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
Engineering Component Work in Progress
MACHINE DESIGN · ENGINEERING COMPONENT

Engineering Component Work in Progress

.STEP
Free
Metric Fixed Anchor Nuts M4 to M6 - Industrial Fasteners
INDUSTRIAL DESIGN · METRIC FIXED ANCHOR NUTS

Metric Fixed Anchor Nuts M4 to M6 - Industrial Fasteners

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

Industrial Step Component CAD Model

.STEP
Free
Precision Mechanical Component CAD Model
MACHINE DESIGN · PRECISION COMPONENT

Precision Mechanical Component CAD Model

.STEP

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Free
I-PEX MHF Micro-Coax RF Receptacle Normally Closed Switch Model
ELECTRICAL · I-PEX MHF

I-PEX MHF Micro-Coax RF Receptacle Normally Closed Switch Model

.STEP
Free
I-PEX MHF Micro-Coax RF Plug for SW23 Normally Closed Switch
ELECTRICAL · I-PEX MHF MICRO-COAX RF PLUG

I-PEX MHF Micro-Coax RF Plug for SW23 Normally Closed Switch

.STEP
Free
I-PEX MHF 7 Micro-Coax 45 GHz RF Receptacle for 5G Applications
ELECTRICAL · I-PEX MHF 7

I-PEX MHF 7 Micro-Coax 45 GHz RF Receptacle for 5G Applications

.STEP
Free
Airbus A330 Aircraft 3D Model
AEROSPACE · AIRBUS A330

Airbus A330 Aircraft 3D Model

.STEP
Free
Brushless Motor for Electric Multi-Rotor UAVs
AVIATION · BRUSHLESS MOTOR

Brushless Motor for Electric Multi-Rotor UAVs

.STEP
Free
BrotherHobby Tornado T5 Pro Racing Drone Motor
ROBOTICS · BROTHERHOBBY TORNADO T5 PRO

BrotherHobby Tornado T5 Pro Racing Drone Motor

.STEP
Free
Sony Camera Controller for UAV Mapping - Seagull REC2
AEROSPACE · SONY CAMERA CONTROLLER

Sony Camera Controller for UAV Mapping - Seagull REC2

.STEP
Free
Engine Covers and Air Deflectors with Cooling Fans for Ural Motorcycle
AUTOMOTIVE · ENGINE COVERS

Engine Covers and Air Deflectors with Cooling Fans for Ural Motorcycle

.STEP
Free
C-47 Pressure Regulating Valve Assembly for DC-3 Aircraft
AVIATION · C-47

C-47 Pressure Regulating Valve Assembly for DC-3 Aircraft

.STEP
Free
700 Size Helicopter Rotor Blade CAD Model
AVIATION · 700 SIZE

700 Size Helicopter Rotor Blade CAD Model

.STEP
Free
Jet Turbine Propeller Fan CAD Model
AEROSPACE · JET TURBINE

Jet Turbine Propeller Fan CAD Model

.STEP
Free
Compact Lightweight Cutter Assembly for Work Table Integration
MACHINE DESIGN · COMPACT CUTTER ASSEMBLY

Compact Lightweight Cutter Assembly for Work Table Integration

.STEP
Free
Concorde Aircraft 3D Model
AEROSPACE · CONCORDE

Concorde Aircraft 3D Model

.STEP
Free
Lipo Battery Holder for UAV Applications
AEROSPACE · LIPO BATTERY HOLDER

Lipo Battery Holder for UAV Applications

.STEP
Free
Children's Assembly Toy Model for Educational Play
ASSEMBLY TOY

Children's Assembly Toy Model for Educational Play

.STEP
Free
Small Jet Aircraft Concept with Chevron Design
AVIATION · SMALL JET AIRCRAFT

Small Jet Aircraft Concept with Chevron Design

.STEP
Free
Prony Brake Dynamometer for Engine Performance Testing
MACHINE DESIGN · PRONY BRAKE DYNAMOMETER

Prony Brake Dynamometer for Engine Performance Testing

.STEP
Free
Keystone Electronics 18650 Dual Battery Holder with Solder Tabs
ELECTRICAL · 18650 BATTERY HOLDER

Keystone Electronics 18650 Dual Battery Holder with Solder Tabs

.STEP