Free Mechanical 3D Models

Machined parts, gears, ball bearings, stepper motors and other mechanical components. Every file here is public domain: open it in your browser, then download it and use it for anything.

3503 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain

All 3503 Furniture & interiors 867 Mechanical 328 People & figures 323 Architecture & BIM 287 Electronics & PCB 282 Art & decor 220 Lighting 208 Fasteners & hardware 200 Vehicles 167 Tools & jigs 162 Nature & terrain 147 Floor plans & site plans 6 Other 365

All mechanical Piping & HVAC 49 Test parts (NIST) 33 Screws & bolts 25 Gears & gearboxes 24 Motors 19 Bearings 19 Belts, pulleys & chains 16 Linear motion 11 Retaining rings & pins 9 Robots & engines 8 Extrusion & framing 6 Washers 6 Shaft collars 6 Shaft couplings 5 Nuts 4 Springs 4

328 3D parts in Mechanical · Clear all

stlRotate in 3D
Spur gear, 24 teeth (binary)
Spur gear, 24 teeth (binary): a Stereolithography (.stl) sample file from the Innerscene 3D Viewer's Samples menu. Source: Authored by Innerscene (public/samples/SOURCES.md). License: Innerscene.
131 KBDetails & download
gltfRotate in 3D
Spur gear (glTF)
Spur gear (glTF): a glTF JSON (.gltf) sample file from the Innerscene 3D Viewer's Samples menu. Source: Authored by Innerscene (public/samples/SOURCES.md). License: Innerscene.
296 KBDetails & download
3dmRotate in 3D
Spur gear with outline curve
Spur gear with outline curve: a Rhino 3D Model (.3dm) sample file from the Innerscene 3D Viewer's Samples menu. Source: Authored by Innerscene (public/samples/SOURCES.md). License: Innerscene.
53 KBDetails & download
pvzRotate in 3D
Heart ring
Heart ring: a PTC Creo View (.pvz) sample file from the Innerscene 3D Viewer's Samples menu. Source: Thingiverse 140729 by zimirken, written to this format by Innerscene. License: CC0-1.0.
58 KBDetails & download
pvzRotate in 3D
NIST test part FTC 06
NIST test part FTC 06: a PTC Creo View (.pvz) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI geometry, written to this format by Innerscene (public/samples/SOURCES.md). License: US government work.
147 KBDetails & download
3dxmlRotate in 3D
NIST test part CTC 02
NIST test part CTC 02: a 3D XML (Dassault) (.3dxml) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI geometry, written to this format by Innerscene (public/samples/SOURCES.md). License: US government work.
1.7 MBDetails & download
eprtRotate in 3D
NIST test part FTC 10
NIST test part FTC 10: a SolidWorks eDrawings (.eprt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI geometry, written to this format by Innerscene (public/samples/SOURCES.md). License: US government work.
91 KBDetails & download
easmRotate in 3D
NIST MTC box assembly
NIST MTC box assembly: a SolidWorks eDrawings (.easm) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI geometry, written to this format by Innerscene (public/samples/SOURCES.md). License: US government work.
2.4 MBDetails & download
sevRotate in 3D
Heart ring
Heart ring: a Solid Edge Viewer (.sev) sample file from the Innerscene 3D Viewer's Samples menu. Source: Thingiverse 140729 by zimirken, written to this format by Innerscene. License: CC0-1.0.
56 KBDetails & download
sevRotate in 3D
NIST MTC box assembly
NIST MTC box assembly: a Solid Edge Viewer (.sev) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI geometry, written to this format by Innerscene (public/samples/SOURCES.md). License: US government work.
665 KBDetails & download
parRotate in 3D
NIST MTC box
NIST MTC box: a Solid Edge (.par) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI geometry, written to this format by Innerscene (public/samples/SOURCES.md). License: US government work.
495 KBDetails & download
parRotate in 3D
NIST test part FTC 06
NIST test part FTC 06: a Solid Edge (.par) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI geometry, written to this format by Innerscene (public/samples/SOURCES.md). License: US government work.
121 KBDetails & download
parRotate in 3D
Heart ring
Heart ring: a Solid Edge (.par) sample file from the Innerscene 3D Viewer's Samples menu. Source: Thingiverse 140729 by zimirken, https://archive.org/details/thingiverse-140729. License: CC0-1.0.
405 KBDetails & download
f3dRotate in 3D
Maze tile, start
Maze tile, start: a Autodesk Fusion (.f3d) sample file from the Innerscene 3D Viewer's Samples menu. Source: https://github.com/Ifi-Studierendenwerbung/Kidslab_Alvik_Puzzle_Navigator. License: CC0-1.0.
336 KBDetails & download
f3dRotate in 3D
Maze tile, outside marker
Maze tile, outside marker: a Autodesk Fusion (.f3d) sample file from the Innerscene 3D Viewer's Samples menu. Source: https://github.com/Ifi-Studierendenwerbung/Kidslab_Alvik_Puzzle_Navigator. License: CC0-1.0.
188 KBDetails & download
iptRotate in 3D
Winding staircase (iLogic)
Winding staircase (iLogic): a Autodesk Inventor (.ipt) sample file from the Innerscene 3D Viewer's Samples menu. Source: https://github.com/Demarec/iLogicParts. License: Unlicense.
757 KBDetails & download
iptRotate in 3D
NIST test part CTC 04
NIST test part CTC 04: a Autodesk Inventor (.ipt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI CAD models, https://www.nist.gov/ctl/smart-connected-systems-division/model-based-enterprise. License: US government work.
784 KBDetails & download
iptRotate in 3D
NIST test part FTC 10
NIST test part FTC 10: a Autodesk Inventor (.ipt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI CAD models, https://www.nist.gov/ctl/smart-connected-systems-division/model-based-enterprise. License: US government work.
1.1 MBDetails & download
iptRotate in 3D
NIST test part CTC 02
NIST test part CTC 02: a Autodesk Inventor (.ipt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI CAD models, https://www.nist.gov/ctl/smart-connected-systems-division/model-based-enterprise. License: US government work.
1.3 MBDetails & download
jtRotate in 3D
NIST test part FTC 09 (NX 1980)
NIST test part FTC 09 (NX 1980): a JT (.prt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI CAD models, https://www.nist.gov/ctl/smart-connected-systems-division/model-based-enterprise. License: US government work.
2.7 MBDetails & download
jtRotate in 3D
NIST MTC box (NX)
NIST MTC box (NX): a JT (.prt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI CAD models, https://www.nist.gov/ctl/smart-connected-systems-division/model-based-enterprise. License: US government work.
3.4 MBDetails & download
jtRotate in 3D
Socket head cap screw (JT)
Socket head cap screw (JT): a JT (.jt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI CAD models, https://www.nist.gov/ctl/smart-connected-systems-division/model-based-enterprise. License: US government work.
121 KBDetails & download
jtRotate in 3D
Hex nut (NX)
Hex nut (NX): a JT (.prt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI CAD models, https://www.nist.gov/ctl/smart-connected-systems-division/model-based-enterprise. License: US government work.
322 KBDetails & download
jtRotate in 3D
NIST test part CTC 02 (JT)
NIST test part CTC 02 (JT): a JT (.jt) sample file from the Innerscene 3D Viewer's Samples menu. Source: NIST MBE PMI CAD models, https://www.nist.gov/ctl/smart-connected-systems-division/model-based-enterprise. License: US government work.
139 KBDetails & download

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