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.

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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.

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
Adjustable Carbon Fiber Plate Assembly with Motorized Rail System
INDUSTRIAL DESIGN · PROJECT GATEWAY 2

Adjustable Carbon Fiber Plate Assembly with Motorized Rail System

.STEP
Free
Lunar Gateway Logistic Module Design for Space Cargo Transport
AEROSPACE · SPACE CARGO MODULE AY 1 1

Lunar Gateway Logistic Module Design for Space Cargo Transport

.STEP
Free
Lunar Gateway Cargo Packing and Storage Solutions
AEROSPACE · LUNAR GATEWAY

Lunar Gateway Cargo Packing and Storage Solutions

.STEP
Free
Wall Bracket Mechanical Component | CAD Model
INDUSTRIAL DESIGN · WALL BRACKET 23

Wall Bracket Mechanical Component | CAD Model

.STEP

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Detailed Spur Gear CAD Model for Mechanical Design
MACHINE DESIGN · SPUR GEAR 331

Detailed Spur Gear CAD Model for Mechanical Design

.STEP
Free
Detailed Airplane Model for Engineering and Design
AVIATION · AIRPLANE MODEL 8

Detailed Airplane Model for Engineering and Design

.STEP
Free
Speculated B-21 Bomber Solid Assembly Model
AEROSPACE · B21 BOMBER

Speculated B-21 Bomber Solid Assembly Model

.STEP
Free
DS3218MG High Torque Servo Motor 20Kg
ROBOTICS · SERVO DS3218MG 2

DS3218MG High Torque Servo Motor 20Kg

.STEP
Free
Fixed Pitch 2.2 Meter Diameter Propeller with Aircraft Nose
AVIATION · PROPELLER

Fixed Pitch 2.2 Meter Diameter Propeller with Aircraft Nose

.STEP
Free
SU-31 RC Plane Model with 120cm Wingspan for CAD Use
AVIATION · SU 31 2

SU-31 RC Plane Model with 120cm Wingspan for CAD Use

.STEP
Free
Flying Taxi Bus Concept CAD Model
AVIATION · FLYING TAXI BUS CONCEPT 1

Flying Taxi Bus Concept CAD Model

.STEP
Free
High-Performance Blisk for Gas Turbine Compressors
AEROSPACE · BLISK COMPRESSOR 1

High-Performance Blisk for Gas Turbine Compressors

.STEP
Free
ISO-Grid Drink Coaster for Mug Placement
INDUSTRIAL DESIGN · ISO GRID DRINK COASTER 1

ISO-Grid Drink Coaster for Mug Placement

.STEP
Free
ISO Grid Drink Coaster Design for Educational Use
INDUSTRIAL DESIGN · ISO GRID DRINK COASTER C 1

ISO Grid Drink Coaster Design for Educational Use

.STEP
Free
Radial Engine Assembly CAD Model
AEROSPACE · RADIAL ENGINE 454

Radial Engine Assembly CAD Model

.STEP
Free
Roketsan MAM-L Smart Micro Munition - Precision Guided Bomb
AEROSPACE · ROKETSAN MAM L 1

Roketsan MAM-L Smart Micro Munition - Precision Guided Bomb

.STEP
Free
Open Electronics Enclosure with PCB and Connectors CAD Model
ELECTRICAL · ELECTRONICS ENCLOSURE 10

Open Electronics Enclosure with PCB and Connectors CAD Model

.STEP
Free
Connector Back Shell Design for Secure Cable Management
ELECTRICAL · BACK SHELL 1

Connector Back Shell Design for Secure Cable Management

.STEP
Free
Innovative Legacy Baby Project Inspired by French Design
INDUSTRIAL DESIGN · ALIBRE DESIGN BABY LEGACY

Innovative Legacy Baby Project Inspired by French Design

.STEP
Free
Yokosuka MXY-7 Ohka Rocket-Powered Attack Aircraft Model
AVIATION · YOKOSUKA MXY 7 OHKA 1

Yokosuka MXY-7 Ohka Rocket-Powered Attack Aircraft Model

.STEP
Free
13 Watt Power Over Ethernet (PoE) Transformer Model
ELECTRICAL · POWER OVER ETHERNET

13 Watt Power Over Ethernet (PoE) Transformer Model

.STEP
Free
10 Watt Power Over Ethernet (PoE) Transformer Model - SPOE10 Case
ELECTRICAL · POWER OVER ETHERNET

10 Watt Power Over Ethernet (PoE) Transformer Model - SPOE10 Case

.STEP