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.

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Build kits

Curated systems with verified mating parts — download the whole assembly at once.

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CONSUMER ELECTRONICS

iPhone Accessory & Case Design Kit

A practical iPhone accessory cluster for designing cases, charging stands, holders and fit-checking around real phone geometry.

6 partspairs verified
DRONES / UAV

250 mm FPV Drone Build Kit

A complete FPV quad build cluster covering frame, propulsion, camera, control electronics, battery housing and mounting hardware.

7 partspairs verified
MOTION CONTROL

NEMA 17 Motion / Linear Actuator Kit

A motion-control cluster around a NEMA 17 stepper, bracket, coupler, GT2 belt, pulley, bearing and driver.

5 partspairs verified
10,000+ models2D drawings
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Free
Professional 3D Model Rendering Service
INDUSTRIAL DESIGN · 3D MODEL RENDERING

Professional 3D Model Rendering Service

.STEP
Free
PCB Enclosure Design with CNC Milling Considerations in SOLIDWORKS
ELECTRICAL · PCB ENCLOSURE

PCB Enclosure Design with CNC Milling Considerations in SOLIDWORKS

.STEP
Free
Business Jet CAD Model for Aerospace Design
AEROSPACE · BUSINESS JET

Business Jet CAD Model for Aerospace Design

.STEP
Free
MuRata 10.7 MHz SFECV CERAFIL Ceramic Filter with Multiple Bandwidth Options
ELECTRICAL · MURATA 10.7 MHZ SFECV CERAFIL

MuRata 10.7 MHz SFECV CERAFIL Ceramic Filter with Multiple Bandwidth Options

.STEP

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MuRata 10.7 MHz CDSCB Frequency Modulation Discriminator Model
ELECTRICAL · MURATA 10.7 MHZ CDSCB

MuRata 10.7 MHz CDSCB Frequency Modulation Discriminator Model

.STEP
Free
Box Wing Internal Structure with Precision Ribs and Spars
AEROSPACE · BOX WING

Box Wing Internal Structure with Precision Ribs and Spars

.STEP
Free
3D Model of Rocket Boosted Fixed Wing UAV with Detailed Components
AEROSPACE · ROCKET BOOSTED UAV

3D Model of Rocket Boosted Fixed Wing UAV with Detailed Components

.STEP
Free
High-Pressure Compressor Blade for Industrial Applications
AEROSPACE · HIGH-PRESSURE COMPRESSOR BLADE

High-Pressure Compressor Blade for Industrial Applications

.STEP
Free
MuRata 455 KHz CFWKA CERAFIL Ceramic Filter Model
ELECTRICAL · MURATA 455 KHZ CFWKA CERAFIL

MuRata 455 KHz CFWKA CERAFIL Ceramic Filter Model

.STEP
Free
MuRata 455 KHz CFUKG CERAFIL Ceramic Filter Model for RF Applications
ELECTRICAL · MURATA 455 KHZ CFUKG CERAFIL

MuRata 455 KHz CFUKG CERAFIL Ceramic Filter Model for RF Applications

.STEP
Free
MuRata 455 KHz SFPKA CERAFIL Ceramic Filter Model for RF Applications
ELECTRICAL · MURATA 455 KHZ SFPKA

MuRata 455 KHz SFPKA CERAFIL Ceramic Filter Model for RF Applications

.STEP
Free
Electronic Speed Controller for Industrial and Agricultural Spraying Drones
ROBOTICS · ELECTRONIC SPEED CONTROLLER

Electronic Speed Controller for Industrial and Agricultural Spraying Drones

.STEP
Free
Compact 86x86x26 Enclosure for LCD1602 Display
ELECTRICAL · ENCLOSURE

Compact 86x86x26 Enclosure for LCD1602 Display

.STEP
Free
Maxtena M8HCT-A-SMA Antenna CAD Model
ELECTRICAL · MAXTENA M8HCT-A-SMA

Maxtena M8HCT-A-SMA Antenna CAD Model

.STEP
Free
Initial Model Airplane Design with Active Control Surfaces
AVIATION · MODEL AIRPLANE

Initial Model Airplane Design with Active Control Surfaces

.STEP
Free
Precision Mechanical Component for Industrial Applications
MACHINE DESIGN · MECHANICAL COMPONENT

Precision Mechanical Component for Industrial Applications

.STEP
Free
Indian Fighter Aircraft 3D Model
AEROSPACE · FIGHTER AIRCRAFT

Indian Fighter Aircraft 3D Model

.STEP
Free
Beginner-Friendly 3D Printable CAD Model
3D PRINTING · 3D PRINTABLE

Beginner-Friendly 3D Printable CAD Model

.STEP
Free
Coaxial Swirl Injector Inspired by Copenhagen Suborbitals Design
AEROSPACE · COAXIAL SWIRL INJECTOR

Coaxial Swirl Injector Inspired by Copenhagen Suborbitals Design

.STEP
Free
18 Inch BT60 Rocketry Tube for Aerospace Applications
AEROSPACE · BT60

18 Inch BT60 Rocketry Tube for Aerospace Applications

.STEP
Free
Industrial Component with Estimated Dimensions and Weights for Design Use
MACHINE DESIGN · INDUSTRIAL COMPONENT

Industrial Component with Estimated Dimensions and Weights for Design Use

.STEP
Free
Rocketry Design Component with Approximate Dimensions and Mass
AEROSPACE · ROCKETRY

Rocketry Design Component with Approximate Dimensions and Mass

.STEP