Free 3D Assemblies

Models made of several parts. Every file here is public domain: open it in your browser, then download it and use it for anything.

3354 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain

All 2199Furniture & interiors 656Electronics & PCB 204Mechanical 194Architecture & BIM 191People & figures 172Lighting 163Art & decor 161Tools & jigs 133Vehicles 88Nature & terrain 58Fasteners & hardware 35Other 175
Features:3D printable 34Real-world scale 2199Textured / materials 1702✓ Assembly 2199Low-poly 206CAD solid 463

2199 3D parts with Assembly · Clear all

  • Submersible water pumpstepRotate in 3D
    Submersible water pump

    Submersible water pump. Overall size 0.309 x 0.194 x 0.341 m; original unbranded model. Overall 309 x 194 x 341 mm. Nominal size: 309.0 x 194.0 x 341.2 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    1.3 MBDetails & download
  • Screw compressor cabinetstepRotate in 3D
    Screw compressor cabinet

    Screw compressor cabinet. Overall size 0.600 x 0.711 x 0.980 m; original unbranded model. Overall 600 x 711 x 980 mm. Nominal size: 600.0 x 710.7 x 980.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    3.5 MBDetails & download
  • Wheeled pressure washerstepRotate in 3D
    Wheeled pressure washer

    Wheeled pressure washer. Overall size 0.385 x 0.356 x 0.883 m; original unbranded model. Overall 385 x 356 x 883 mm. Nominal size: 385.2 x 356.5 x 883.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    2.8 MBDetails & download
  • Portable air compressorstepRotate in 3D
    Portable air compressor

    Portable air compressor. Overall size 0.308 x 0.261 x 0.347 m; original unbranded model. Overall 308 x 261 x 347 mm. Nominal size: 308.0 x 260.8 x 347.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    1.7 MBDetails & download
  • Piston air compressor, 50 litre receiverstepRotate in 3D
    Piston air compressor, 50 litre receiver

    Piston air compressor, 50 litre receiver. Overall size 0.715 x 0.452 x 0.667 m; original unbranded model. Overall 715 x 452 x 667 mm. Nominal size: 714.8 x 452.3 x 667.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    2.1 MBDetails & download
  • Centrifugal pump with electric motorstepRotate in 3D
    Centrifugal pump with electric motor

    Centrifugal pump with electric motor. Overall size 0.330 x 0.740 x 0.358 m; original unbranded model. Overall 330 x 740 x 358 mm. Nominal size: 330.0 x 740.0 x 358.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    3.3 MBDetails & download
  • Workshop table sawstepRotate in 3D
    Workshop table saw

    Workshop table saw. Overall size 1.180 x 0.850 x 0.973 m; original unbranded model. Overall 1180 x 850 x 973 mm. Nominal size: 1180.0 x 850.2 x 973.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    3.0 MBDetails & download
  • Pillar milling unitstepRotate in 3D
    Pillar milling unit

    Pillar milling unit. Overall size 0.838 x 0.657 x 1.096 m; original unbranded model. Overall 838 x 657 x 1096 mm. Nominal size: 838.1 x 657.0 x 1095.6 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    7.3 MBDetails & download
  • Metalworking lathestepRotate in 3D
    Metalworking lathe

    Metalworking lathe. Overall size 1.680 x 0.580 x 1.311 m; original unbranded model. Overall 1680 x 580 x 1311 mm. Nominal size: 1680.0 x 580.0 x 1311.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    7.0 MBDetails & download
  • Enclosed laser cutterstepRotate in 3D
    Enclosed laser cutter

    Enclosed laser cutter. Overall size 1.400 x 0.988 x 1.088 m; original unbranded model. Overall 1400 x 988 x 1088 mm. Nominal size: 1400.0 x 987.5 x 1088.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    5.9 MBDetails & download
  • Workshop hydraulic pressstepRotate in 3D
    Workshop hydraulic press

    Workshop hydraulic press. Overall size 0.988 x 0.700 x 1.790 m; original unbranded model. Overall 988 x 700 x 1790 mm. Nominal size: 987.5 x 700.0 x 1790.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    1.4 MBDetails & download
  • Hobby three-axis CNC millstepRotate in 3D
    Hobby three-axis CNC mill

    Hobby three-axis CNC mill. Overall size 0.453 x 0.437 x 0.629 m; original unbranded model. Overall 453 x 437 x 629 mm. Nominal size: 453.0 x 437.5 x 629.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    3.1 MBDetails & download
  • Floor drill pressstepRotate in 3D
    Floor drill press

    Floor drill press. Overall size 0.345 x 0.573 x 1.650 m; original unbranded model. Overall 345 x 573 x 1650 mm. Nominal size: 345.0 x 573.0 x 1650.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    3.1 MBDetails & download
  • CNC vertical machining centrestepRotate in 3D
    CNC vertical machining centre

    CNC vertical machining centre. Overall size 2.330 x 1.713 x 2.630 m; original unbranded model. Overall 2.3 x 1.7 x 2.6 m. Nominal size: 2330.0 x 1713.0 x 2630.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    4.4 MBDetails & download
  • CNC router with 1200 x 1200 mm bedstepRotate in 3D
    CNC router with 1200 x 1200 mm bed

    CNC router with 1200 x 1200 mm bed. Overall size 1.555 x 1.500 x 1.425 m; original unbranded model. Overall 1555 x 1500 x 1425 mm. Nominal size: 1555.0 x 1500.0 x 1425.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    8.8 MBDetails & download
  • Twin-wheel bench grinderstepRotate in 3D
    Twin-wheel bench grinder

    Twin-wheel bench grinder. Overall size 0.476 x 0.272 x 0.348 m; original unbranded model. Overall 476 x 272 x 348 mm. Nominal size: 476.0 x 272.0 x 347.5 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    1.1 MBDetails & download
  • Bench drill pressstepRotate in 3D
    Bench drill press

    Bench drill press. Overall size 0.260 x 0.438 x 0.840 m; original unbranded model. Overall 260 x 438 x 840 mm. Nominal size: 260.0 x 438.0 x 840.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    2.0 MBDetails & download
  • Vertical band sawstepRotate in 3D
    Vertical band saw

    Vertical band saw. Overall size 0.821 x 0.650 x 1.897 m; original unbranded model. Overall 821 x 650 x 1897 mm. Nominal size: 821.0 x 650.1 x 1897.4 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    2.8 MBDetails & download
  • V-twin piston enginestepRotate in 3D
    V-twin piston engine

    V-twin piston engine. Overall size 0.429 x 0.502 x 0.437 m; original unbranded model. Overall 429 x 502 x 437 mm. Nominal size: 429.3 x 502.2 x 436.5 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    5.3 MBDetails & download
  • Single-cylinder four-stroke generator enginestepRotate in 3D
    Single-cylinder four-stroke generator engine

    Single-cylinder four-stroke generator engine. Overall size 0.394 x 0.479 x 0.442 m; original unbranded model. Overall 394 x 479 x 442 mm. Nominal size: 393.5 x 478.6 x 442.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    4.1 MBDetails & download
  • Seven-cylinder radial aero engine, cutawaystepRotate in 3D
    Seven-cylinder radial aero engine, cutaway

    Seven-cylinder radial aero engine, cutaway. Overall size 0.403 x 0.796 x 0.778 m; original unbranded model. Overall 403 x 796 x 778 mm. Nominal size: 403.0 x 795.9 x 778.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    16.1 MBDetails & download
  • Seven-cylinder radial aero engine, assembledstepRotate in 3D
    Seven-cylinder radial aero engine, assembled

    Seven-cylinder radial aero engine, assembled. Overall size 0.403 x 0.796 x 0.778 m; original unbranded model. Overall 403 x 796 x 778 mm. Nominal size: 403.0 x 795.9 x 778.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    13.9 MBDetails & download
  • Four-cylinder inline piston engine, cutawaystepRotate in 3D
    Four-cylinder inline piston engine, cutaway

    Four-cylinder inline piston engine, cutaway. Overall size 0.604 x 0.492 x 0.666 m; original unbranded model. Overall 604 x 492 x 666 mm. Nominal size: 604.0 x 492.0 x 666.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    13.6 MBDetails & download
  • Four-cylinder inline piston engine, assembledstepRotate in 3D
    Four-cylinder inline piston engine, assembled

    Four-cylinder inline piston engine, assembled. Overall size 0.604 x 0.531 x 0.666 m; original unbranded model. Overall 604 x 531 x 666 mm. Nominal size: 604.0 x 531.0 x 666.0 mm overall. Exact solid STEP geometry in millimeters, opens in any CAD system. Export to STL, OBJ, GLB and other formats from the viewer. Nominal dimensions for layout, fit checks and visualization; they do not establish a manufacturing tolerance class, load rating or standards certification. Original Innerscene model, released CC0.

    15.0 MBDetails & download

Looking for 2D drawings, blocks and details? Browse the Drawing Library (1332).

Request a Part

If the library doesn’t have what you need, tell us. Requests decide what we add next. Leave an email and we’ll send you one message when it’s added.

Share Your Parts

Designed a part others could use? Upload STEP, STL, SketchUp or other 3D files, or a zip of them, and describe each one. Everything is reviewed before it appears, released under CC0, and kept for 1 to 5 years depending on file size. You can also add a single file from the viewer’s Share dialog. See the library terms.

Contribute parts

Parts here are contributed by their authors or come from public-domain collections. If you believe a file infringes your rights, use Report on its viewer page or see our copyright policy.