Is the Service tower 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), 301 KB: 2,972 triangles, 8,916 vertices and 22 materials, modelled in metres at 18 m × 68 m × 22 m.

Can I animate Service tower?

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 Service tower 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

Service tower

A low-poly rocket launch service tower for the Rocket Launch Site kit. A square launch-orange lattice tower rises 56 m around a pale elevator core. Two steel umbilical arms with black hose bundles and an enclosed white crew access arm with a white room swing out from its front face, and a hammerhead crane stands on the roof.

Original GLB301 KB Poster

Left rail: colours and the 3 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: 2,972
Vertices: 8,916
Meshes · materials: 22 · 22
Size (W × H × D): 18 m × 68 m × 22 m
File: GLB · 301 KB
Animation: Static
Style: Low-poly
Collection: Rocket Launch Site

Palette · named materials

launch orange — tower legs, girts and X-braces (body)#ed7e1d
launch orange dark — crane pedestal, jib and A-frame (machine)#af590e
launch orange light — crane hook block (accent)#eea668
steel — service decks, roof slab, umbilical trusses, hinge posts, arm floor beams (deck)#7e8c9a
white — crew access arm gallery, machine house, crane cab (arm)#f4f1ec
white light — white room at the crew arm tip (room)#f9f8f6
white dark — elevator core (core)#d7cebc
sky blue — windows and core doors (glass)#2e67b8
soot black — hose bundles, base plates, counterweight, crane cables (line)#1b1b22
mid grey — concrete footing (base)#7d828c

Use it

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

const gltf = await new GLTFLoader().loadAsync(
  "https://assets.stoicsoft.com/1designtool/3d/models/rocket-launch-site-service-tower/fea85f04d7/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:

Service tower for the Rocket Launch Site 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 Rocket Launch Site kit (Low-poly style, flat-lowpoly direction): Countdown at the coast. Use ONLY the kit palette, by name: white #f4f1ec, launch orange #ed7e1d, steel #7e8c9a, sky blue #2e67b8, white dark #d7cebc, launch orange dark #af590e, white light #f9f8f6, launch orange light #eea668, 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 `rocketDesign` (0–1, default 0.5) for the kit's "Rocket design" 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 scenes
three-check PASS · glb-lint PASS

Make your own with 1DesignTool →

Named parts · 9

Service tower
Footing
Tower lattice
Elevator core
Service decks
Roof and machine house
Umbilical arms
Crew access arm
Hammerhead crane

Note: Size at the defaults: 68.5 m tall to the crane A-frame (56 m of lattice in eight 7 m levels on a 1.1 m footing, plus roof and crane); the tower itself is 8.6 m square on a 12 m × 12 m × 0.8 m concrete footing. The arms swing out toward +Z, where the rocket would stand; with armSwing = 1 the crew access arm reaches 15.9 m forward of the origin. The origin is the bottom centre of the footing on y = 0, not the centre of the bounding box: the arms and crane jib reach past the footing, so the full bounds at the defaults are x −6.0…11.6, z −6.0…15.9. The GLB has 3262 triangles in 24 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; 10 of the 12 palette colours appear (warm white and dark wood are not used). rocketDesign (the kit's 'Rocket design') sets the tower for the rocket it serves: 0 gives 6 levels (42 m of lattice, 2926 tris), 1 gives 10 levels (70 m, 3598 tris); the two umbilical arms sit at 35% and 65% of the height and the crew arm one level below the roof. armSwing folds the arms flat along the front face at 0 and points them straight out at 1. craneSlew turns the hammerhead jib about its pedestal. Params are baked into the GLB at their defaults and only change the geometry when the scene is rebuilt in the viewer. three-check also passed with every param at its minimum and at its maximum. glb-lint: 0 errors and 6 heuristic warnings, all expected (overall verdict UNVERIFIED only because no requirements contract was supplied). The warnings are: material slots (24 meshes share 10 palette names), duplicate material names, non-indexed flat shading, overlapping sibling boxes (windows and doors are set into their walls on purpose), 'detached' meshes (the decks and roof touch the tower lattice, which is another part), and the scale heuristic flagging 68.5 m against a 1 m reference. plan-check rejects only the hyphenated library part ids, because its regex allows no hyphen in the first segment; the same plan passes with the slug de-hyphenated, and three-check and the GLB keep all 9 ids. Fix rounds: (1) the hero turned from azimuth 34° to 52° so the arms read in profile, the umbilical trusses and hoses were thickened, and the cropped top view was reframed; (2) the top view was widened so the crane jib tip is not clipped.

About the Service tower 3D model

Service tower is a free low-poly 3D model from the Rocket Launch Site set. It measures 18 m × 68 m × 22 m (W × H × D) at real-world scale and is built from 2,972 triangles across 22 meshes, with 9 named parts. Download the 301 KB GLB and drop it into three.js, React Three Fiber, Godot or Blender — free for commercial use, no attribution required.

Is the Service tower 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), 301 KB: 2,972 triangles, 8,916 vertices and 22 materials, modelled in metres at 18 m × 68 m × 22 m.
Can I animate Service tower?: 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 Service tower 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.