Engineering CAD Design Library

Browse quality-checked 3D CAD models for engineering, product design, prototyping and manufacturing. Preview models online and download files in STEP, STP, IGES, STL, OBJ, PLY, DWG, DXF and more.

All3D PrintingAerospaceArchitectureAutomotiveAviationChemicalConstructionElectricalEnergy And PowerIndustrial DesignJewelleryMachine designMarineMedicalMiscellaneousRobotics
10,000+ models2D drawings
Sort by:
Free
2510Fr1 1 | 3D CAD Engineering Model
MACHINE DESIGN · 2510FR1 1

2510Fr1 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Golight Stryker St Remote Control Lights For Vehicule 360 Led | 3D CAD Engineering Model
AUTOMOTIVE · GOLIGHT STRYKER ST

Golight Stryker St Remote Control Lights For Vehicule 360 Led | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Heater With Housing 1 | 3D CAD Engineering Model
INDUSTRIAL DESIGN · HEATER

Heater With Housing 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Portable Tri Led 1 | 3D CAD Engineering Model
3D PRINTING · PORTABLE TRI LED 1

Portable Tri Led 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview

Need a CAD file that is not in the library?

Share your requirement and Marathon OS will match you with a vetted CAD designer for production-ready CAD files, edits and manufacturing documentation.

Get it Built
500+Projects Done
24 hrResponse
15+CAD Tools
Free
Kls2 301 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · KLS2 301

Kls2 301 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Modular Sensor System 1 | 3D CAD Engineering Model
ROBOTICS · MODULAR SENSOR SYSTEM 1

Modular Sensor System 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview

Browse CAD models by file format

STEP CAD modelsSTL CAD modelsIGES CAD modelsOBJ 3D modelsPLY modelsDWG drawingsDXF drawings

Browse CAD models by category

Automotive CAD modelsAerospace CAD modelsRobotics CAD models3D printing CAD modelsArchitecture CAD modelsIndustrial design CAD modelsMedical CAD modelsElectrical CAD models
Free
Viparspectra P1000 1 | 3D CAD Engineering Model
3D PRINTING · VIPARSPECTRA P1000

Viparspectra P1000 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Itr20403 1 | 3D CAD Engineering Model
MACHINE DESIGN · ITR20403 1

Itr20403 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Itr9608 F 1 | 3D CAD Engineering Model
MACHINE DESIGN · ITR9608 F 1

Itr9608 F 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Wson 8 Ep 5X6 1 | 3D CAD Engineering Model
ELECTRICAL · WSON 8 EP 5X6 1

Wson 8 Ep 5X6 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Lga 12 2X2 1 | 3D CAD Engineering Model
ELECTRICAL · LGA 12 2X2 1

Lga 12 2X2 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Esp8266 22 | 3D CAD Engineering Model
ELECTRICAL · ESP8266

Esp8266 22 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Unitv Ai Camera M12 Lens 2 | 3D CAD Engineering Model
ROBOTICS · UNITV AI CAMERA M12 LENS 2

Unitv Ai Camera M12 Lens 2 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Cr2032 Holder 1 | 3D CAD Engineering Model
ELECTRICAL · CR2032

Cr2032 Holder 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Honyone Pb26 Rgb Button 1 | 3D CAD Engineering Model
ELECTRICAL · HONYONE PB26

Honyone Pb26 Rgb Button 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Taylor T21 1 | 3D CAD Engineering Model
MACHINE DESIGN · TAYLOR T21 1

Taylor T21 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Heat Sink Part 1 | 3D CAD Engineering Model
ELECTRICAL · HEAT SINK

Heat Sink Part 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Case For Dc 590 1 | 3D CAD Engineering Model
3D PRINTING · CASE FOR DC 590 1

Case For Dc 590 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Molex Connector 6 | 3D CAD Engineering Model
ELECTRICAL · MOLEX CONNECTOR 6

Molex Connector 6 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Visaton Keramik Widerstand 10W 1 | 3D CAD Engineering Model
ELECTRICAL · VISATON KERAMIK WIDERSTAND 10W 1

Visaton Keramik Widerstand 10W 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Multi Deck Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · MULTI DECK TERMINAL BLOCKS

Multi Deck Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Tagconnect Edge Connect Ecv3 06 Idc 1 | 3D CAD Engineering Model
ELECTRICAL · TAGCONNECT EDGE CONNECT ECV3 06 IDC 1

Tagconnect Edge Connect Ecv3 06 Idc 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
prev...228229230231232...next
Marathon OS logoThe CAD marketplace for modern teams
HomeAbout usWhy us?Contact us
Tools3D to 2D Drawing Pipeline3D CAD Viewer3D CAD File Converter
Library
Hire CAD Designers
Production-ready in 24 hrs
👤
→
2D Library
Ask a question
Privacy Policy|Terms of Service|Refund Policy|
© Marathon 2025 All Rights Reserved