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
Pixhawk 2.1 Flight Controller for Advanced UAV Applications
ROBOTICS · PIXHAWK 2.1

Pixhawk 2.1 Flight Controller for Advanced UAV Applications

.STEP
Free
Cessna Grand Caravan Aircraft 3D Model
AVIATION · CESSNA GRAND CARAVAN

Cessna Grand Caravan Aircraft 3D Model

.STEP
Free
Abracon Ultra-Stable Voltage Controlled Oven Controlled Crystal Oscillator (VCOCXO)
ELECTRICAL · VOLTAGE CONTROLLED OSCILLATOR

Abracon Ultra-Stable Voltage Controlled Oven Controlled Crystal Oscillator (VCOCXO)

.STEP
Free
Compact 3D Printer Hotend Design
3D PRINTING · HOTEND

Compact 3D Printer Hotend Design

.STEP

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Free
High Barrel for 9x19mm Bullet Destruction
MACHINE DESIGN · HIGH BARREL

High Barrel for 9x19mm Bullet Destruction

.STEP
Free
Sounding Hobby Rocket Model with Calibration and Simulation
AEROSPACE · SOUNDING ROCKET

Sounding Hobby Rocket Model with Calibration and Simulation

.STEP
Free
Professional Drone Design Model
ROBOTICS · DRONE

Professional Drone Design Model

.STEP
Free
Industrial Logo Design for Engineering Applications
INDUSTRIAL DESIGN · LOGO DESIGN

Industrial Logo Design for Engineering Applications

.STEP
Free
Industrial Logo Design for Engineering Applications
INDUSTRIAL DESIGN · LOGO DESIGN

Industrial Logo Design for Engineering Applications

.STEP
Free
Payload Simulation Dummy for Cinelifter Drone with Threaded Inserts
AVIATION · PAYLOAD SIMULATION DUMMY

Payload Simulation Dummy for Cinelifter Drone with Threaded Inserts

.STEP
Free
Turbine Nozzle Shroud for Hot Gas Flow Guidance
ENERGY AND POWER · TURBINE NOZZLE SHROUD

Turbine Nozzle Shroud for Hot Gas Flow Guidance

.STEP
Free
Complete Engine Combustion Chamber Assembly with Air Cooling Design
AEROSPACE · ENGINE COMBUSTION CHAMBER

Complete Engine Combustion Chamber Assembly with Air Cooling Design

.STEP
Free
Neugart PLPE090-020-SSSA3AE-Z19 Planetary Gearbox Reducer
MACHINE DESIGN · PLANETARY GEARBOX

Neugart PLPE090-020-SSSA3AE-Z19 Planetary Gearbox Reducer

.STEP
Free
SiTime Emerald Series MEMS Oscillators - Programmable Oven and Digitally Controlled OCXOs
ELECTRICAL · MEMS OSCILLATOR

SiTime Emerald Series MEMS Oscillators - Programmable Oven and Digitally Controlled OCXOs

.STEP
Free
nVidia Jetson Nano Development Board 3D Assembly Model
ROBOTICS · NVIDIA JETSON NANO

nVidia Jetson Nano Development Board 3D Assembly Model

.STEP
Free
10-Pin Ceramic MEMS Crystal Oscillator 5032 SMT Case by SiTime
ELECTRICAL · MEMS CRYSTAL OSCILLATOR

10-Pin Ceramic MEMS Crystal Oscillator 5032 SMT Case by SiTime

.STEP
Free
6-Pin 7050 SMT MEMS Crystal Oscillator by SiTime
ELECTRICAL · 6-PIN 7050

6-Pin 7050 SMT MEMS Crystal Oscillator by SiTime

.STEP
Free
4-Pin 7050 SMT MEMS Crystal Oscillator with Center Pin
ELECTRICAL · 4-PIN 7050 SMT

4-Pin 7050 SMT MEMS Crystal Oscillator with Center Pin

.STEP
Free
4-Pin SMT MEMS Crystal Oscillator 7.0mm x 5.0mm with Temperature Compensation
ELECTRICAL · MEMS CRYSTAL OSCILLATOR

4-Pin SMT MEMS Crystal Oscillator 7.0mm x 5.0mm with Temperature Compensation

.STEP
Free
10-Pin SMT MEMS Crystal Oscillator 5.0mm x 3.2mm from SiTime
ELECTRICAL · 10-PIN SMT MEMS CRYSTAL OSCILLATOR

10-Pin SMT MEMS Crystal Oscillator 5.0mm x 3.2mm from SiTime

.STEP
Free
6-Pin MEMS Crystal Oscillator 5032 SMT Case by SiTime
ELECTRICAL · MEMS OSCILLATOR

6-Pin MEMS Crystal Oscillator 5032 SMT Case by SiTime

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

Industrial Mechanical Component CAD Model

.STEP