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

2199 3D parts with Assembly · Clear all

  • Ceiling grid and 2 x 4 ft tilestep2 x 4 ftRotate in 3D
    Ceiling grid and 2 x 4 ft tile

    Ceiling grid and 2 x 4 ft tile, modeled from published dimensions. Overall 609.6 x 1219.2 x 32 mm. Key dimensions: grid height 32 mm. Original nominal ceiling-grid section. Tile has 1 mm edge clearance inside the vertical webs and 4 mm bearing on each support flange. Profiles are simplified; ceiling suspension wires and proprietary connector tabs are omitted. 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.

  • Ceiling grid and 2 x 2 ft tilestep2 x 2 ftRotate in 3D
    Ceiling grid and 2 x 2 ft tile

    Ceiling grid and 2 x 2 ft tile, modeled from published dimensions. Overall 609.6 x 609.6 x 32 mm. Key dimensions: grid height 32 mm. Original nominal ceiling-grid section. Tile has 1 mm edge clearance inside the vertical webs and 4 mm bearing on each support flange. Profiles are simplified; ceiling suspension wires and proprietary connector tabs are omitted. 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.

  • Twin-head emergency lightstepRotate in 3D
    Twin-head emergency light

    Twin-head emergency light, modeled from published dimensions. Overall 330 x 90 x 245 mm. Key dimensions: lamp diameter 80 mm. Original architectural layout model. No emergency duration, lumen output, electrical listing or code compliance is implied. Letters are editable solid geometry; battery, circuitry and wiring are omitted. 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.

  • Exit signstepRotate in 3D
    Exit sign

    Exit sign, modeled from published dimensions. Overall 320 x 90 x 190 mm. Key dimensions: width 320 mm; depth 90 mm; height 190 mm. Original architectural layout model. No emergency duration, lumen output, electrical listing or code compliance is implied. Letters are editable solid geometry; battery, circuitry and wiring are omitted. 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.

  • Wall pack lightstepRotate in 3D
    Wall pack light

    Wall pack light, modeled from published dimensions. Overall 320 x 125 x 210 mm. Key dimensions: width 320 mm; depth 125 mm; height 210 mm; face axis -Y. Original unbranded architectural fixture with explicit nominal dimensions. Wiring, anchors and optical internals are omitted; diffuser is unlit and has no assigned photometry or electrical performance. 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.

  • Area pole lightstepRotate in 3D
    Area pole light

    Area pole light, modeled from published dimensions. Overall 1 x 0.3 x 4.1 m. Key dimensions: pole height 4000 mm; mount square 170 mm; mount hole 22 mm. Original unbranded architectural fixture with explicit nominal dimensions. Wiring, anchors and optical internals are omitted; diffuser is unlit and has no assigned photometry or electrical performance. 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.

  • Bollard lightstepRotate in 3D
    Bollard light

    Bollard light, modeled from published dimensions. Overall 140 x 140 x 786 mm. Key dimensions: diameter 140 mm; height 786 mm. Original unbranded architectural fixture with explicit nominal dimensions. Wiring, anchors and optical internals are omitted; diffuser is unlit and has no assigned photometry or electrical performance. 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.

  • 700 mm track with three light headsstepRotate in 3D
    700 mm track with three light heads

    700 mm track with three light heads, modeled from published dimensions. Overall 700 x 68 x 175 mm. Key dimensions: track length 700 mm; track width 35 mm; head diameter 68 mm; head length 110 mm; head pitch 200 mm. Original unbranded three-head track assembly. Models physical fixture envelopes only; electrical contacts, adjustment locks and optical internals are omitted. No photometry or electrical rating. 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.

  • 1200 mm suspended linear pendantstepRotate in 3D
    1200 mm suspended linear pendant

    1200 mm suspended linear pendant, modeled from published dimensions. Overall 55 x 1200 x 735 mm. Key dimensions: length 1200 mm; width 55 mm; body depth 65 mm; suspension 650 mm; face axis -Z. Original nominal layout fixture with downward-facing diffuser and overhead canopy. Cable anchors are simplified. Unlit diffuser; no measured photometry or electrical rating. 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 inch recessed downlightstepRotate in 3D
    6 inch recessed downlight

    6 inch recessed downlight, modeled from published dimensions. Overall 187.4 x 187.4 x 113 mm. Key dimensions: nominal inches 6; cutout 152.4 mm; trim diameter 187.4 mm; recess depth 110 mm; face axis +Z. Original nominal layout design; circular mounting opening is exactly the declared cutout. Spring clips, wiring and LED circuitry are omitted. Diffuser is unlit; no photometry, thermal or electrical rating. 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 inch recessed downlightstepRotate in 3D
    4 inch recessed downlight

    4 inch recessed downlight, modeled from published dimensions. Overall 136.6 x 136.6 x 88 mm. Key dimensions: nominal inches 4; cutout 101.6 mm; trim diameter 136.6 mm; recess depth 85 mm; face axis +Z. Original nominal layout design; circular mounting opening is exactly the declared cutout. Spring clips, wiring and LED circuitry are omitted. Diffuser is unlit; no photometry, thermal or electrical rating. 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.

  • Self-watering planter assemblystlRotate in 3D
    Self-watering planter assembly

    Self-watering planter assembly, modeled from published dimensions. Overall 160 x 160 x 128.3 mm. Key dimensions: reservoir diameter 160 mm; reservoir height 125 mm; wall 3 mm; overflow center height 38 mm; overflow diameter 6 mm; fill bore 10 mm; wick basket inner diameter 14 mm; wick basket bottom 3.3 mm; soil floor height 35 mm. Original solid CAD modeled from scratch. Closed meshes and digital clearances are checked; physical printing and load/flow performance have not been tested. Use millimeter units for STL. Original reservoir, tapered soil insert, slotted wick basket, fill tube and overflow. Fit an absorbent wick through the basket; soil alone is not assumed to establish reliable capillary flow. Print reservoir and insert separately. Print the insert upright with removable external supports beneath the soil floor and flange. The displayed assembly leaves 0.3 mm vertical separation at the hanging flange; separate-parts variant makes both solids accessible. Water tightness and watering performance require a physical print check. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to 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.

  • Honeycomb storage assemblystlRotate in 3D
    Honeycomb storage assembly

    Honeycomb storage assembly, modeled from published dimensions. Overall 160 x 59 x 140 mm. Key dimensions: hex opening vertex diameter 24 mm; adapter vertex diameter 23.6 mm; mount holes 4.5 mm; adapter retaining screw clearance 3.2 mm; wall plane XZ; accessories face -Y. Original solid CAD modeled from scratch. Closed meshes and digital clearances are checked; physical printing and load/flow performance have not been tested. Use millimeter units for STL. Original 24 mm vertex-diameter hex grid, hook and cup. This is its own storage interface; compatibility with another honeycomb-wall product is not asserted. Adapters have 0.2 mm radial corner clearance and a through-hole for an M3 retaining screw/washer from the rear. Fasteners are not included. Print panel flat and accessories in appropriate supported orientations; no load rating is assigned. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to 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.

  • Gridfinity-compatible fitted storage setstlRotate in 3D
    Gridfinity-compatible fitted storage set

    Gridfinity-compatible fitted storage set, modeled from published dimensions. Overall 84 x 84 x 23.4 mm. Key dimensions: grid pitch 42 mm; bin nominal height 21 mm; bin foot top width 41.5 mm; base height 7 mm; base socket radial clearance 0.3 mm; bin wall 1.6 mm; stacking lip false. Original solid CAD modeled from scratch. Closed meshes and digital clearances are checked; physical printing and load/flow performance have not been tested. Use millimeter units for STL. Original CAD implementing the documented 42 mm Gridfinity grid and stepped 4.75 mm foot. Credit for the Gridfinity system: Zack Freedman; dimension references are community-maintained drawings. Bins have plain open rims without stacking lips or magnet pockets. Compatibility here is with the baseplate foot interface; stack locking and magnetic retention are not included. Print components separately with feet/base bottoms on the bed. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to 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 using the documented Gridfinity grid interface (Gridfinity by Zack Freedman); released CC0.

  • Drag chain five-link assemblystlRotate in 3D
    Drag chain five-link assembly

    Drag chain five-link assembly, modeled from published dimensions. Overall 138 x 27 x 14 mm. Key dimensions: link pitch 26 mm; inside width 17 mm; inside height 10 mm; pin diameter 3.6 mm; pivot bore 4.1 mm; link count 5. Original solid CAD modeled from scratch. Closed meshes and digital clearances are checked; physical printing and load/flow performance have not been tested. Use millimeter units for STL. Original cable-carrier links with open longitudinal channel, integrated transverse pins and offset pivot ears. Links are separate closed solids with 0.25 mm radial pivot clearance. Print links separately and flex the rear ears over the adjacent pins during assembly. The five-link preview is a layout assembly, not a print-in-place claim. Flex strain, bend stops, fatigue and minimum bend radius are not rated. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to 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.

  • 80 x 50 x 25 mm project box - lid asidestlRotate in 3D
    80 x 50 x 25 mm project box - lid aside

    80 x 50 x 25 mm project box - lid aside, modeled from published dimensions. Overall 172 x 50 x 22.5 mm. Key dimensions: wall 2.5 mm; lip clearance each side 0.2 mm; lid screw clearance 2.8 mm; boss pilot 2.2 mm; display open true. Original dimensioned enclosure with four blind pilot bosses and a recessed locating lid. Selected 2.5 mm wall, 0.2 mm lip clearance per side, 2.8 mm lid holes and 2.2 mm pilot bores. No screws, sealing gasket, ingress/flame rating or production shrinkage allowance. Open version places the lid beside the box for inspection. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to 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.

  • 150 x 100 x 50 mm project box - lid asidestlRotate in 3D
    150 x 100 x 50 mm project box - lid aside

    150 x 100 x 50 mm project box - lid aside, modeled from published dimensions. Overall 312 x 100 x 47.5 mm. Key dimensions: wall 2.5 mm; lip clearance each side 0.2 mm; lid screw clearance 2.8 mm; boss pilot 2.2 mm; display open true. Original dimensioned enclosure with four blind pilot bosses and a recessed locating lid. Selected 2.5 mm wall, 0.2 mm lip clearance per side, 2.8 mm lid holes and 2.2 mm pilot bores. No screws, sealing gasket, ingress/flame rating or production shrinkage allowance. Open version places the lid beside the box for inspection. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to 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.

  • 100 x 60 x 40 mm project box - lid asidestlRotate in 3D
    100 x 60 x 40 mm project box - lid aside

    100 x 60 x 40 mm project box - lid aside, modeled from published dimensions. Overall 212 x 60 x 37.5 mm. Key dimensions: wall 2.5 mm; lip clearance each side 0.2 mm; lid screw clearance 2.8 mm; boss pilot 2.2 mm; display open true. Original dimensioned enclosure with four blind pilot bosses and a recessed locating lid. Selected 2.5 mm wall, 0.2 mm lip clearance per side, 2.8 mm lid holes and 2.2 mm pilot bores. No screws, sealing gasket, ingress/flame rating or production shrinkage allowance. Open version places the lid beside the box for inspection. Watertight STL mesh in millimeters, ready to slice; printed performance is untested. Export to 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.

  • Three-pole DIN circuit breakerstepRotate in 3D
    Three-pole DIN circuit breaker

    Three-pole DIN circuit breaker, modeled from published dimensions. Overall 53.9 x 85 x 78.5 mm. Key dimensions: poles 3; module pitch 18 mm; body height along rail plane 85 mm; front depth 78.5 mm; rail width 35 mm. Rail profile uses the published 35 mm width, 27 mm web, 7.5 mm height, 1 mm sheet and 15 x 6.2 mm slots at 25 mm pitch. Bend radii are simplified as sharp CAD folds. Terminal and breaker contours are original nominal reconstructions using common 5.2 mm terminal and 18 mm breaker module classes. Selected fixed rail hooks have clearance; their elastic snap action is not simulated. Internal trip mechanisms, live wiring, ratings and safety certifications are omitted. 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.

  • Single-pole DIN circuit breakerstepRotate in 3D
    Single-pole DIN circuit breaker

    Single-pole DIN circuit breaker, modeled from published dimensions. Overall 17.9 x 85 x 78.5 mm. Key dimensions: poles 1; module pitch 18 mm; body height along rail plane 85 mm; front depth 78.5 mm; rail width 35 mm. Rail profile uses the published 35 mm width, 27 mm web, 7.5 mm height, 1 mm sheet and 15 x 6.2 mm slots at 25 mm pitch. Bend radii are simplified as sharp CAD folds. Terminal and breaker contours are original nominal reconstructions using common 5.2 mm terminal and 18 mm breaker module classes. Selected fixed rail hooks have clearance; their elastic snap action is not simulated. Internal trip mechanisms, live wiring, ratings and safety certifications are omitted. 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.

  • DIN rail with terminals and breakersstepRotate in 3D
    DIN rail with terminals and breakers

    DIN rail with terminals and breakers, modeled from published dimensions. Overall 250 x 85 x 78.5 mm. Key dimensions: rail length 250 mm; terminal blocks 6. Rail profile uses the published 35 mm width, 27 mm web, 7.5 mm height, 1 mm sheet and 15 x 6.2 mm slots at 25 mm pitch. Bend radii are simplified as sharp CAD folds. Terminal and breaker contours are original nominal reconstructions using common 5.2 mm terminal and 18 mm breaker module classes. Selected fixed rail hooks have clearance; their elastic snap action is not simulated. Internal trip mechanisms, live wiring, ratings and safety certifications are omitted. 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.

  • 0.96-inch OLED breakoutstepRotate in 3D
    0.96-inch OLED breakout

    0.96-inch OLED breakout, modeled from published dimensions. Overall 38.1 x 28.4 x 12 mm. Key dimensions: header pitch 2.5 mm. Original dimensional reconstruction of the Adafruit original-version 0.96-inch breakout format: 1.50 x 1.12 inch PCB, mounting centers at the 0.12/1.38 inch X and 0.12/1.00 inch Y datums shown in the fabrication print. 3.2 mm mounting drill, panel placement, small components and housing detail are nominal. No logos or electrical design copied. Display text is illustrative. 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-inch LCD panel with ribbonstepRotate in 3D
    7-inch LCD panel with ribbon

    7-inch LCD panel with ribbon, modeled from published dimensions. Overall 164.9 x 146.1 x 3.5 mm. Key dimensions: fpc pitch 0.5 mm. Bare 7-inch LCD panel, using Waveshare-hosted 164.9 x 100 x 3.5 mm panel envelope, 153.84 x 85.63 mm active area and ribbon dimensions. Active-area centering, simplified flex outline and contact arrangement are nominal; separate HDMI controller PCB and touch glass are not included. 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 x 2 character LCDstepRotate in 3D
    16 x 2 character LCD

    16 x 2 character LCD, modeled from published dimensions. Overall 80 x 36 x 19.5 mm. Key dimensions: header pitch 2.5 mm. PCB envelope, 75 x 31 mm mounting grid with 2.5 mm drills, 16-pin 2.54 mm grid and bezel/view area follow Newhaven NHD-0216K1Z drawing. Original reconstructed depth stack, nominal reverse-side controller and illustrative text. Supplied header increases the bare-module depth; electronics and display timing are not modeled. 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.

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