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
F5D Style Racing Model Aircraft with 1200mm Wingspan
AVIATION · F5D RACING MODEL

F5D Style Racing Model Aircraft with 1200mm Wingspan

.STEP
Free
Detailed 3D Model of Small Electric Motor for Drone Applications
ROBOTICS · ELECTRIC MOTOR

Detailed 3D Model of Small Electric Motor for Drone Applications

.STEP
Free
Hobby Model Rocket CAD Design for Aeronautical Projects
AEROSPACE · MODEL ROCKET

Hobby Model Rocket CAD Design for Aeronautical Projects

.STEP
Free
mRo GPS u-blox 3D Model for Precision Navigation
ROBOTICS · MRO GPS U-BLOX

mRo GPS u-blox 3D Model for Precision Navigation

.STEP

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Ultra Light Motorized Gaming and Car Chair Design
AUTOMOTIVE · MOTORIZED CHAIR

Ultra Light Motorized Gaming and Car Chair Design

.STEP
Free
Garmin GSA 28 Autopilot Servo Component
AVIATION · GARMIN GSA 28

Garmin GSA 28 Autopilot Servo Component

.STEP
Free
Amphenol 11 GHz TNC Coaxial 17.5mm 4-Hole Flange Connector Model
ELECTRICAL · AMPHENOL

Amphenol 11 GHz TNC Coaxial 17.5mm 4-Hole Flange Connector Model

.STEP
Free
Cobham Dual Polarized Crossed Notched Antenna Model for IEEE RADAR Bands
AEROSPACE · COBHAM DUAL POLARIZED CROSSED NOTCHED ANTENNA

Cobham Dual Polarized Crossed Notched Antenna Model for IEEE RADAR Bands

.STEP
Free
Rosenberger TNC Coaxial Bulkhead Connector Model for High-Frequency Applications
ELECTRICAL · ROSENBERGER TNC

Rosenberger TNC Coaxial Bulkhead Connector Model for High-Frequency Applications

.STEP
Free
Aluminium Air Tank for Air Suspension with 1/4 Ports
AUTOMOTIVE · ALUMINIUM AIR TANK

Aluminium Air Tank for Air Suspension with 1/4 Ports

.STEP
Free
Pressure-Fed Liquid Fuel Engine with 30KN Thrust
AEROSPACE · PRESSURE-FED ENGINE

Pressure-Fed Liquid Fuel Engine with 30KN Thrust

.STEP
Free
PLA Grinding Mill 3D Printed Model
INDUSTRIAL DESIGN · PLA GRINDING MILL

PLA Grinding Mill 3D Printed Model

.STEP
Free
Cubesat Thermal and Structural Analysis Model
AEROSPACE · CUBESAT

Cubesat Thermal and Structural Analysis Model

.STEP
Free
100 Liter Capacity Drilling Machine Component
MACHINE DESIGN · DRILLING MACHINE

100 Liter Capacity Drilling Machine Component

.STEP
Free
E-flite EFLG330 Tricycle 25-46 Landing Gear Set CAD Model
AVIATION · EFLG330

E-flite EFLG330 Tricycle 25-46 Landing Gear Set CAD Model

.STEP
Free
Servo Ball Screw Slide for Drilling and Tapping Machines
MACHINE DESIGN · SERVO BALL SCREW

Servo Ball Screw Slide for Drilling and Tapping Machines

.STEP
Free
Industrial Mechanical Component CAD Model
MACHINE DESIGN · MECHANICAL COMPONENT

Industrial Mechanical Component CAD Model

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

Industrial Step Component CAD Model

.STEP
Free
LHB Coach Prototype Model for Rail Transport
AUTOMOTIVE · LHB COACH

LHB Coach Prototype Model for Rail Transport

.STEP
Free
1/3 Scale Tank Cap Model for RC Pitts Special S1S Aircraft
AVIATION · TANK CAP

1/3 Scale Tank Cap Model for RC Pitts Special S1S Aircraft

.STEP
Free
Cowling for 1/3 Scale Pitts Special S1S Model Kit
AVIATION · COWLING

Cowling for 1/3 Scale Pitts Special S1S Model Kit

.STEP
Free
Simple Logistic Delivery Drone Design
ROBOTICS · LOGISTIC DRONE

Simple Logistic Delivery Drone Design

.STEP