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
Prototype Electronics Soldering Board 5x7 cm with 20x18 Holes
ELECTRICAL · PROTOTYPE BOARD

Prototype Electronics Soldering Board 5x7 cm with 20x18 Holes

.STEP
Free
Pushbutton Switch with Replaceable Cap and Four Leads for Arduino Applications
ELECTRICAL · PUSHBUTTON SWITCH

Pushbutton Switch with Replaceable Cap and Four Leads for Arduino Applications

.STEP
Free
Educational Coding Robot for Kids with Arduino Compatibility
ROBOTICS · EDUCATIONAL ROBOT

Educational Coding Robot for Kids with Arduino Compatibility

.STEP
Free
Buehler DC Motor 31x51 with Encoder Model 1.13.057
MACHINE DESIGN · BUEHLER DC MOTOR 31X51

Buehler DC Motor 31x51 with Encoder Model 1.13.057

.STEP

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MJBots Moteus BLDC Controller Assembly Model
ROBOTICS · MJBOTS MOTEUS

MJBots Moteus BLDC Controller Assembly Model

.STEP
Free
Automated Guide Vehicle with Lidar Sensors and Touchscreen Interface
ROBOTICS · AUTOMATED GUIDE VEHICLE

Automated Guide Vehicle with Lidar Sensors and Touchscreen Interface

.STEP
Free
Two Stage Cycloidal Gearbox with 54mm Motor Diameter and 99 Reduction Ratio
MACHINE DESIGN · TWO STAGE CYCLOIDAL GEARBOX

Two Stage Cycloidal Gearbox with 54mm Motor Diameter and 99 Reduction Ratio

.STEP
Free
Cycloidal Reducer Motor with 76mm Diameter and 15:1 Reduction Ratio
ROBOTICS · CYCLOIDAL REDUCER

Cycloidal Reducer Motor with 76mm Diameter and 15:1 Reduction Ratio

.STEP
Free
Just 'Cuz Robotics 2306.5 1000kV Brushless Motor CAD Model
ROBOTICS · BRUSHLESS MOTOR

Just 'Cuz Robotics 2306.5 1000kV Brushless Motor CAD Model

.STEP
Free
Mayr Brake for Robots with Large Hollow Shaft and Minimal Backlash
ROBOTICS · MAYR BRAKE

Mayr Brake for Robots with Large Hollow Shaft and Minimal Backlash

.STEP
Free
Dual Barrel Mechanism for Robotic Infantry Attack System
ROBOTICS · DUAL BARREL MECHANISM

Dual Barrel Mechanism for Robotic Infantry Attack System

.STEP
Free
Industrial Filter Component for Fluid Systems
INDUSTRIAL DESIGN · INDUSTRIAL FILTER

Industrial Filter Component for Fluid Systems

.STEP
Free
S.BUS2 Servo S AG 300 Industrial Servo Model
ROBOTICS · S.BUS2 SERVO S AG 300

S.BUS2 Servo S AG 300 Industrial Servo Model

.STEP
Free
Front End Suspension System CAD Model for Engineering Practice
AUTOMOTIVE · FRONT END SUSPENSION

Front End Suspension System CAD Model for Engineering Practice

.STEP
Free
L86-M33 Module CAD Model for Engineering Applications
ELECTRICAL · L86-M33

L86-M33 Module CAD Model for Engineering Applications

.STEP
Free
15kg Battle Bot with Spinner Mechanism
ROBOTICS · 15KG BATTLE BOT

15kg Battle Bot with Spinner Mechanism

.STEP
Free
H-Bridge Motor Driver for Arduino and Microcontrollers
ROBOTICS · H-BRIDGE

H-Bridge Motor Driver for Arduino and Microcontrollers

.STEP
Free
Industrial Actuator Component from PT Actuator
MACHINE DESIGN · INDUSTRIAL ACTUATOR

Industrial Actuator Component from PT Actuator

.STEP
Free
Sunon MagLev Brushless DC Motor Fan MF25100V1-1000U-A99
3D PRINTING · SUNON MAGLEV

Sunon MagLev Brushless DC Motor Fan MF25100V1-1000U-A99

.STEP
Free
Fingerprint Biometric Access Control System with Illuminated Keyboard
FINGERPRINT SENSOR

Fingerprint Biometric Access Control System with Illuminated Keyboard

.STEP
Free
Industrial Gear Motor for Mechanical Applications
MACHINE DESIGN · GEAR MOTOR

Industrial Gear Motor for Mechanical Applications

.STEP
Free
Queen of Hearts MiniIQ Combat Robot with Mecanum Drive and Double Disc Spinner
ROBOTICS · QUEEN OF HEARTS MINIIQ

Queen of Hearts MiniIQ Combat Robot with Mecanum Drive and Double Disc Spinner

.STEP