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
Precision Mechanical Component CAD Model
MACHINE DESIGN · PRECISION COMPONENT

Precision Mechanical Component CAD Model

.STEP
Free
Delivery Logistic Quadcopter Design for Efficient Transport
ROBOTICS · QUADCOPTER

Delivery Logistic Quadcopter Design for Efficient Transport

.STEP
Free
Seed Ball Dispenser for Drone Applications
ROBOTICS · SEED BALL DISPENSER

Seed Ball Dispenser for Drone Applications

.STEP
Free
Switchcraft IP66/IP68 Bulkhead Connector for Industrial Applications
ELECTRICAL · SWITCHCRAFT

Switchcraft IP66/IP68 Bulkhead Connector for Industrial Applications

.STEP

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HJT 16 Kiran Mk2 Aircraft 3D Model
AVIATION · HJT 16 KIRAN MK2

HJT 16 Kiran Mk2 Aircraft 3D Model

.STEP
Free
UAV Aircraft Model for Engineering and Design
AEROSPACE · UAV

UAV Aircraft Model for Engineering and Design

.STEP
Free
Rajdhani Express Train Model with EOG, 2AC, and 3AC Coaches
RAJDHANI EXPRESS

Rajdhani Express Train Model with EOG, 2AC, and 3AC Coaches

.STEP
Free
Detailed Orenda Engine Assembly Model
AEROSPACE · ORENDA ENGINE

Detailed Orenda Engine Assembly Model

.STEP
Free
Detailed Hydraulic Power Pack Model for Industrial Machinery
MACHINE DESIGN · HYDRAULIC POWER PACK

Detailed Hydraulic Power Pack Model for Industrial Machinery

.STEP
Free
Industrial Mechanical Component
MACHINE DESIGN · MECHANICAL COMPONENT

Industrial Mechanical Component

.STEP
Free
Pneumatic Tailstock Unit for Automatic Lathe
MACHINE DESIGN · PNEUMATIC TAILSTOCK UNIT

Pneumatic Tailstock Unit for Automatic Lathe

.STEP
Free
Falco F8 Aircraft Assembly Model Adapted to Metric System
AVIATION · FALCO F8

Falco F8 Aircraft Assembly Model Adapted to Metric System

.STEP
Free
Auxiliary Power Unit for Engine Compressor Shaft
AEROSPACE · AUXILIARY POWER UNIT

Auxiliary Power Unit for Engine Compressor Shaft

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

3D CAD Model of Mechanical Component

.STEP
Free
Printed Circuit Board (PCB) Design from DXF File
ELECTRICAL · PCB

Printed Circuit Board (PCB) Design from DXF File

.STEP
Free
Air Purification Canister with 6-Inch Intake and 4-Inch Exhaust
INDUSTRIAL DESIGN · AIR PURIFICATION CANISTER

Air Purification Canister with 6-Inch Intake and 4-Inch Exhaust

.STEP
Free
Train Model on Bridge Structure
TRAIN

Train Model on Bridge Structure

.STEP
Free
Detailed 3D Model of Boeing 787 Aircraft
AVIATION · BOEING 787

Detailed 3D Model of Boeing 787 Aircraft

.STEP
Free
Folding Mechanism Scheme for Engineering Applications
MACHINE DESIGN · FOLDING MECHANISM

Folding Mechanism Scheme for Engineering Applications

.STEP
Free
Multi-Stage Compressor Spool for Turbine Engine
AEROSPACE · MULTI-STAGE COMPRESSOR SPOOL

Multi-Stage Compressor Spool for Turbine Engine

.STEP
Free
Ventilated Disc Brake Rotor for Automotive Applications
AUTOMOTIVE · VENTILATED DISC BRAKE ROTOR

Ventilated Disc Brake Rotor for Automotive Applications

.STEP
Free
Jet Engine Fan CAD Model for Aerospace Applications
AEROSPACE · JET ENGINE FAN

Jet Engine Fan CAD Model for Aerospace Applications

.STEP