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.

10,000+ models2D drawings
Sort by:
Free
Detailed Frigate Ship Model with Realistic Dimensions
MARINE · SHIP MODEL

Detailed Frigate Ship Model with Realistic Dimensions

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Heavy Battle Frigate Model Inspired by USS Steam Runner
MARINE · HEAVY BATTLE FRIGATE

Heavy Battle Frigate Model Inspired by USS Steam Runner

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
USS Centurion Star Trek Frigate 3D Model
AEROSPACE · USS CENTURION

USS Centurion Star Trek Frigate 3D Model

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Ajour XTREME BOXX 4150 Workstation Enclosure Design
INDUSTRIAL DESIGN · BOXX 4150

Ajour XTREME BOXX 4150 Workstation Enclosure Design

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Sheet Metal Drawer Assembly with Electric Lock and Thermoformed Panels
MACHINE DESIGN · SHEET METAL

Sheet Metal Drawer Assembly with Electric Lock and Thermoformed Panels

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Ceramic Infrared Gas LPG Burner 100x9cm for Stoves
ENERGY AND POWER · CERAMIC INFRARED BURNER

Ceramic Infrared Gas LPG Burner 100x9cm for Stoves

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet

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
DV-75 Boiler Economiser with Feed Water Preheater Model
ENERGY AND POWER · DV-75 BOILER ECONOMISER

DV-75 Boiler Economiser with Feed Water Preheater Model

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Pulverized Cement Kiln Burner CFD Model
CHEMICAL · PULVERIZED CEMENT KILN BURNER

Pulverized Cement Kiln Burner CFD Model

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Honeywell RM 7800 Series Relay Module CAD Model
ELECTRICAL · HONEYWELL RM 7800

Honeywell RM 7800 Series Relay Module CAD Model

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Burner Assembly CAD Model for Engineering Design
MACHINE DESIGN · BURNER ASSEMBLY

Burner Assembly CAD Model for Engineering Design

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Industrial Cooker Burner CAD Model for Efficient Heating Solutions
INDUSTRIAL DESIGN · INDUSTRIAL COOKER BURNER

Industrial Cooker Burner CAD Model for Efficient Heating Solutions

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
FOCUS STONE 100 KW Pellet Burner - Efficient Pellet Heating Solution
ENERGY AND POWER · FOCUS STONE 100 KW

FOCUS STONE 100 KW Pellet Burner - Efficient Pellet Heating Solution

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
3D CAD Model of Brother Hobby Tornado T7 4215 260KV Motor for FPV Drones
ROBOTICS · BROTHER HOBBY TORNADO T7 4215 260KV

3D CAD Model of Brother Hobby Tornado T7 4215 260KV Motor for FPV Drones

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
3D CAD Model of Foxeer M10Q-120 GPS for FPV Drone Integration
ROBOTICS · FOXEER M10Q-120

3D CAD Model of Foxeer M10Q-120 GPS for FPV Drone Integration

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
3D CAD Model of GEPRC Maten 1.2G 5W VTX for FPV Drone Integration
ROBOTICS · GEPRC MATEN 1.2G 5W VTX

3D CAD Model of GEPRC Maten 1.2G 5W VTX for FPV Drone Integration

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
3D CAD Model of APD F3 80A ESC for FPV Drone Integration
ROBOTICS · APD F3 80A ESC

3D CAD Model of APD F3 80A ESC for FPV Drone Integration

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
3D Model of Foxeer FPV Camera for Drone Design and Visualization
ROBOTICS · FPV CAMERA

3D Model of Foxeer FPV Camera for Drone Design and Visualization

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
3D Model of Diatone Mamba F55 128K 4-in-1 ESC for FPV Drones
ROBOTICS · DIATONE MAMBA F55

3D Model of Diatone Mamba F55 128K 4-in-1 ESC for FPV Drones

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
Matek Systems F405-HDTE Flight Controller 3D Model for Precise Drone Assembly
ROBOTICS · MATEK SYSTEMS F405-HDTE

Matek Systems F405-HDTE Flight Controller 3D Model for Precise Drone Assembly

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
BrotherHobby Avenger V3 2812 900KV Brushless Motor 3D Model for Drone Design
ROBOTICS · BROTHERHOBBY AVENGER V3 2812 900KV

BrotherHobby Avenger V3 2812 900KV Brushless Motor 3D Model for Drone Design

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
3D Model of Folding 2-Blade Propeller for RC and FPV Drones
AVIATION · FOLDING PROPELLER

3D Model of Folding 2-Blade Propeller for RC and FPV Drones

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
Free
3D Model of TBS Crossfire Nano RX Pro Long Range FPV Receiver
ROBOTICS · TBS CROSSFIRE NANO RX PRO

3D Model of TBS Crossfire Nano RX Pro Long Range FPV Receiver

.STEP
Open STEP file viewerConvert STEP to STL
0 downloads
PreviewGet
prev...56789...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