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
Cessna 172 Style Small Aircraft CAD Model with Landing Gear and Control Surfaces
AVIATION · CESSNA 172

Cessna 172 Style Small Aircraft CAD Model with Landing Gear and Control Surfaces

.STEP
Free
Micro Servo 9g SG90 for Aeromodelling and UAV Drones
AVIATION · MICRO SERVO 9G SG90

Micro Servo 9g SG90 for Aeromodelling and UAV Drones

.STEP
Free
X27.168 Stepper Motor for Automotive and Simulation Applications
AUTOMOTIVE · X27.168

X27.168 Stepper Motor for Automotive and Simulation Applications

.STEP
Free
Shockflyer Model Constructed from 3mm Foam Materials
AVIATION · SHOCKFLYER

Shockflyer Model Constructed from 3mm Foam Materials

.STEP

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Vertical Water Separator Filter Vessel for Industrial Applications
INDUSTRIAL DESIGN · VERTICAL WATER SEPARATOR

Vertical Water Separator Filter Vessel for Industrial Applications

.STEP
Free
Turret Assembly CAD Model for Industrial Applications
MACHINE DESIGN · TURRET ASSEMBLY

Turret Assembly CAD Model for Industrial Applications

.STEP
Free
26-Inch Horizontal Fuel Water Separator for Industrial Applications
INDUSTRIAL DESIGN · FUEL WATER SEPARATOR

26-Inch Horizontal Fuel Water Separator for Industrial Applications

.STEP
Free
3D CAD Model Designed with Inventor and Rendered in Keyshot
INDUSTRIAL DESIGN · INVENTOR

3D CAD Model Designed with Inventor and Rendered in Keyshot

.STEP
Free
3D Printed Thin Skin Reinforcement Mesh Model
3D PRINTING · THIN SKIN REINFORCEMENT

3D Printed Thin Skin Reinforcement Mesh Model

.STEP
Free
Wombat 2-Cycle Model Engine Designed by Edgar T. Westbury
MACHINE DESIGN · WOMBAT 2-CYCLE

Wombat 2-Cycle Model Engine Designed by Edgar T. Westbury

.STEP
Free
Wooden Hand Glider CAD Model for Educational Use
AVIATION · WOODEN HAND GLIDER

Wooden Hand Glider CAD Model for Educational Use

.STEP
Free
Drone Storage Box with Sliding Acrylic Panel and Magnetic Closure
ROBOTICS · DRONE STORAGE BOX

Drone Storage Box with Sliding Acrylic Panel and Magnetic Closure

.STEP
Free
Engineering Component Work in Progress
MACHINE DESIGN · ENGINEERING COMPONENT

Engineering Component Work in Progress

.STEP
Free
Metric Fixed Anchor Nuts M4 to M6 - Industrial Fasteners
INDUSTRIAL DESIGN · METRIC FIXED ANCHOR NUTS

Metric Fixed Anchor Nuts M4 to M6 - Industrial Fasteners

.STEP
Free
Industrial Step Component CAD Model
MACHINE DESIGN · INDUSTRIAL STEP

Industrial Step Component CAD Model

.STEP
Free
Precision Mechanical Component CAD Model
MACHINE DESIGN · PRECISION COMPONENT

Precision Mechanical Component CAD Model

.STEP
Free
I-PEX MHF Micro-Coax RF Receptacle Normally Closed Switch Model
ELECTRICAL · I-PEX MHF

I-PEX MHF Micro-Coax RF Receptacle Normally Closed Switch Model

.STEP
Free
I-PEX MHF Micro-Coax RF Plug for SW23 Normally Closed Switch
ELECTRICAL · I-PEX MHF MICRO-COAX RF PLUG

I-PEX MHF Micro-Coax RF Plug for SW23 Normally Closed Switch

.STEP
Free
I-PEX MHF 7 Micro-Coax 45 GHz RF Receptacle for 5G Applications
ELECTRICAL · I-PEX MHF 7

I-PEX MHF 7 Micro-Coax 45 GHz RF Receptacle for 5G Applications

.STEP
Free
Airbus A330 Aircraft 3D Model
AEROSPACE · AIRBUS A330

Airbus A330 Aircraft 3D Model

.STEP
Free
Brushless Motor for Electric Multi-Rotor UAVs
AVIATION · BRUSHLESS MOTOR

Brushless Motor for Electric Multi-Rotor UAVs

.STEP
Free
BrotherHobby Tornado T5 Pro Racing Drone Motor
ROBOTICS · BROTHERHOBBY TORNADO T5 PRO

BrotherHobby Tornado T5 Pro Racing Drone Motor

.STEP