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
Complete Jeep Assembly Components Collection
AUTOMOTIVE · JEEP

Complete Jeep Assembly Components Collection

.STEP
Free
68 Teeth Gear with 146mm Diameter for Mechanical Applications
MACHINE DESIGN · 68 TEETH GEAR

68 Teeth Gear with 146mm Diameter for Mechanical Applications

.STEP
Free
Caravan and Caravan Chassis Engineering Model
AUTOMOTIVE · CARAVAN

Caravan and Caravan Chassis Engineering Model

.STEP
Free
Professional Hand Riveter Tool for Industrial Use
INDUSTRIAL DESIGN · HAND RIVETER

Professional Hand Riveter Tool for Industrial Use

.STEP

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Automotive Part 3D CAD Model for Engineering Applications
AUTOMOTIVE · AUTOMOTIVE PART

Automotive Part 3D CAD Model for Engineering Applications

.STEP
Free
Automotive Part 3D CAD Model for Engineering Applications
AUTOMOTIVE · 3D CAD MODEL

Automotive Part 3D CAD Model for Engineering Applications

.STEP
Free
High-Quality Rim CAD Model for Engineering Applications
AUTOMOTIVE · WHEEL DESIGN

High-Quality Rim CAD Model for Engineering Applications

.STEP
Free
Hardened Steel Mold for Drilling Machine Manufacturing
MACHINE DESIGN · HARDENED STEEL MOLD

Hardened Steel Mold for Drilling Machine Manufacturing

.STEP
Free
Solid Spool Drive for FS Vehicle - Mechanical Component
AUTOMOTIVE · SOLID SPOOL DRIVE

Solid Spool Drive for FS Vehicle - Mechanical Component

.STEP
Free
Advanced Multi-Environment Robotic Machine Prototype
ROBOTICS · ROBOTIC MACHINE

Advanced Multi-Environment Robotic Machine Prototype

.STEP
Free
Basic Autodesk Inventor Part Model
MACHINE DESIGN · AUTODESK INVENTOR

Basic Autodesk Inventor Part Model

.STEP
Free
6V 10W Vintage Vehicle Light Bulb
AUTOMOTIVE · 6V10W

6V 10W Vintage Vehicle Light Bulb

.STEP
Free
6V 5W Vintage Vehicle Light Bulb CAD Model
AUTOMOTIVE · 6V 5W LIGHT BULB

6V 5W Vintage Vehicle Light Bulb CAD Model

.STEP
Free
Disc Brake Assembly CAD Model for Engineering Applications
AUTOMOTIVE · DISC BRAKE ASSEMBLY

Disc Brake Assembly CAD Model for Engineering Applications

.STEP
Free
Caterpillar 320 Excavator CAD Model
CONSTRUCTION · CATERPILLAR 320

Caterpillar 320 Excavator CAD Model

.STEP
Free
Heavy-Duty Car Trailer with Adjustable Ramps and Support Stand
AUTOMOTIVE · HEAVY-DUTY CAR TRAILER

Heavy-Duty Car Trailer with Adjustable Ramps and Support Stand

.STEP
Free
Large Industrial Vehicle Dimensions 8580mm Length 2500mm Width 3050mm Height
AUTOMOTIVE · INDUSTRIAL VEHICLE

Large Industrial Vehicle Dimensions 8580mm Length 2500mm Width 3050mm Height

.STEP
Free
Biomass Chopper Machine for Efficient Biomass Processing
MACHINE DESIGN · BIOMASS CHOPPER

Biomass Chopper Machine for Efficient Biomass Processing

.STEP
Free
Reworked Gear Wheel 60 Z-18 n-3 for Komatsu Mini Excavator Power Transmission
MACHINE DESIGN · GEAR WHEEL

Reworked Gear Wheel 60 Z-18 n-3 for Komatsu Mini Excavator Power Transmission

.STEP
Free
HSK-C25 ER16 Tool Holder for SPINOGY X22
MACHINE DESIGN · HSK-C25

HSK-C25 ER16 Tool Holder for SPINOGY X22

.STEP
Free
Belt Pulley Mechanism Examples for Industrial Applications
MACHINE DESIGN · BELT PULLEY

Belt Pulley Mechanism Examples for Industrial Applications

.STEP
Free
C Type Hydraulic Press Industrial Equipment
INDUSTRIAL DESIGN · HYDRAULIC PRESS

C Type Hydraulic Press Industrial Equipment

.STEP