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

  • Inline helical gearboxstepRotate in 3D
    Inline helical gearbox

    Inline helical gearbox. Overall size 0.301 x 0.160 x 0.168 m; original unbranded model. Overall 301 x 160 x 168 mm. Nominal size: 301.00 x 160.00 x 168.00 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.

    1.5 MBDetails & download
  • Chain drive with attached guardstepRotate in 3D
    Chain drive with attached guard

    Chain drive with attached guard. Overall size 0.520 x 0.290 x 0.227 m; original unbranded model. Overall 520 x 290 x 227 mm. Nominal size: 520.00 x 290.00 x 226.50 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
  • Bevel gearboxstepRotate in 3D
    Bevel gearbox

    Bevel gearbox. Overall size 0.143 x 0.143 x 0.098 m; original unbranded model. Overall 143 x 143 x 98 mm. Nominal size: 143.10 x 143.10 x 98.00 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.

    852 KBDetails & download
  • Belt drive with attached guardstepRotate in 3D
    Belt drive with attached guard

    Belt drive with attached guard. Overall size 0.560 x 0.290 x 0.282 m; original unbranded model. Overall 560 x 290 x 282 mm. Nominal size: 560.00 x 290.00 x 281.50 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
  • Endless webbing lifting slingstepRotate in 3D
    Endless webbing lifting sling

    Endless webbing lifting sling. Overall size 0.070 x 0.165 x 0.911 m; original unbranded model. Overall 70 x 165 x 911 mm. Nominal size: 70.50 x 164.78 x 911.67 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.

    543 KBDetails & download
  • Eye-to-eye turnbuckle M8stepM8Rotate in 3D
    Eye-to-eye turnbuckle M8

    Eye-to-eye turnbuckle M8. Overall size 0.023 x 0.014 x 0.220 m; original unbranded model. Overall 23 x 14 x 220 mm. Nominal size: 23.00 x 13.60 x 220.00 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.

    4.2 MBDetails & download
  • Eye-to-eye turnbuckle M20stepM20Rotate in 3D
    Eye-to-eye turnbuckle M20

    Eye-to-eye turnbuckle M20. Overall size 0.058 x 0.034 x 0.430 m; original unbranded model. Overall 58 x 34 x 430 mm. Nominal size: 58.00 x 34.00 x 430.00 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.

    4.7 MBDetails & download
  • Eye-to-eye turnbuckle M12stepM12Rotate in 3D
    Eye-to-eye turnbuckle M12

    Eye-to-eye turnbuckle M12. Overall size 0.036 x 0.020 x 0.275 m; original unbranded model. Overall 36 x 20 x 275 mm. Nominal size: 36.00 x 20.40 x 275.00 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.

    4.0 MBDetails & download
  • Scissor lift tablestepRotate in 3D
    Scissor lift table

    Scissor lift table. Overall size 0.928 x 0.500 x 0.870 m; original unbranded model. Overall 928 x 500 x 870 mm. Nominal size: 928.00 x 500.00 x 870.00 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.

    3.6 MBDetails & download
  • Hand pallet lifterstepRotate in 3D
    Hand pallet lifter

    Hand pallet lifter. Overall size 1.608 x 0.520 x 1.075 m; original unbranded model. Overall 1608 x 520 x 1075 mm. Nominal size: 1608.23 x 520.00 x 1074.59 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.

    2.2 MBDetails & download
  • Lifting hook with safety latchstepRotate in 3D
    Lifting hook with safety latch

    Lifting hook with safety latch. Overall size 0.098 x 0.022 x 0.160 m; original unbranded model. Overall 98 x 22 x 160 mm. Nominal size: 98.00 x 22.00 x 160.30 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.

    465 KBDetails & download
  • Folding engine cranestepRotate in 3D
    Folding engine crane

    Folding engine crane. Overall size 1.780 x 1.065 x 1.828 m; original unbranded model. Overall 1780 x 1065 x 1828 mm. Nominal size: 1780.00 x 1065.00 x 1828.27 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.

    2.9 MBDetails & download
  • Electric hoist on beam trolleystepRotate in 3D
    Electric hoist on beam trolley

    Electric hoist on beam trolley. Overall size 0.640 x 0.371 x 1.040 m; original unbranded model. Overall 640 x 371 x 1040 mm. Nominal size: 640.00 x 371.00 x 1039.86 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.

    1.6 MBDetails & download
  • D shackle, 8 mm pinstepRotate in 3D
    D shackle, 8 mm pin

    D shackle, 8 mm pin. Overall size 0.039 x 0.016 x 0.042 m; original unbranded model. Overall 39 x 16 x 42 mm. Nominal size: 38.92 x 16.40 x 41.88 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.

    110 KBDetails & download
  • D shackle, 20 mm pinstepRotate in 3D
    D shackle, 20 mm pin

    D shackle, 20 mm pin. Overall size 0.097 x 0.041 x 0.105 m; original unbranded model. Overall 97 x 41 x 105 mm. Nominal size: 97.30 x 41.00 x 104.70 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.

    119 KBDetails & download
  • D shackle, 16 mm pinstepRotate in 3D
    D shackle, 16 mm pin

    D shackle, 16 mm pin. Overall size 0.078 x 0.033 x 0.084 m; original unbranded model. Overall 78 x 33 x 84 mm. Nominal size: 77.84 x 32.80 x 83.76 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.

    119 KBDetails & download
  • D shackle, 12 mm pinstepRotate in 3D
    D shackle, 12 mm pin

    D shackle, 12 mm pin. Overall size 0.058 x 0.025 x 0.063 m; original unbranded model. Overall 58 x 25 x 63 mm. Nominal size: 58.38 x 24.60 x 62.82 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.

    110 KBDetails & download
  • Two-leg chain slingstepRotate in 3D
    Two-leg chain sling

    Two-leg chain sling. Overall size 0.815 x 0.030 x 1.143 m; original unbranded model. Overall 815 x 30 x 1143 mm. Nominal size: 814.71 x 30.00 x 1143.29 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
  • Manual chain hoiststepRotate in 3D
    Manual chain hoist

    Manual chain hoist. Overall size 0.172 x 0.131 x 0.785 m; original unbranded model. Overall 172 x 131 x 785 mm. Nominal size: 172.00 x 131.40 x 785.26 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.

    6.9 MBDetails & download
  • Bow shackle, 8 mm pinstepRotate in 3D
    Bow shackle, 8 mm pin

    Bow shackle, 8 mm pin. Overall size 0.041 x 0.016 x 0.047 m; original unbranded model. Overall 41 x 16 x 47 mm. Nominal size: 41.16 x 16.40 x 47.08 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.

    147 KBDetails & download
  • Bow shackle, 20 mm pinstepRotate in 3D
    Bow shackle, 20 mm pin

    Bow shackle, 20 mm pin. Overall size 0.103 x 0.041 x 0.118 m; original unbranded model. Overall 103 x 41 x 118 mm. Nominal size: 102.90 x 41.00 x 117.70 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.

    160 KBDetails & download
  • Bow shackle, 16 mm pinstepRotate in 3D
    Bow shackle, 16 mm pin

    Bow shackle, 16 mm pin. Overall size 0.082 x 0.033 x 0.094 m; original unbranded model. Overall 82 x 33 x 94 mm. Nominal size: 82.32 x 32.80 x 94.16 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.

    160 KBDetails & download
  • Bow shackle, 12 mm pinstepRotate in 3D
    Bow shackle, 12 mm pin

    Bow shackle, 12 mm pin. Overall size 0.062 x 0.025 x 0.071 m; original unbranded model. Overall 62 x 25 x 71 mm. Nominal size: 61.74 x 24.60 x 70.62 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.

    149 KBDetails & download
  • Rotary-vane vacuum pumpstepRotate in 3D
    Rotary-vane vacuum pump

    Rotary-vane vacuum pump. Overall size 0.345 x 0.160 x 0.250 m; original unbranded model. Overall 345 x 160 x 250 mm. Nominal size: 345.0 x 160.0 x 250.0 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.

    2.9 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.