Pumps
A low-poly public bike air pump: a green octagonal pillar on a grey footing, with a red pump head, a T-handle plunger, a street-facing pressure gauge and a black hose looped down to a holstered nozzle. Part of the Bicycle City kit.

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
- 1,300
- Vertices
- 3,900
- Meshes · materials
- 16 · 16
- Size (W × H × D)
- 70 cm × 1.4 m × 44 cm
- File
- GLB · 139 KB
- Animation
- Static
- Style
- Low-poly
- Collection
- Bicycle City
Palette · named materials
- canal green dark — pillar and base flange (body)#235223
- brick red lanes — pump head and gauge needle (accent)#c32222
- brick red lanes dark — head collar (trim)#821717
- mid grey — footing, plunger, hose union, holster, nozzle (base)#7d828c
- cream — gauge dial and reflective band (accent)#f1e7d0
- soot black — hose, grips, gauge case, anchor nuts (trim)#1b1b22
- brick red lanes light — pump head above bikeColours 0.75 (accent)#db5757
- canal green light — handle grips above bikeColours 0.75 (accent)#5db15d
Use it
import { GLTFLoader } from "three/addons/loaders/GLTFLoader.js";
const gltf = await new GLTFLoader().loadAsync(
"https://assets.stoicsoft.com/1designtool/3d/models/bicycle-city-pumps/b118b91863/model.glb"
);
scene.add(gltf.scene); // metres, +Y up, front faces +ZHow it was made
The brief given to 1DesignTool's “3D object” template:
Pumps for the Bicycle 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 Bicycle City kit (Low-poly style, flat-lowpoly direction): Streets made for bikes. Use ONLY the kit palette, by name: brick red lanes #c32222, canal green #3a883a, bright bike colours #b39d80, cream #f1e7d0, brick red lanes dark #821717, canal green dark #235223, brick red lanes light #db5757, canal green light #5db15d, 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 `bikeColours` (0–1, default 0.5) for the kit's "Bike colours" setting wherever it makes sense on this part, and keep that id.
- Agent: Claude Code · Claude Opus 5.5 in 1DesignTool
- Direction: Low-poly · family products
- three-check PASS · glb-lint PASS
Named parts · 8
- Pump
- Footing and flange
- Pillar
- Pump head
- Plunger and T-handle
- Pressure gauge
- Hose and nozzle
- Nozzle holster
Note: Size at the defaults: 0.7 m wide (x) × 0.44 m deep (z) × 1.36 m tall, measured to the top of the T-handle. The footing slab is 0.06 m thick. The pillar is about 0.2 m across and stands 0.9 m tall, and the hose loop hangs to 0.3 m. The origin is at the bottom centre of the footing, which rests on y = 0. The gauge faces +Z and the hose hangs on the +X side. The GLB has 1,300 triangles in 16 meshes, one mesh per part and colour. It is static and carries no animation clip. Normals are baked flat (non-indexed). Every material is named exactly after the kit palette colour it uses, and 6 of the 12 kit colours appear at the defaults. bikeColours (the kit's 'Bike colours') sets how loud the trim is: below 0.25 the head is soot black; up to 0.75 it is brick red; above 0.75 the head turns brick red lanes light and the grips turn canal green light. pillarHeight, handleLift (how far the plunger stands out) and hoseLoop reshape the geometry. All params are baked into the GLB at their defaults and only take effect when the scene is rebuilt in the viewer. Only the default build was rendered and checked; the param extremes were not. glb-lint: 0 errors. Its verdict reads UNVERIFIED only because no requirements contract was supplied. The 5 warnings are heuristics: duplicate material names (one material per mesh), non-indexed flat shading, overlapping boxes, and 'detached' collar and holster meshes, which are actually embedded in the pillar. plan-check rejects only the hyphenated library part ids, because its regex allows no hyphen; the same plan passes with the slug de-hyphenated. three-check and the GLB keep all 8 ids. Two fix rounds, both visual: anchor nuts and a wider footing under the hose loop, and hero framing.
About the Pumps 3D model
Pumps is a free low-poly 3D model from the Bicycle City set. It measures 70 cm × 1.4 m × 44 cm (W × H × D) at real-world scale and is built from 1,300 triangles across 16 meshes, with 8 named parts. Download the 139 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.
- Is the Pumps 3D model free for commercial use?
- Yes. It is free under the 1DesignTool 3D library license: use it in personal and commercial work — games, apps, websites, renders, ads and client projects — and modify it as you like, with no credit required. What you can't do is re-sell or re-distribute the file on its own or inside a model pack.
- What file format is it, and how big is it?
- A single binary glTF 2.0 file (.glb), 139 KB: 1,300 triangles, 3,900 vertices and 16 materials, modelled in metres at 70 cm × 1.4 m × 44 cm.
- Can I animate Pumps?
- It ships as a static mesh. Its 8 named parts are separate nodes, so you can move or animate each one in your engine.
- Which engines and tools can open it?
- Anything that reads glTF 2.0. three.js, React Three Fiber, Babylon.js, Godot 4 and Blender import the GLB directly; Unity and Unreal Engine load it through their glTF importers. The snippets above show the exact code for three.js, React Three Fiber, Godot and Blender.
- How was the Pumps 3D model made?
- Claude Code (Claude Opus 5.5) generated it inside 1DesignTool's 3D template from a written brief, then the design kit's checks verified the geometry and the GLB before it was published. You can make your own the same way with 1DesignTool.
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Free under the 1DesignTool 3D library license. Model #16 of 1865.