Free CAD Solid Models

Exact solid geometry (STEP and similar), ready to open in any CAD system, measure, section and modify. Every file here is public domain: open it in your browser, then download it and use it for anything.

10468 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain

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All 796Mechanical 306Fasteners & hardware 188Lighting 115Architecture & BIM 76Tools & jigs 59Electronics & PCB 57Furniture & interiors 22Vehicles 12Other 2
Features:Real-world scale 771Assembly 474Low-poly 57✓ CAD solid 796

796 3D parts with CAD solid · Clear all

  • NIST test part FTC 06iptRotate in 3D
    NIST test part FTC 06

    A machined block with pockets, bosses and drilled holes from the NIST fully toleranced test cases. NIST Autodesk Inventor 2021 part, unmodified.

    736 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST test part CTC 03iptRotate in 3D
    NIST test part CTC 03

    A bent bracket with flanges, slots and hole patterns from the NIST combined test cases. NIST Autodesk Inventor 2021 part, unmodified.

    487 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST test part CTC 01iptRotate in 3D
    NIST test part CTC 01

    A machined block with bosses, slots and counterbored holes from the NIST combined test cases. NIST Autodesk Inventor 2021 part, unmodified.

    481 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST MTC box coversldprtRotate in 3D
    NIST MTC box cover

    The machined cover of the NIST manufacturing test case box, pocketed on the inside. NIST SolidWorks MBD 2018 part, unmodified.

    838 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST test part FTC 11sldprtRotate in 3D
    NIST test part FTC 11

    A thin flat ring from the NIST fully toleranced test cases. NIST SolidWorks MBD 2018 part, unmodified.

    264 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST test part FTC 08sldprtRotate in 3D
    NIST test part FTC 08

    A machined housing with a pocketed face and cut-outs from the NIST fully toleranced test cases. NIST SolidWorks MBD 2018 part, unmodified.

    878 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST test part CTC 05sldprtRotate in 3D
    NIST test part CTC 05

    A round flange with a raised hub, centre post and bolt-hole circle from the NIST combined test cases. NIST SolidWorks MBD 2018 part, unmodified.

    445 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST test part CTC 04sldprtRotate in 3D
    NIST test part CTC 04

    A long machined plate with slots, steps and hole patterns from the NIST combined test cases. NIST SolidWorks MBD 2018 part, unmodified.

    830 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST test part CTC 03sldprtRotate in 3D
    NIST test part CTC 03

    A bent bracket with flanges, slots and hole patterns from the NIST combined test cases. NIST SolidWorks MBD 2018 part, unmodified.

    403 KB · by National Institute of Standards and TechnologyDetails & download
  • NIST test part CTC 01sldprtRotate in 3D
    NIST test part CTC 01

    A machined block with bosses, slots and counterbored holes from the NIST combined test cases. NIST SolidWorks MBD 2018 part, unmodified.

    509 KB · by National Institute of Standards and TechnologyDetails & download
  • Shelf bracket STEP + STL + DXF (tar.gz)gzRotate in 3D
    Shelf bracket STEP + STL + DXF (tar.gz)

    Compressed tar of a 5 mm steel wall shelf bracket: STEP solid, STL mesh and a dimensioned DXF drawing.

    74 KBDetails & download
  • Worm reduction gearboxstepRotate in 3D
    Worm reduction gearbox

    Worm reduction gearbox. Overall size 0.176 x 0.161 x 0.144 m; original unbranded model. Overall 176 x 161 x 144 mm. Nominal size: 176.00 x 161.00 x 144.00 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.

    1.3 MBDetails & download
  • Variable speed mechanical drivestepRotate in 3D
    Variable speed mechanical drive

    Variable speed mechanical drive. Overall size 0.641 x 0.338 x 0.270 m; original unbranded model. Overall 641 x 338 x 270 mm. Nominal size: 641.00 x 338.00 x 270.00 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.

    5.7 MBDetails & download
  • Right-angle mechanical drivestepRotate in 3D
    Right-angle mechanical drive

    Right-angle mechanical drive. Overall size 0.046 x 0.046 x 0.022 m; original unbranded model. Overall 46 x 46 x 22 mm. Nominal size: 46.00 x 46.00 x 22.25 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.

    556 KBDetails & download
  • Planetary gearbox, nominal 5:1 ratiostepRotate in 3D
    Planetary gearbox, nominal 5:1 ratio

    Planetary gearbox, nominal 5:1 ratio. Overall size 0.200 x 0.130 x 0.219 m; original unbranded model. Overall 200 x 130 x 219 mm. Nominal size: 200.00 x 130.00 x 219.00 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.

    16.8 MBDetails & download
  • Planetary gearbox, nominal 3:1 ratiostepRotate in 3D
    Planetary gearbox, nominal 3:1 ratio

    Planetary gearbox, nominal 3:1 ratio. Overall size 0.200 x 0.130 x 0.219 m; original unbranded model. Overall 200 x 130 x 219 mm. Nominal size: 200.00 x 130.00 x 219.00 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.

    13.3 MBDetails & download
  • Planetary gearbox, nominal 10:1 ratiostepRotate in 3D
    Planetary gearbox, nominal 10:1 ratio

    Planetary gearbox, nominal 10:1 ratio. Overall size 0.218 x 0.130 x 0.237 m; original unbranded model. Overall 218 x 130 x 237 mm. Nominal size: 218.00 x 130.00 x 237.00 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.

    28.8 MBDetails & download
  • 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

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