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Heat-sink skyline

A pin-fin CPU heat sink standing on a slice of motherboard, modelled so the stepped pin grid reads as a low-poly downtown skyline from every angle. Gold heat pipes arc past the base plate like elevated rails, and lit rooftops scatter across the alloy towers.

Original GLB308 KB Poster

Left rail: colours and the 4 knobs the agent wrote into this model — they rebuild the geometry and go into your download. Right rail: looks for the viewer. Drag to orbit, scroll to zoom.

Triangles: 3,132
Vertices: 9,396
Meshes · materials: 14 · 14
Size (W × H × D): 14 cm × 11 cm × 14 cm
File: GLB · 308 KB
Animation: Static
Style: Low-poly
Collection: Circuit City

Palette · named materials

base#3a883a
earth#235223
accent#d0a225
trim#8f7019
accent#debd63
earth#151619
base#1b1b22
base#7d828c
trim#f2ede2
trim#988e81

Use it

import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/circuit-city-heat-sink-skyline/5a1c1e4e7a/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +Z

How it was made

The brief given to 1DesignTool's “3D object” template:

Heat-sink skyline for the Circuit City kit. Design it as one clear asset at believable real-world scale for that setting (state the size in metres in meta.notes), with its main parts modelled and named, readable at thumbnail size and from every orbit angle. This is one part of the Circuit City kit (Low-poly style, flat-lowpoly direction): The inside of a computer as a city. Use ONLY the kit palette, by name: board green #3a883a, gold traces #d0a225, black chips #151619, led colours #988e81, board green dark #235223, gold traces dark #8f7019, board green light #5db15d, gold traces light #debd63, soot black #1b1b22, warm white #f2ede2, mid grey #7d828c, dark wood #3d2a1c. Every material's `name` must be exactly the palette colour it uses — the GLB carries these names so the kit recolours as one; an unnamed material fails delivery. Kit knob: expose a param `ledColours` (0–1, default 0.5) for the kit's "LED colours" setting wherever it makes sense on this part, and keep that id.

Agent: Claude Code · Claude Opus 5 in 1DesignTool
Generation: 7.98M tokens (97% cached) · ≈ $7.13 at API prices · 5-hour plan +13%
Direction: Low-poly · family scenes
three-check PASS · glb-lint PASS

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Named parts · 9

Heat-sink skyline
Board slab
Gold traces
Chip die
Capacitor cans
Base plate
Tower grid
Rooftop lights
Heat pipes

Note: Real-world scale: 0.14 m x 0.112 m x 0.14 m — a tower-cooler pin-fin heat sink on its CPU package and a 140 mm square of motherboard. Static asset: the GLB carries geometry only, no animation clip. 3132 triangles at the default gridSize of 7, 4574 at the maximum of 9, so every knob stays inside the 10k budget; all nine part ids survive a GLB round-trip at every parameter extreme and the model rests exactly on y = 0. Materials are named for the Circuit City palette colour they carry, not for their construction role (the role is kept in each mesh's userData.role), so the kit recolours by name. The GLB lists 14 materials for 10 palette names: the exporter clones a material per mesh, so the four colours used by two meshes each appear twice under the same name — recolouring by name still catches every instance. All geometry is de-indexed with recomputed per-face normals, because glTF has no flat-shading flag and smooth normals would lose the faceted look outside this viewer. Part ids are dotted under 'heatsinkskyline' rather than the full slug: the kit's part-id grammar rejects hyphens in the first segment. The viewer's ground disc, lights and page chrome are staging only and are not in the exported model; the page hides its own controls while a capture is running.