Free Electronics 3D Models
Electronic components, enclosures and boards. Every file here is public domain: open it in your browser, then download it and use it for anything.
3342 3D parts · STEP, STL, SketchUp, 3MF, OBJ, glTF, IFC, Rhino and more · public domain
248 3D parts in Electronics & PCB · Clear all
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USB-A receptacleUSB-A receptacle, modeled from published dimensions. Overall 14 x 14.5 x 10 mm. Key dimensions: contact pitch 2.5 mm. Original reconstructed connector model with explicitly stated nominal layout dimensions. USB-C mouth and shell datums follow the Same Sky UJ31-CH-G1 drawing; other connector envelopes are generic library choices. Contacts, shell tabs and solder tails are simplified. This is not a manufacturer-approved PCB footprint or a connector interoperability certification. 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.
177 KBDetails & downloadstepRotate in 3D
RJ45 modular jackRJ45 modular jack, modeled from published dimensions. Overall 16 x 21 x 16.5 mm. Key dimensions: contact pitch 1 mm. Original reconstructed connector model with explicitly stated nominal layout dimensions. USB-C mouth and shell datums follow the Same Sky UJ31-CH-G1 drawing; other connector envelopes are generic library choices. Contacts, shell tabs and solder tails are simplified. This is not a manufacturer-approved PCB footprint or a connector interoperability certification. 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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HDMI Type-A receptacleHDMI Type-A receptacle, modeled from published dimensions. Overall 15 x 11 x 8.6 mm. Key dimensions: contacts 19; contact pitch 0.5 mm. Original reconstructed connector model with explicitly stated nominal layout dimensions. USB-C mouth and shell datums follow the Same Sky UJ31-CH-G1 drawing; other connector envelopes are generic library choices. Contacts, shell tabs and solder tails are simplified. This is not a manufacturer-approved PCB footprint or a connector interoperability certification. 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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5.5 / 2.1 mm DC barrel jack5.5 / 2.1 mm DC barrel jack, modeled from published dimensions. Overall 9 x 14.4 x 14 mm. Key dimensions: plug outer diameter 5.5 mm; center pin 2.1 mm. Original reconstructed connector model with explicitly stated nominal layout dimensions. USB-C mouth and shell datums follow the Same Sky UJ31-CH-G1 drawing; other connector envelopes are generic library choices. Contacts, shell tabs and solder tails are simplified. This is not a manufacturer-approved PCB footprint or a connector interoperability certification. 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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LiPo pack with XT60 and JST-XH balance leadLiPo pack with XT60 and JST-XH balance lead, modeled from published dimensions. Overall 105 x 76.5 x 25 mm. Key dimensions: xt60 contact pitch 7.2 mm; xt60 contact bore 3.5 mm; jst xh pitch 2.5 mm; balance circuits 3. Original nominal 105 x 35 x 25 mm pack layout. XT60-family polarized socket and JST-XH 3-circuit balance connector are reconstructed; JST source establishes 2.5 mm pitch. Undimensioned housings, wire gauges and lead lengths are selected library values, not exact manufacturer tooling. No capacity, chemistry performance, pinout certification or electrical design is provided. 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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2-cell 18650 holder2-cell 18650 holder, modeled from published dimensions. Overall 42 x 76 x 16 mm. Key dimensions: cells 2; cell diameter clearance 19 mm; contact spacing nominal 67.6 mm. Cell envelope uses Molicel P28A maximum diameter 18.6 mm and height 65.2 mm. Terminal shapes and wrap are original simplified details; no manufacturer markings are copied. Holder and pack geometry are original nominal library designs. Series tabs illustrate alternating cell orientation. Protection, electrical insulation stack, wiring and enclosure integration are not an engineered battery system; this model makes no capacity or electrical performance claim. 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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1-cell 18650 holder1-cell 18650 holder, modeled from published dimensions. Overall 22 x 76 x 16 mm. Key dimensions: cells 1; cell diameter clearance 19 mm; contact spacing nominal 67.6 mm. Cell envelope uses Molicel P28A maximum diameter 18.6 mm and height 65.2 mm. Terminal shapes and wrap are original simplified details; no manufacturer markings are copied. Holder and pack geometry are original nominal library designs. Series tabs illustrate alternating cell orientation. Protection, electrical insulation stack, wiring and enclosure integration are not an engineered battery system; this model makes no capacity or electrical performance claim. 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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18650 cell, maximum envelope18650 cell, maximum envelope, modeled from published dimensions. Overall 18.6 x 18.6 x 65.2 mm. Cell envelope uses Molicel P28A maximum diameter 18.6 mm and height 65.2 mm. Terminal shapes and wrap are original simplified details; no manufacturer markings are copied. Holder and pack geometry are original nominal library designs. Series tabs illustrate alternating cell orientation. Protection, electrical insulation stack, wiring and enclosure integration are not an engineered battery system; this model makes no capacity or electrical performance claim. 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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4S 18650 pack layout4S 18650 pack layout, modeled from published dimensions. Overall 80 x 21.5 x 65.6 mm. Key dimensions: series cells 4; cell pitch 19.5 mm. Cell envelope uses Molicel P28A maximum diameter 18.6 mm and height 65.2 mm. Terminal shapes and wrap are original simplified details; no manufacturer markings are copied. Holder and pack geometry are original nominal library designs. Series tabs illustrate alternating cell orientation. Protection, electrical insulation stack, wiring and enclosure integration are not an engineered battery system; this model makes no capacity or electrical performance claim. 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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2S 18650 pack layout2S 18650 pack layout, modeled from published dimensions. Overall 41 x 21.5 x 65.4 mm. Key dimensions: series cells 2; cell pitch 19.5 mm. Cell envelope uses Molicel P28A maximum diameter 18.6 mm and height 65.2 mm. Terminal shapes and wrap are original simplified details; no manufacturer markings are copied. Holder and pack geometry are original nominal library designs. Series tabs illustrate alternating cell orientation. Protection, electrical insulation stack, wiring and enclosure integration are not an engineered battery system; this model makes no capacity or electrical performance claim. 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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830-point solderless breadboard830-point solderless breadboard, modeled from published dimensions. Overall 165.1 x 54.6 x 8.5 mm. Key dimensions: hole pitch 2.5 mm; terminal points 630; power points 200; socket 1.1 mm. 830-point arrangement and nominal 165.1 x 54.6 x 8.5 mm body follow BusBoard BB830 reference. Original housing and square socket reconstruction, 2.54 mm grid. Tabs, printed numbering, hidden contact bars and contact springs are omitted. No electrical rating is transferred to this model. 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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ESP8266 D1 mini V3 layoutESP8266 D1 mini V3 layout, modeled from published dimensions. Overall 25.6 x 35.2 x 13.4 mm. Key dimensions: header pitch 2.5 mm; header first y 6.9 mm; pins 16. Original reconstructed layout. ESP32 board envelope and header grid follow Espressif drawing; RF module is 18 x 25.5 x 3.1 mm. Antenna keepout is not exported as a physical part. Connector and small component detail is representative. D1 mini board envelope follows WEMOS 34.2 x 25.6 mm specification. Its 22.86 mm header-row spacing, centered 2.54 mm grid and component heights are explicit nominal library choices, not dimensioned in that source. No electrical/RF simulation or guaranteed connector fit. 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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ESP32 DevKitC V4 layoutESP32 DevKitC V4 layout, modeled from published dimensions. Overall 27.9 x 49.5 x 13.7 mm. Key dimensions: header pitch 2.5 mm; header first y 1.3 mm; pins 38. Original reconstructed layout. ESP32 board envelope and header grid follow Espressif drawing; RF module is 18 x 25.5 x 3.1 mm. Antenna keepout is not exported as a physical part. Connector and small component detail is representative. D1 mini board envelope follows WEMOS 34.2 x 25.6 mm specification. Its 22.86 mm header-row spacing, centered 2.54 mm grid and component heights are explicit nominal library choices, not dimensioned in that source. No electrical/RF simulation or guaranteed connector fit. 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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Raspberry Pi 5 Model B layoutRaspberry Pi 5 Model B layout, modeled from published dimensions. Overall 89.5 x 57.3 x 20.6 mm. Key dimensions: corner radius 3 mm; gpio pitch 2.5 mm; gpio row spacing 2.5 mm. PCB outline, four mounting holes, GPIO grid and dimensioned port centerlines follow the official mechanical drawing. Geometry is an original reconstruction; connector depths, small component footprints, SD housing, shell gauges and PCB thickness are nominal where undimensioned. No copper routing or electrical behavior is supplied. The Pi 5 reference explicitly describes approximate dimensions for reference, not production. Check a physical board for final enclosure clearances; modeled connector internal details are visual representations. 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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Raspberry Pi 4 Model B layoutRaspberry Pi 4 Model B layout, modeled from published dimensions. Overall 88 x 58.5 x 20.6 mm. Key dimensions: corner radius 3 mm; gpio pitch 2.5 mm; gpio row spacing 2.5 mm. PCB outline, four mounting holes, GPIO grid and dimensioned port centerlines follow the official mechanical drawing. Geometry is an original reconstruction; connector depths, small component footprints, SD housing, shell gauges and PCB thickness are nominal where undimensioned. No copper routing or electrical behavior is supplied. The Pi 5 reference explicitly describes approximate dimensions for reference, not production. Check a physical board for final enclosure clearances; modeled connector internal details are visual representations. 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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TT-style DG01D dual-output gear motorTT-style DG01D dual-output gear motor, modeled from published dimensions. Overall 37.6 x 64.2 x 22.5 mm. Key dimensions: body length 64.2 mm; gearbox thickness 18.8 mm; gearbox height 22.5 mm; shaft span 37.6 mm; output axis from nose 11.2 mm; shaft major diameter 5.4 mm; shaft across flats 3.6 mm; shaft bore 1.9 mm; mount hole diameter 3 mm; mount hole pitch 17.5 mm; mount hole from nose 31.8 mm; motor retainer width 22.5 mm. Installation datums follow the DAGU DG01D-A130 manufacturer drawing hosted by SparkFun. This specific TT-style design is not dimensionally interchangeable with every yellow TT gear motor. Undimensioned shell contour, seam, internal motor seat and metal retaining band are reconstructed. Auxiliary nose lug and electrical terminals are omitted; the 64.2 mm length refers to the dimensioned body datum. Internal gears and performance 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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N20 9 mm gearbox with rear shaftN20 9 mm gearbox with rear shaft, modeled from published dimensions. Overall 12 x 10 x 40.2 mm. Key dimensions: gearbox width 12 mm; gearbox height 10 mm; gearbox length 9 mm; motor can length 15 mm; front face to terminal end 25.6 mm; output shaft diameter 3 mm; output D dimension 2.5 mm; output projection 10 mm; output boss diameter 4 mm; output boss projection 0.7 mm; mount pitch 9 mm; mount thread M1.6; rear shaft diameter 1 mm; rear shaft projection 5 mm. Nominal dimensions follow Pololu precious-metal-brush mechanical drawings (datasheet page 8). The long 12.5 mm gearbox envelope corresponds to the 1000:1 option. The shaft flat spans Z=1 to 10 mm; front mounting holes are nominal M1.6 envelopes. Visible spur gear stacks, tooth counts and axles are representative, not a working reduction train. Case seams, post positions and brush/terminal details are reconstructed. No ratio, torque, speed, tolerance or encoder functionality is simulated. 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.
1.8 MBDetails & downloadstepRotate in 3D
N20 9 mm gearboxN20 9 mm gearbox, modeled from published dimensions. Overall 12 x 10 x 35.6 mm. Key dimensions: gearbox width 12 mm; gearbox height 10 mm; gearbox length 9 mm; motor can length 15 mm; front face to terminal end 25.6 mm; output shaft diameter 3 mm; output D dimension 2.5 mm; output projection 10 mm; output boss diameter 4 mm; output boss projection 0.7 mm; mount pitch 9 mm; mount thread M1.6; rear shaft diameter 0 mm; rear shaft projection 0 mm. Nominal dimensions follow Pololu precious-metal-brush mechanical drawings (datasheet page 8). The long 12.5 mm gearbox envelope corresponds to the 1000:1 option. The shaft flat spans Z=1 to 10 mm; front mounting holes are nominal M1.6 envelopes. Visible spur gear stacks, tooth counts and axles are representative, not a working reduction train. Case seams, post positions and brush/terminal details are reconstructed. No ratio, torque, speed, tolerance or encoder functionality is simulated. 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.
1.8 MBDetails & downloadstepRotate in 3D
N20 12.5 mm gearbox with rear shaftN20 12.5 mm gearbox with rear shaft, modeled from published dimensions. Overall 12 x 10 x 43.7 mm. Key dimensions: gearbox width 12 mm; gearbox height 10 mm; gearbox length 12.5 mm; motor can length 15 mm; front face to terminal end 29.1 mm; output shaft diameter 3 mm; output D dimension 2.5 mm; output projection 10 mm; output boss diameter 4 mm; output boss projection 0.7 mm; mount pitch 9 mm; mount thread M1.6; rear shaft diameter 1 mm; rear shaft projection 5 mm. Nominal dimensions follow Pololu precious-metal-brush mechanical drawings (datasheet page 8). The long 12.5 mm gearbox envelope corresponds to the 1000:1 option. The shaft flat spans Z=1 to 10 mm; front mounting holes are nominal M1.6 envelopes. Visible spur gear stacks, tooth counts and axles are representative, not a working reduction train. Case seams, post positions and brush/terminal details are reconstructed. No ratio, torque, speed, tolerance or encoder functionality is simulated. 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.
1.8 MBDetails & downloadstepRotate in 3D
HS-311 standard servo with original hornHS-311 standard servo with original horn, modeled from published dimensions. Overall 58.5 x 20 x 42.8 mm. Key dimensions: case length 40 mm; case width 20 mm; case height 36.5 mm; tab span 53 mm; tab width 20 mm; tab under height 26.5 mm; tab thickness 2.5 mm; mount slot diameter 4.5 mm; output axis x 10 mm; output teeth 24; output major diameter 6 mm; output tip height 41.6 mm; horn true. Body, tab height and mounting pitch follow the manufacturer drawing. Case contours and spline tooth form are reconstructed. Flexible leads, electrical internals and motion are omitted. Taps are nominal cylindrical envelopes. Original single-arm horn has 1.7 mm linkage holes at 3 mm pitch; it is not a vendor horn drawing. HS-311 uses the 2025 MULTIPLEX/Hitec drawing: 53 mm tab span, 47.8 x 10.2 mm slot pattern and 41.6 mm height to the output tip. The nominal 24-tooth output is 6 mm diameter; tooth profile 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.
805 KBDetails & downloadstepRotate in 3D
HS-311 standard servoHS-311 standard servo, modeled from published dimensions. Overall 53 x 20 x 41.6 mm. Key dimensions: case length 40 mm; case width 20 mm; case height 36.5 mm; tab span 53 mm; tab width 20 mm; tab under height 26.5 mm; tab thickness 2.5 mm; mount slot diameter 4.5 mm; output axis x 10 mm; output teeth 24; output major diameter 6 mm; output tip height 41.6 mm; horn false. Body, tab height and mounting pitch follow the manufacturer drawing. Case contours and spline tooth form are reconstructed. Flexible leads, electrical internals and motion are omitted. Taps are nominal cylindrical envelopes. Bare output shaft; no horn fitted. HS-311 uses the 2025 MULTIPLEX/Hitec drawing: 53 mm tab span, 47.8 x 10.2 mm slot pattern and 41.6 mm height to the output tip. The nominal 24-tooth output is 6 mm diameter; tooth profile 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.
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FS90-C 9 g micro servo with original hornFS90-C 9 g micro servo with original horn, modeled from published dimensions. Overall 36.7 x 12.5 x 31.4 mm. Key dimensions: case length 23.2 mm; case width 12.5 mm; case height 23 mm; tab span 32.6 mm; tab width 11.8 mm; tab under height 16.4 mm; tab thickness 2.4 mm; mount slot diameter 4 mm; output axis x 5.4 mm; output teeth 20; output major diameter 4.8 mm; output tip height 30.5 mm; horn true. Body, tab height and mounting pitch follow the manufacturer drawing. Case contours and spline tooth form are reconstructed. Flexible leads, electrical internals and motion are omitted. Taps are nominal cylindrical envelopes. Original single-arm horn has 1.7 mm linkage holes at 3 mm pitch; it is not a vendor horn drawing. FS90 output center X=5.35 mm is inferred from the case geometry; tab slot diameter 4 mm and spline extension 3.2 mm are selected from the undimensioned drawing. Verify those interfaces against the physical servo before drilling or making a mating spline. 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.
717 KBDetails & downloadstepRotate in 3D
FS90-C 9 g micro servoFS90-C 9 g micro servo, modeled from published dimensions. Overall 32.6 x 12.5 x 30.5 mm. Key dimensions: case length 23.2 mm; case width 12.5 mm; case height 23 mm; tab span 32.6 mm; tab width 11.8 mm; tab under height 16.4 mm; tab thickness 2.4 mm; mount slot diameter 4 mm; output axis x 5.4 mm; output teeth 20; output major diameter 4.8 mm; output tip height 30.5 mm; horn false. Body, tab height and mounting pitch follow the manufacturer drawing. Case contours and spline tooth form are reconstructed. Flexible leads, electrical internals and motion are omitted. Taps are nominal cylindrical envelopes. Bare output shaft; no horn fitted. FS90 output center X=5.35 mm is inferred from the case geometry; tab slot diameter 4 mm and spline extension 3.2 mm are selected from the undimensioned drawing. Verify those interfaces against the physical servo before drilling or making a mating spline. 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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Screw-mounted under-desk hookScrew-mounted under-desk hook, modeled from published dimensions. Overall 60 x 44 x 63 mm. Key dimensions: plate 60 x 44 x 7; mount hole diameter 4.5 mm; mount hole spacing 32 mm; hook clear width 36 mm; hook depth 24 mm. Original geometry modeled from scratch in tools/cad_print_designs.py. Closed solid meshes checked digitally. Physical printing, strength and printer-specific tolerances have not been tested. Mounting screws are not included. Countersunk holes sit to either side of the hook, with a clear vertical path for a screwdriver. No load rating has been established. Print on a side face for a broad contact area. 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.
116 KBDetails & download
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