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
Glue Storage Container for Workbench and Fridge
3D PRINTING · GLUE STORAGE CONTAINER

Glue Storage Container for Workbench and Fridge

.STEP
Free
Compact Threaded Container with Knurled Lid for Small Items
INDUSTRIAL DESIGN · THREADED CONTAINER

Compact Threaded Container with Knurled Lid for Small Items

.STEP
Free
Industrial Component with Surface Imperfections
MACHINE DESIGN · INDUSTRIAL COMPONENT

Industrial Component with Surface Imperfections

.STEP
Free
Training CAD Model with Detailed Drawings
INDUSTRIAL DESIGN · TRAINING MODEL

Training CAD Model with Detailed Drawings

.STEP

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Adjustable Four-Blade Mechanism for 3D Printing Assemblies
3D PRINTING · ADJUSTABLE FOUR-BLADE MECHANISM

Adjustable Four-Blade Mechanism for 3D Printing Assemblies

.STEP
Free
SMA-KWE Five-Pin Connector Component
ELECTRICAL · SMA-KWE

SMA-KWE Five-Pin Connector Component

.STEP
Free
Stream Deck Mk.2 Holder with FEA Validation
INDUSTRIAL DESIGN · STREAM DECK MK.2

Stream Deck Mk.2 Holder with FEA Validation

.STEP
Free
Versatile Electronic Enclosure for PCB Protection and Connectivity
ELECTRICAL · ELECTRONIC ENCLOSURE

Versatile Electronic Enclosure for PCB Protection and Connectivity

.STEP
Free
3D CAD Model for Practice and Educational Use
3D CAD MODEL

3D CAD Model for Practice and Educational Use

.STEP
Free
ABB TTF300 with 2-Inch Pipe Mounting Bracket
INDUSTRIAL DESIGN · ABB TTF300

ABB TTF300 with 2-Inch Pipe Mounting Bracket

.STEP
Free
3DS Circle Pad Module CAD Model for Electronic Device Design
ELECTRICAL · 3DS CIRCLE PAD MODULE

3DS Circle Pad Module CAD Model for Electronic Device Design

.STEP
Free
Voronoi Pattern CD Stub for Unique Plug Designs
INDUSTRIAL DESIGN · VORONOI PATTERN

Voronoi Pattern CD Stub for Unique Plug Designs

.STEP
Free
Fairyweight Four-Wheel Combat Robot with Vertical Dual-Disc Spinner
ROBOTICS · FAIRYWEIGHT ROBOT

Fairyweight Four-Wheel Combat Robot with Vertical Dual-Disc Spinner

.STEP
Free
Modern 3D-Printed Plant Stand with Wooden Elements
3D PRINTING · 3D-PRINTED JOINTS

Modern 3D-Printed Plant Stand with Wooden Elements

.STEP
Free
Custom 3D Printed Detergent Cup Designed for Support-Free Printing
3D PRINTING · DETERGENT CUP

Custom 3D Printed Detergent Cup Designed for Support-Free Printing

.STEP
Free
Industrial Component Model
MACHINE DESIGN · INDUSTRIAL COMPONENT

Industrial Component Model

.STEP
Free
Circular Ball Bearing with 6mm Inner Diameter and 17mm Outer Diameter
MACHINE DESIGN · BALL BEARING

Circular Ball Bearing with 6mm Inner Diameter and 17mm Outer Diameter

.STEP
Free
Precision Drop Indicator Mount for Granite Plates
MACHINE DESIGN · PRECISION DROP INDICATOR MOUNT

Precision Drop Indicator Mount for Granite Plates

.STEP
Free
Dimensionally Accurate Gear Reduction Model Compatible with DFR0430, DFR0429, DFR0399
MACHINE DESIGN · GEAR REDUCTION

Dimensionally Accurate Gear Reduction Model Compatible with DFR0430, DFR0429, DFR0399

.STEP
Free
SCARA Robotic Arm with 3 Degrees of Freedom and Linear Actuator
ROBOTICS · SCARA

SCARA Robotic Arm with 3 Degrees of Freedom and Linear Actuator

.STEP
Free
SCARA Robot Alternative Model for Industrial Automation
ROBOTICS · SCARA ROBOT

SCARA Robot Alternative Model for Industrial Automation

.STEP
Free
Filament Production Process for 3D Printing and Manufacturing
3D PRINTING · FILAMENT EXTRUSION

Filament Production Process for 3D Printing and Manufacturing

.STEP