take the viewer inside a combustion engine demonstrating pistons and gearing
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. gemma4 · generation 10 · 9 earlier revisions in the lineage below
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Brief
The viewer is presented with a dynamic, cross-sectional cutaway view of a running internal combustion engine. The core mechanisms, including pistons, connecting rods, and the crankshaft, are in continuous motion. The central focus is the visible timing gear train: a network of gears that are actively linking the rotational movement of the crankshaft to the valves. As the crankshaft rotates, the gears mesh and transmit power, visually demonstrating the precise, synchronized timing required to open and close the intake and exhaust valves for each cylinder.
Artist's statement · qwen3-coder:30b-a3b-q4_K_M, unedited
This sketch presents a dynamic, cross-sectional view of an internal combustion engine in motion. It visualizes the core mechanical components including pistons, connecting rods, and a crankshaft, all synchronized in their movement. The central focus is the timing gear train that connects the crankshaft to valve mechanisms, showing how rotational motion is translated into precise valve actuation. The animation demonstrates the coordinated timing required for each cylinder's intake and exhaust valves to open and close at the correct moments during engine operation. The visual design emphasizes clarity and mechanical accuracy, with the engine's internal components rendered in a clean, technical style that reveals their functional relationships without unnecessary detail.
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
A Bradley–Terry score needs pairs; none has been judged.
Agents
0.09 over 32 pairs
closer to its brief: 1.58 over 32 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/998 |
|---|---|
| Raw sketch | sketch/sketch.js |
| Raw page | sketch/index.html |
| Attempts | 1 |
| Licence | CC BY 4.0 |
| Attribution | “take the viewer inside a combustion engine demonstrating pistons and…” — sketchgen entry 998, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/998/ Licensed CC BY 4.0. |
Lineage · generation 10 of 16 in the line from entry 422
take the viewer inside a combustion engine demonstrating pistons and gearing
7 generations folded · 431, 477, 582, 669, 727, 795, 846 · 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.
After this entry: 1 child
Children: entry 1059.
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.
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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: …
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 | 998 |
|---|---|
| Job | 1000 |
| 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. |
| Brief | The viewer is presented with a dynamic, cross-sectional cutaway view of a running internal combustion engine. The core mechanisms, including pistons, connecting rods, and the crankshaft, are in continuous motion. The central focus is the visible timing gear train: a network of gears that are actively linking the rotational movement of the crankshaft to the valves. As the crankshaft rotates, the gears mesh and transmit power, visually demonstrating the precise, synchronized timing required to open and close the intake and exhaust valves for each cylinder. |
| Statement | This sketch presents a dynamic, cross-sectional view of an internal combustion engine in motion. It visualizes the core mechanical components including pistons, connecting rods, and a crankshaft, all synchronized in their movement. The central focus is the timing gear train that connects the crankshaft to valve mechanisms, showing how rotational motion is translated into precise valve actuation. The animation demonstrates the coordinated timing required for each cylinder's intake and exhaust valves to open and close at the correct moments during engine operation. The visual design emphasizes clarity and mechanical accuracy, with the engine's internal components rendered in a clean, technical style that reveals their functional relationships without unnecessary detail. |
| Submitted by | profcarroll |
| Planner | gemma4:e4b · prompt planner-v1 |
| Executor | qwen3-coder:30b-a3b-q4_K_M · prompt executor-v3 |
| Rules file | control |
| Assertions | motion(idle) |
| Gate | attempt 1: gate exit 0 — motion(idle) pass |
| Attempts | 1 |
| Prompt tokens | 1707 |
| Completion tokens | 1210 |
| Wall seconds | 71.412 |
| Node shape | VM.Standard.A1.Flex 16/94 |
| Seed | 1 |
| Lineage | parent 957 · children 1059 · generation 10 · critique by gemma4:e4b |
| Source | repository · sketch.js · index.html · attempts attempt-1 |
| Created (UTC) | 2026-09-19T07:00:40Z |
| Published (UTC) | 2026-09-19T14:19:10Z |
| Publish commit | ef6caf03d4300d1670d61569b56560b9e570472d |
| Licence | CC BY 4.0 |
| Attribution | “take the viewer inside a combustion engine demonstrating pistons and…” — sketchgen entry 998, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/998/ Licensed CC BY 4.0. |
The same fields, machine-readable, in meta.json.