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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The axis engineers actually search on — pick a part type to filter the catalog.

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Build kits

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

All collections
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.

9 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.

10 partspairs verified
HARDWARE

Metric Fasteners & Threaded Hardware Pack

A reusable ISO/metric fastener library cluster with screws, nuts, washers, inserts, standoffs and bolt assemblies.

6 partspairs verified
3D PRINTING

3D Printer Motion & Extruder Upgrade Kit

A 3D-printer upgrade cluster combining hotend parts, filament handling, stepper drive and motion hardware.

14 partspairs verified
ELECTRONICS PROTOTYPING

Arduino / ESP32 Prototyping Kit

A maker electronics cluster with Arduino, ESP32, breadboard, shield, servo, battery holder and enclosure.

13 partspairs verified
ROBOTICS

Robotic Arm + Gripper Kit

A robotic manipulator cluster with 6-DOF arm, gripper, wrist, servo mounts, actuator and linear guide components.

12 partspairs verified
CNC MACHINING

CNC Workholding & Tooling Kit

A CNC machining cluster covering table, clamping, vise, chuck, collet holder, spindle and ball-screw motion.

14 partspairs verified
HVAC / DUCTING

HVAC Ventilation Duct Assembly Kit

A ventilation product cluster with grille, damper, duct adapter, fan, filter, flange and duct clamp.

8 partspairs verified
FLUID POWER

Hydraulic / Pneumatic Pump & Valve Manifold Kit

A fluid-power cluster combining pump, valves, pressure gauge, manifold block, pipe and coupling parts.

16 partspairs verified
MOBILE ROBOTICS

RC / Line-Follower Robot Chassis Kit

A small mobile-robot cluster with chassis, wheels, hubs, motors, motor mounts, controller, battery holder and damper.

16 partspairs verified
WORKSPACE ACCESSORIES

Desk Cable + Phone Stand Workstation Kit

A desk-organization product cluster combining cable routing, phone holders, headphone stands and laptop/iMac stands.

8 partspairs verified
CAMERA / IMAGING RIGS

Camera Gimbal & Mount Rig Kit

A camera-rig cluster with gimbal, camera modules, tripod, tilt head, GoPro mount and camera bracket parts.

8 partspairs verified
AUTOMOTIVE & MOBILITY

1:10 RC Car Drivetrain & Suspension Kit

A 1:10 RC Car Drivetrain & Suspension Kit cluster covering related CAD components for Automotive & Mobility.

5 partspairs verified
ROBOTICS & MECHATRONICS

Arduino / ESP32 Prototyping Kit; CNC Workholding & Tooling Kit

A Arduino / ESP32 Prototyping Kit; CNC Workholding & Tooling Kit cluster covering related CAD components for Robotics & Mechatronics.

1 partpairs verified
MOTORS & POWER TRANSMISSION

Arduino / ESP32 Prototyping Kit; RC / Line-Follower Robot Chassis Kit

A Arduino / ESP32 Prototyping Kit; RC / Line-Follower Robot Chassis Kit cluster covering related CAD components for Motors & Power Transmission.

1 partpairs verified
HYDRAULICS & PNEUMATICS

Belt & Roller Conveyor Design Kit

A Belt & Roller Conveyor Design Kit cluster covering related CAD components for Hydraulics & Pneumatics.

9 partspairs verified
PUMPS & FLUID SYSTEMS

Centrifugal Pump & Motor Skid Kit

A Centrifugal Pump & Motor Skid Kit cluster covering related CAD components for Pumps & Fluid Systems.

8 partspairs verified
GENERAL ENGINEERING

Honda C-Series Engine Parts Pack

A Honda C-Series Engine Parts Pack cluster covering related CAD components for General Engineering.

4 partspairs verified
VALVES & FLOW CONTROL

Hydraulic / Pneumatic Pump & Valve Manifold Kit; Industrial Valve & Actuation Pack

A Hydraulic / Pneumatic Pump & Valve Manifold Kit; Industrial Valve & Actuation Pack cluster covering related CAD components for Valves & Flow Control.

1 partpairs verified
ENCLOSURES & PANELS

IP65/IP67 Electrical Enclosure & Control Panel Pack

A IP65/IP67 Electrical Enclosure & Control Panel Pack cluster covering related CAD components for Enclosures & Panels.

9 partspairs verified
GENERAL ENGINEERING

Industrial Gearmotor & Drive Kit

A Industrial Gearmotor & Drive Kit cluster covering related CAD components for General Engineering.

9 partspairs verified
VALVES & FLOW CONTROL

Industrial Valve & Actuation Pack

A Industrial Valve & Actuation Pack cluster covering related CAD components for Valves & Flow Control.

9 partspairs verified
PUMPS & FLUID SYSTEMS

Peristaltic / Dosing Pump Prototyping Kit

A Peristaltic / Dosing Pump Prototyping Kit cluster covering related CAD components for Pumps & Fluid Systems.

9 partspairs verified
ROBOTICS & MECHATRONICS

Raspberry Pi Case & Display Kit

A Raspberry Pi Case & Display Kit cluster covering related CAD components for Robotics & Mechatronics.

6 partspairs verified
ENGINES & POWERTRAIN

Superquadro Engine Internals Kit

A Superquadro Engine Internals Kit cluster covering related CAD components for Engines & Powertrain.

4 partspairs verified
PUMPS & FLUID SYSTEMS

Vacuum Pump System Pack

A Vacuum Pump System Pack cluster covering related CAD components for Pumps & Fluid Systems.

9 partspairs verified
10,000+ models2D drawings
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Free
Mechanical Hand with Gripping Mechanism
ROBOTICS · MECHANICAL HAND

Mechanical Hand with Gripping Mechanism

.STEP
Free
Heavy-Duty Roller for Conveyor Systems with Large Diameter
INDUSTRIAL DESIGN · HEAVY-DUTY ROLLER

Heavy-Duty Roller for Conveyor Systems with Large Diameter

.STEP
Free
Universal Joint Coupling for Inclined Shaft Connections
MACHINE DESIGN · UNIVERSAL JOINT

Universal Joint Coupling for Inclined Shaft Connections

.STEP
Free
Adjustable Lamp for Workbench Lighting
INDUSTRIAL DESIGN · ADJUSTABLE LAMP

Adjustable Lamp for Workbench Lighting

.STEP

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Single Plate Clutch Assembly for Automotive Applications
AUTOMOTIVE · SINGLE PLATE CLUTCH

Single Plate Clutch Assembly for Automotive Applications

.STEP
Free
H4 Connector Housing for Electrical Connections
ELECTRICAL · H4 CONNECTOR

H4 Connector Housing for Electrical Connections

.STEP
Free
Bevel Gear CAD Model for Mechanical Design
MACHINE DESIGN · BEVEL GEAR

Bevel Gear CAD Model for Mechanical Design

.STEP
Free
Racing Car Seat for High-Performance Vehicles
AUTOMOTIVE · RACING CAR SEAT

Racing Car Seat for High-Performance Vehicles

.STEP
Free
High-Precision CAD Model Converted from STL with 0.1 Accuracy
MACHINE DESIGN · REVERSE ENGINEERING

High-Precision CAD Model Converted from STL with 0.1 Accuracy

.STEP
Free
Hand-Driven Forklift for Manual Load Handling
INDUSTRIAL DESIGN · HAND-DRIVEN FORKLIFT

Hand-Driven Forklift for Manual Load Handling

.STEP
Free
Nitrogen Pressure Regulator for Controlled Gas Release
CHEMICAL · NITROGENPRESSUREREGULATOR

Nitrogen Pressure Regulator for Controlled Gas Release

.STEP
Free
24s 33140 LiFePO4 Battery Pack with Protective Cover for Electric Vehicles
ENERGY AND POWER · 24S 33140 LIFEPO4 BATTERY PACK

24s 33140 LiFePO4 Battery Pack with Protective Cover for Electric Vehicles

.STEP
Free
Electric Motor Powered Belt Conveyor System
INDUSTRIAL DESIGN · ELECTRIC MOTOR

Electric Motor Powered Belt Conveyor System

.STEP
Free
Angular Movement Coupling for Power Transmission in Automotive Systems
AUTOMOTIVE · ANGULAR MOVEMENT COUPLING

Angular Movement Coupling for Power Transmission in Automotive Systems

.STEP
Free
Vehicle Wheel Rim CAD Model for Automotive Applications
AUTOMOTIVE · WHEEL RIM

Vehicle Wheel Rim CAD Model for Automotive Applications

.STEP
Free
Single Axle Jeep Style Trailer Fender - Durable Steel Protection
AUTOMOTIVE · SINGLE AXLE TRAILER FENDER

Single Axle Jeep Style Trailer Fender - Durable Steel Protection

.STEP
Free
Electric Scooter CAD Model for Engineering and Design
AUTOMOTIVE · CAD MODEL

Electric Scooter CAD Model for Engineering and Design

.STEP
Free
Yaskawa Servo Driver Industrial Component
ROBOTICS · YASKAWA

Yaskawa Servo Driver Industrial Component

.STEP
Free
Mechanical Part Component CAD Model
MACHINE DESIGN · MECHANICAL PART

Mechanical Part Component CAD Model

.STEP
Free
Formula One Front Wing Aerodynamic Component
AUTOMOTIVE · FORMULA ONE

Formula One Front Wing Aerodynamic Component

.STEP
Free
Bike Sprocket Chainring for Bicycle Drivetrain
AUTOMOTIVE · BIKE SPROCKET

Bike Sprocket Chainring for Bicycle Drivetrain

.STEP
Free
Customizable Industrial Component
INDUSTRIAL DESIGN · INDUSTRIAL COMPONENT

Customizable Industrial Component

.STEP