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
Rosenberger N-Type 1" 4-Hole Flange Coaxial Connector up to 11 GHz
ELECTRICAL · ROSENBERGER N-TYPE

Rosenberger N-Type 1" 4-Hole Flange Coaxial Connector up to 11 GHz

.STEP
Free
Connection Nipple Industrial Component
INDUSTRIAL DESIGN · CONNECTION NIPPLE

Connection Nipple Industrial Component

.STEP
Free
Enhanced OLEO Landing Gear Leg for Medium-Sized Aircraft
AVIATION · OLEO LANDING GEAR

Enhanced OLEO Landing Gear Leg for Medium-Sized Aircraft

.STEP
Free
OLEO Landing Gear Leg for Model Jets with 15KG Load Capacity
AVIATION · OLEO LANDING GEAR

OLEO Landing Gear Leg for Model Jets with 15KG Load Capacity

.STEP

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Large Pneumatic Retract Unit for Giant Scale RC Planes
AVIATION · PNEUMATIC RETRACT UNIT

Large Pneumatic Retract Unit for Giant Scale RC Planes

.STEP
Free
Rocket Engine Design for Engineering Applications
AEROSPACE · ROCKET ENGINE

Rocket Engine Design for Engineering Applications

.STEP
Free
Celera-500L Model Aircraft Based on Depron Airplane Design
AVIATION · CELERA-500L

Celera-500L Model Aircraft Based on Depron Airplane Design

.STEP
Free
Wing Skin and Internal Structure CAD Model
AEROSPACE · WING SKIN

Wing Skin and Internal Structure CAD Model

.STEP
Free
Lockheed Martin F-35 Lightning II Stealth Multirole Combat Aircraft
AVIATION · F-35 LIGHTNING II

Lockheed Martin F-35 Lightning II Stealth Multirole Combat Aircraft

.STEP
Free
RC Helicopter Model with Precise Dimensions and Mechanism
AVIATION · RC HELICOPTER

RC Helicopter Model with Precise Dimensions and Mechanism

.STEP
Free
A380 Aircraft Model with Seating Layout
AVIATION · A380

A380 Aircraft Model with Seating Layout

.STEP
Free
Amp / TE Connectivity N-Type Coaxial 1" 4-Hole Flange Connector Model
ELECTRICAL · N-TYPE COAXIAL CONNECTOR

Amp / TE Connectivity N-Type Coaxial 1" 4-Hole Flange Connector Model

.STEP
Free
Bluetooth Horizontally-Corrugated Horn Antenna Model for High-Gain Applications
ELECTRICAL · BLUETOOTH

Bluetooth Horizontally-Corrugated Horn Antenna Model for High-Gain Applications

.STEP
Free
Rosenberger N-Type Coaxial 1" 4-Hole Flange Connector Model for High-Frequency Applications
ELECTRICAL · ROSENBERGER N-TYPE CONNECTOR

Rosenberger N-Type Coaxial 1" 4-Hole Flange Connector Model for High-Frequency Applications

.STEP
Free
Amp / TE Connectivity N-Type Coaxial 1" 4-Hole Flange Connector Model
ELECTRICAL · N-TYPE CONNECTOR

Amp / TE Connectivity N-Type Coaxial 1" 4-Hole Flange Connector Model

.STEP
Free
Amphenol SV Microwave N-Type Coaxial 17.5mm 4-Hole Flange Connector with Tab
ELECTRICAL · AMPHENOL SV MICROWAVE

Amphenol SV Microwave N-Type Coaxial 17.5mm 4-Hole Flange Connector with Tab

.STEP
Free
Industrial Component Resembling A32o Design
MACHINE DESIGN · INDUSTRIAL COMPONENT

Industrial Component Resembling A32o Design

.STEP
Free
Detailed Model Aircraft Design for 3D Printing
AVIATION · MODEL AIRCRAFT

Detailed Model Aircraft Design for 3D Printing

.STEP
Free
XY Linear Guide for Antenna Radiation Calculations
ROBOTICS · XY LINEAR GUIDE

XY Linear Guide for Antenna Radiation Calculations

.STEP
Free
6V 60mAh Solar Cell for Renewable Energy Applications
ENERGY AND POWER · 6V 60MAH SOLAR CELL

6V 60mAh Solar Cell for Renewable Energy Applications

.STEP
Free
Custom Quadrocopter with Brushed Motors and FPV Camera Integration
ROBOTICS · QUADROCOPTER

Custom Quadrocopter with Brushed Motors and FPV Camera Integration

.STEP
Free
3D CAD Model Created with Fusion 360
MACHINE DESIGN · FUSION 360

3D CAD Model Created with Fusion 360

.STEP