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
50 Gallon Aquarium Model with Glass Tank and Black Plastic Rails
50 GALLON AQUARIUM

50 Gallon Aquarium Model with Glass Tank and Black Plastic Rails

.STEP
Free
Jetboat Featuring Advanced 3D Printed Propulsion System
MARINE · JETBOAT

Jetboat Featuring Advanced 3D Printed Propulsion System

.STEP
Free
Precision Mechanical Component CAD Model
MACHINE DESIGN · PRECISION COMPONENT

Precision Mechanical Component CAD Model

.STEP
Free
Digitized Shape Surface Model Imported into CATIA 3DExperience
INDUSTRIAL DESIGN · DIGITIZED SURFACE MODEL

Digitized Shape Surface Model Imported into CATIA 3DExperience

.STEP

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Intercooler Design for Automotive Cooling Systems
AUTOMOTIVE · INTERCOOLER

Intercooler Design for Automotive Cooling Systems

.STEP
Free
SolidWorks Designed Anchor Model for Engineering Applications
MARINE · ANCHOR

SolidWorks Designed Anchor Model for Engineering Applications

.STEP
Free
Heat Exchanger for Waste Heat Recovery in Industrial Applications
INDUSTRIAL DESIGN · HEAT EXCHANGER

Heat Exchanger for Waste Heat Recovery in Industrial Applications

.STEP
Free
Lighting Equipment for Small Boat Stern Installation
MARINE · LIGHTING EQUIPMENT

Lighting Equipment for Small Boat Stern Installation

.STEP
Free
Yacht Rudder Shaft with Coupling Sleeve
MARINE · YACHTRUDDERSHAFT

Yacht Rudder Shaft with Coupling Sleeve

.STEP
Free
Marine Helipad Design for Ship Decks
MARINE · HELIPAD

Marine Helipad Design for Ship Decks

.STEP
Free
Miniature Ship Coin Storage Compartment for Collection Box
3D PRINTING · MINIATURE SHIP

Miniature Ship Coin Storage Compartment for Collection Box

.STEP
Free
Composite Coupling on a Transmission Shaft with Color Variations
MACHINE DESIGN · COMPOSITE COUPLING

Composite Coupling on a Transmission Shaft with Color Variations

.STEP
Free
Industrial Pipe Model Featuring Rib Design
INDUSTRIAL DESIGN · INDUSTRIAL PIPE

Industrial Pipe Model Featuring Rib Design

.STEP
Free
Rubber Profile Design for Window Contours Using CATIA 3DExperience
INDUSTRIAL DESIGN · RUBBER PROFILE

Rubber Profile Design for Window Contours Using CATIA 3DExperience

.STEP
Free
Underwater Diver Propulsion Device Concept for Four Scuba Divers
MARINE · UNDERWATER PROPULSION

Underwater Diver Propulsion Device Concept for Four Scuba Divers

.STEP
Free
Monoblock Directional Control Valve MB-2 for Hydraulic Systems
INDUSTRIAL DESIGN · MONOBLOCK DIRECTIONAL CONTROL VALVE

Monoblock Directional Control Valve MB-2 for Hydraulic Systems

.STEP
Free
Basic Propeller CAD Model for Engineering Applications
AEROSPACE · PROPELLER

Basic Propeller CAD Model for Engineering Applications

.STEP
Free
Catamaran Boat Design CAD Model
MARINE · CATAMARAN

Catamaran Boat Design CAD Model

.STEP
Free
Water Stream Model for Engineering Visualization
INDUSTRIAL DESIGN · WATER STREAM

Water Stream Model for Engineering Visualization

.STEP
Free
45 ft High Cube Shipping Container - Industrial Storage Solution
MARINE · 45 FT HIGH CUBE

45 ft High Cube Shipping Container - Industrial Storage Solution

.STEP
Free
5-Bladed Propeller with Turbulence Disruptor Fins
AVIATION · 5-BLADED PROPELLER

5-Bladed Propeller with Turbulence Disruptor Fins

.STEP
Free
3D CAD Model of Mechanical Component
MACHINE DESIGN · MECHANICAL COMPONENT

3D CAD Model of Mechanical Component

.STEP