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
18-Inch 80/20 Aluminum Rail Profile
INDUSTRIAL DESIGN · 80/20

18-Inch 80/20 Aluminum Rail Profile

.STEP
Free
Professional Engineering Project Collaboration Feedback
ENGINEERING COLLABORATION

Professional Engineering Project Collaboration Feedback

.STEP
Free
Industrial Mechanical Component
MACHINE DESIGN · MECHANICAL COMPONENT

Industrial Mechanical Component

.STEP
Free
Universal Ruler Markup Tool for Precision Measurement
INDUSTRIAL DESIGN · UNIVERSAL RULER MARKUP TOOL

Universal Ruler Markup Tool for Precision Measurement

.STEP

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Compact Wall-Mounted Pen and Highlighter Rack for Organized Storage
INDUSTRIAL DESIGN · WALL-MOUNTED RACK

Compact Wall-Mounted Pen and Highlighter Rack for Organized Storage

.STEP
Free
Electric Solenoid Lock DC 12V Slim Design for Cabinet Doors
ELECTRICAL · ELECTRIC SOLENOID LOCK

Electric Solenoid Lock DC 12V Slim Design for Cabinet Doors

.STEP
Free
Detailed NEMA 17 Stepper Motor Model 17HS4401S for Engineering Use
ROBOTICS · NEMA17

Detailed NEMA 17 Stepper Motor Model 17HS4401S for Engineering Use

.STEP
Free
Pinhole Camera CAD Model for Engineering Applications
INDUSTRIAL DESIGN · PINHOLE CAMERA

Pinhole Camera CAD Model for Engineering Applications

.STEP
Free
Filament Runout Sensor Mount for 3D Printer Extruder
3D PRINTING · FILAMENT RUNOUT SENSOR

Filament Runout Sensor Mount for 3D Printer Extruder

.STEP
Free
Adjustable Wall Mount for Displaying Lego Dropship Sets
INDUSTRIAL DESIGN · ADJUSTABLE WALL MOUNT

Adjustable Wall Mount for Displaying Lego Dropship Sets

.STEP
Free
Detailed 3D Model of CP Stony Creek Bridge - Canadian Railway Architecture
ARCHITECTURE · CP STONY CREEK BRIDGE

Detailed 3D Model of CP Stony Creek Bridge - Canadian Railway Architecture

.STEP
Free
Bike Handle Grip Mold for Silica Molding Applications
AUTOMOTIVE · BIKE HANDLE GRIP

Bike Handle Grip Mold for Silica Molding Applications

.STEP
Free
Mesh Toroid 3D Model for Engineering Applications
MACHINE DESIGN · MESH TOROID

Mesh Toroid 3D Model for Engineering Applications

.STEP
Free
Detailed CAD Model of Sony Walkman - Accurate Replica
INDUSTRIAL DESIGN · SONY WALKMAN

Detailed CAD Model of Sony Walkman - Accurate Replica

.STEP
Free
3-Inch FPV Drone Inspired Flying Graduation Cap Model
ROBOTICS · FLYING GRADUATION CAP

3-Inch FPV Drone Inspired Flying Graduation Cap Model

.STEP
Free
One Way Valve CAD Model for Fluid Control Systems
INDUSTRIAL DESIGN · ONE WAY VALVE

One Way Valve CAD Model for Fluid Control Systems

.STEP
Free
Professional Part Modeling CAD Design
MACHINE DESIGN · MECHANICAL PART

Professional Part Modeling CAD Design

.STEP
Free
Patterned Basket CAD Model for Industrial Design
INDUSTRIAL DESIGN · PATTERNED BASKET

Patterned Basket CAD Model for Industrial Design

.STEP
Free
Double Coil Filament Holder Bracket for 16mm Shelf
3D PRINTING · FILAMENT HOLDER

Double Coil Filament Holder Bracket for 16mm Shelf

.STEP
Free
Protection Cap for WC Toilet Desk - Industrial Design
INDUSTRIAL DESIGN · PROTECTION CAP

Protection Cap for WC Toilet Desk - Industrial Design

.STEP
Free
Parabigyrate Rhombicosidodecahedron Johnson Solid 3D Model
PARABIGYRATE RHOMBICOSIDODECAHEDRON

Parabigyrate Rhombicosidodecahedron Johnson Solid 3D Model

.STEP
Free
Conceptual Robotic Arm Based on Open Source MeArm with SG90 Servo
ROBOTICS · MEARM

Conceptual Robotic Arm Based on Open Source MeArm with SG90 Servo

.STEP