Is the Instruments 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), 220 KB: 2,804 triangles, 8,412 vertices and 25 materials, modelled in metres at 1.5 m × 1.9 m × 100 cm.

Can I animate Instruments?

It ships as a static mesh. Its 9 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 Instruments 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.

FREEcommercial use · no sign-up

Instruments

A low-poly 1920s jazz-club band corner: an upright double bass leaning in a padded stand, a brass saxophone on a tripod stand and a velvet-red snare drum with gold hoops and a pair of brushes on its stand.

Original GLB220 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: 2,804
Vertices: 8,412
Meshes · materials: 25 · 25
Size (W × H × D): 1.5 m × 1.9 m × 100 cm
File: GLB · 220 KB
Animation: Static
Style: Low-poly
Collection: Speakeasy

Palette · named materials

dark wood — bass body, neck, pegbox and scroll (earth)#3d2a1c
black — fingerboard, tailpiece below luxury 0.75, stands, mouthpiece, brush handles (base)#151619
gold — saxophone, drum hoops and lugs, bass tuning machines from luxury 0.5; bass tailpiece from 0.75 (accent)#d0a225
gold dark — the same brass below luxury 0.5 (trim)#8f7019
gold light — bass bridge and strings; snare shell band from luxury 0.75 (accent)#debd63
velvet red — snare shell from luxury 0.25 (accent)#c32222
emerald — padded cradles and rests on the bass and sax stands (accent)#248f59
warm white — drum heads, saxophone pearl key touches (base)#f2ede2
mid grey — bass endpin, snare stand chrome, brush wires (trim)#7d828c
black dark — f-holes, saxophone bell mouth (base)#090a0b
black light — saxophone stand rubber feet (base)#3a3c40

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/speakeasy-instruments/c2767ad618/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:

Instruments for the Speakeasy 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 Speakeasy kit (Low-poly style, flat-lowpoly direction): A hidden jazz club in the 1920s. Use ONLY the kit palette, by name: black #151619, gold #d0a225, emerald #248f59, velvet red #c32222, black dark #090a0b, gold dark #8f7019, black light #3a3c40, gold 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 `luxuryLevel` (0–1, default 0.5) for the kit's "Luxury level" 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

Make your own with 1DesignTool →

Named parts · 9

Instruments
Bass body
Bass neck and scroll
Bridge, strings and tailpiece
Bass stand
Saxophone
Saxophone stand
Snare drum
Snare stand

Note: Size at the defaults: 1.53 m wide × 1.00 m deep × 1.87 m tall (the bass scroll). The double bass is a 1.85 m instrument on a 0.17 m endpin, leaning 8° back into its stand; the saxophone stands about 1.05 m to the mouthpiece on its stand, and the snare head sits 0.61 m off the floor. Origin is the bottom centre of the whole group on y = 0, front faces +Z. The GLB has 2,804 triangles in 25 meshes (one per part and colour), flat normals baked, and no animation clip. Every material is named exactly after a kit palette colour; at the default luxury 10 of the 12 colours are used (gold dark replaces gold below luxury 0.5; velvet red becomes black below 0.25). The exporter writes one material per mesh, so a colour name can appear on several materials, so recolour by name. luxuryLevel (the kit's 'Luxury level'): below 0.25 the snare shell is black; from 0.25 it is velvet red; from 0.5 the brass changes from gold dark to gold; from 0.75 a gold-light band rings the snare and the bass tailpiece turns gold. bassHeight scales the bass and the stand contacts follow it; bassLean tilts it in the stand; ensemble keeps the bass alone (1), adds the sax (2) or adds the snare (3). Params are baked into the GLB at their defaults and only change geometry when the scene is rebuilt in the viewer. glb-lint: 0 errors and 4 heuristic or direction warnings: 25 materials against the soft default of 10, duplicate per-mesh materials, non-indexed flat-shaded primitives, and intentional nesting such as keys on the sax tube or the neck in the body. plan-check passes except its part-id regex, which rejects the hyphen in the slug-based ids this library requires; a de-hyphenated copy passes. three-check accepts the ids, and all 9 survive the GLB reload. No musicians, chairs or music stands: the stage piece carries the music stands.

About the Instruments 3D model

Instruments is a free low-poly 3D model from the Speakeasy set. It measures 1.5 m × 1.9 m × 100 cm (W × H × D) at real-world scale and is built from 2,804 triangles across 25 meshes, with 9 named parts. Download the 220 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Instruments 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), 220 KB: 2,804 triangles, 8,412 vertices and 25 materials, modelled in metres at 1.5 m × 1.9 m × 100 cm.
Can I animate Instruments?: It ships as a static mesh. Its 9 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 Instruments 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.