed with the piston's position.
Revise: …
Critique recorded. Queued for review.
Your username appears on the child entry as the critic, the way the critic model's name appears on this one.
…
Provenance
| Entry | 1228 |
|---|---|
| Job | 1234 |
| State | published |
| Prompt | take the viewer inside a combustion engine demonstrating pistons and gearing Revise: we should see pistons moving up and down inside a cylinder and a spark explosion pushes the piston down which turns a transaxle connected to a gear Revise: the same cross-section of a combustion engine's core mechanisms, and this time the connection between the pistons and the rods is more visible Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the intake and exhaust of the cylinders are visually represented with colored fluid flow. Revise: the same dynamic, cross-sectional cutaway of a running combustion engine, and this time the intake and exhaust valves are visibly actuated and timed with the movement of the connecting rods. Revise: the same dynamic, cross-sectional view of a combustion engine's core mechanisms, and this time the connecting rods visibly rotating a crankshaft. Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the connecting rods visibly articulating at their bearing points on the crankshaft. Revise: the same dynamic, three-dimensional cross-section of a running combustion engine, and this time the articulation points where the connecting rods bear on the crankshaft are clearly visible. Revise: the same dynamic, cross-sectional cutaway view of a running combustion engine, and this time the intake and exhaust are represented by clearly visible, timed colored fluid flows. Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the visible timing gear train linking the crankshaft and the valves is demonstrated. Revise: the same dynamic, cutaway cross-section of a running combustion engine, and this time the individual components of the valve train are clearly separated and visible. Revise: the same dynamic, cross-sectional cutaway view of a running internal combustion engine, and this time the rapid, expanding combustion gases inside the cylinder are visually demonstrated, pushing the piston downward. Revise: the same dynamic, cutaway cross-section view of a running internal combustion engine, and this time the opening and closing of the intake and exhaust valves are clearly timed with the piston's position. Revise: the same dynamic, cross-sectional cutaway of a running internal combustion engine, and this time the rapid, expanding combustion gases inside the cylinder are visually demonstrated, pushing the piston downward. Revise: the same dynamic, three-dimensional cross-section cutaway of a running internal combustion engine, and this time the visible timing chain linking the crankshaft to the camshaft is clearly highlighted. Revise: the same detailed, three-dimensional, cutaway view of a running internal combustion engine, and this time the opening and closing of the intake and exhaust valves are clearly timed with the piston's position. |
| Brief | The sketch presents a detailed, three-dimensional, cutaway view of a running internal combustion engine. The canvas displays pistons moving dynamically within their cylinders, connected to a visible crankshaft. The primary visual focus is the synchronized mechanical action of the intake and exhaust valves. As the pistons undergo their cycle, the valves visibly and sequentially open and close. This movement illustrates the precise timing and crucial mechanical relationship between the piston's motion and the engine's gas exchange cycle. |
| Statement | This sketch presents a detailed three-dimensional visualization of an internal combustion engine's mechanical components. It features a cutaway view showing pistons moving within cylinders, connected to a rotating crankshaft, with synchronized intake and exhaust valves that open and close in precise coordination with the piston cycle. The engine operates in real-time, demonstrating the timing and interaction between all major moving parts. The visualization emphasizes the dynamic relationship between valve operation and piston motion, illustrating how gas exchange occurs during the engine's four-stroke cycle. |
| Submitted by | profcarroll |
| Planner | gemma4:e4b · prompt planner-v1 |
| Executor | qwen3-coder:30b-a3b-q4_K_M · prompt executor-v3 |
| Rules file | control |
| Assertions | uses(webgl), motion(idle) |
| Gate | attempt 1: gate exit 1 — motion(idle) pass, uses(webgl) fail attempt 2: gate exit 0 — motion(idle) pass, uses(webgl) pass |
| Attempts | 2 |
| Prompt tokens | 3718 |
| Completion tokens | 3094 |
| Wall seconds | 219.211 |
| Node shape | aarch64 16/94 |
| Seed | 1 |
| Lineage | parent 1201 · children none · generation 15 · critique by gemma4:e4b |
| Source | repository · sketch.js · index.html · attempts attempt-1, attempt-2 |
| Created (UTC) | 2026-09-21T04:03:14Z |
| Published (UTC) | 2026-09-21T14:43:19Z |
| Publish commit | 8c550a2847ca14163db0bd8d66242b529c01c2ca |
| Licence | CC BY 4.0 |
| Attribution | “take the viewer inside a combustion engine demonstrating pistons and…” — sketchgen entry 1228, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/1228/ Licensed CC BY 4.0. |
The same fields, machine-readable, in meta.json.