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
Toy Mechanism Engineering Model for Educational Use
MACHINE DESIGN · TOY MECHANISM

Toy Mechanism Engineering Model for Educational Use

.STEP
Free
Precision Mechanical Component for Engineering Applications
MACHINE DESIGN · MECHANICAL COMPONENT

Precision Mechanical Component for Engineering Applications

.STEP
Free
Two-Level Wooden Toolbox with Interlocking Joints for Laser Cutting
INDUSTRIAL DESIGN · WOODEN TOOLBOX

Two-Level Wooden Toolbox with Interlocking Joints for Laser Cutting

.STEP
Free
IRC200 Illuminar Industrial Lighting Fixture
INDUSTRIAL DESIGN · IRC200

IRC200 Illuminar Industrial Lighting Fixture

.STEP

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Industrial Mechanical Component
MACHINE DESIGN · MECHANICAL COMPONENT

Industrial Mechanical Component

.STEP
Free
Struthers Dunn PM-17DY 4PDT Power Relay CAD Model
ELECTRICAL · STRUTHERS DUNN PM-17DY

Struthers Dunn PM-17DY 4PDT Power Relay CAD Model

.STEP
Free
Rare Bottle Design for Industrial Use
INDUSTRIAL DESIGN · BOTTLE

Rare Bottle Design for Industrial Use

.STEP
Free
I-Beam Trolley CAD Model for Mechanical Engineering Applications
MACHINE DESIGN · I-BEAM TROLLEY

I-Beam Trolley CAD Model for Mechanical Engineering Applications

.STEP
Free
KCK02 Industrial Robot Model
ROBOTICS · KCK02

KCK02 Industrial Robot Model

.STEP
Free
Electric Motor CAD Model for Engineering Applications
MACHINE DESIGN · ELECTRIC MOTOR

Electric Motor CAD Model for Engineering Applications

.STEP
Free
Diesel Storage Tank - Industrial Fuel Container
INDUSTRIAL DESIGN · DIESEL STORAGE TANK

Diesel Storage Tank - Industrial Fuel Container

.STEP
Free
Butt Stock Spring for AK and AKS Cleaning Kit Retention
AEROSPACE · BUTTSTOCKSPRING

Butt Stock Spring for AK and AKS Cleaning Kit Retention

.STEP
Free
Turmeric Color Grader Machine CAD Model
INDUSTRIAL DESIGN · TURMERIC COLOR GRADER

Turmeric Color Grader Machine CAD Model

.STEP
Free
Industrial Mechanical Component CAD Model
MACHINE DESIGN · MECHANICAL COMPONENT

Industrial Mechanical Component CAD Model

.STEP
Free
Hydraulic Cylinder 3D Model for Engineering Applications
MACHINE DESIGN · HYDRAULIC CYLINDER

Hydraulic Cylinder 3D Model for Engineering Applications

.STEP
Free
5/4 Industrial Component
MACHINE DESIGN · INDUSTRIAL COMPONENT

5/4 Industrial Component

.STEP
Free
15 Gallon UPH Tank Design
CHEMICAL · 15 GALLON UPH TANK

15 Gallon UPH Tank Design

.STEP
Free
Valve Holder Table Design for Industrial Applications
INDUSTRIAL DESIGN · VALVE HOLDER

Valve Holder Table Design for Industrial Applications

.STEP
Free
Professional Joinery Workbench for Woodworking Projects
INDUSTRIAL DESIGN · JOINERY WORKBENCH

Professional Joinery Workbench for Woodworking Projects

.STEP
Free
Industrial Mezzanine Floor with Guardrail and Sliding Gate
CONSTRUCTION · MEZZANINE FLOOR

Industrial Mezzanine Floor with Guardrail and Sliding Gate

.STEP
Free
1-Inch Metal Sheet Eye Plate for Mechanical Applications
MACHINE DESIGN · 1-INCH EYE PLATE

1-Inch Metal Sheet Eye Plate for Mechanical Applications

.STEP
Free
Desk 11 Variation - Professional Office Furniture Design
INDUSTRIAL DESIGN · DESK 11

Desk 11 Variation - Professional Office Furniture Design

.STEP