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
Carbon Fiber Driveshaft for Maritime Applications
MARINE · CARBON FIBER

Carbon Fiber Driveshaft for Maritime Applications

.STEP
Free
Boat Outboard Engine Propeller CAD Model
MARINE · PROPELLER

Boat Outboard Engine Propeller CAD Model

.STEP
Free
200m Box Ship Model for Structural Analysis
MARINE · BOX SHIP 200M

200m Box Ship Model for Structural Analysis

.STEP
Free
Classic 1930s Launch Boat CAD Model with Detailed Hydrostatics
MARINE · LAUNCH BOAT

Classic 1930s Launch Boat CAD Model with Detailed Hydrostatics

.STEP

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Taftel Jibsheet Sailing Component CAD Model
MARINE · TAFTEL JIBSHEET

Taftel Jibsheet Sailing Component CAD Model

.STEP
Free
Rough Geometry Boat Design with Curved Hull Shapes
MARINE · BOAT DESIGN

Rough Geometry Boat Design with Curved Hull Shapes

.STEP
Free
J Style Kayak Carrier for Secure Transport
AUTOMOTIVE · KAYAK CARRIER

J Style Kayak Carrier for Secure Transport

.STEP
Free
Monopoly Battleship Token 3D Model for Board Game Accessories
MONOPOLY BATTLESHIP TOKEN

Monopoly Battleship Token 3D Model for Board Game Accessories

.STEP
Free
Foresti&Suardi 180 mm Industrial Component
INDUSTRIAL DESIGN · FORESTI&SUARDI

Foresti&Suardi 180 mm Industrial Component

.STEP
Free
LEGO Compatible Brick Part with iMates and Bricklink Numbering
INDUSTRIAL DESIGN · LEGO-COMPATIBLE

LEGO Compatible Brick Part with iMates and Bricklink Numbering

.STEP
Free
MC146E Electric and LNG Solid Oxide Fuel Cell (SOFC) Model
ENERGY AND POWER · MC146E

MC146E Electric and LNG Solid Oxide Fuel Cell (SOFC) Model

.STEP
Free
Generic Placeholder Mechanical Part for Engineering Applications
MACHINE DESIGN · MECHANICAL PART

Generic Placeholder Mechanical Part for Engineering Applications

.STEP
Free
Forward Section of a Ship with Shell and Membrane Elements
MARINE · SHIP FORWARD SECTION

Forward Section of a Ship with Shell and Membrane Elements

.STEP
Free
130 Meter Long Oil Tanker Shell Element Model
MARINE · OIL TANKER

130 Meter Long Oil Tanker Shell Element Model

.STEP
Free
High-Performance Motorsport Coil for Racing Applications
AUTOMOTIVE · MOTORSPORT COIL

High-Performance Motorsport Coil for Racing Applications

.STEP
Free
Fractal Terrain Water Surface Triangle Mesh for Engineering Simulations
INDUSTRIAL DESIGN · FRACTAL TERRAIN

Fractal Terrain Water Surface Triangle Mesh for Engineering Simulations

.STEP
Free
Stingray-Inspired Scooter Concept Design
AUTOMOTIVE · SCOOTER

Stingray-Inspired Scooter Concept Design

.STEP
Free
Francis Turbine Draft Tube and Casing Assembly
ENERGY AND POWER · FRANCIS TURBINE

Francis Turbine Draft Tube and Casing Assembly

.STEP
Free
Aeromotive 13301 Fuel Pressure Regulator Engine Bay Mockup
AUTOMOTIVE · FUEL PRESSURE REGULATOR

Aeromotive 13301 Fuel Pressure Regulator Engine Bay Mockup

.STEP
Free
Solo Flats Skiff Boat 3D Model for Marine Design
MARINE · SOLO FLATS SKIFF

Solo Flats Skiff Boat 3D Model for Marine Design

.STEP
Free
Optima Yellow Top Deep Cycle Battery 12V 75Ah
ENERGY AND POWER · OPTIMA YELLOW TOP

Optima Yellow Top Deep Cycle Battery 12V 75Ah

.STEP
Free
Scuba and Rebreather Equipment Parts Collection
MARINE · SCUBA

Scuba and Rebreather Equipment Parts Collection

.STEP