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
3D Designed Trophy Model for Display and Awards
3D PRINTING · TROPHY

3D Designed Trophy Model for Display and Awards

.STEP
Free
Augmented Truncated Tetrahedron Johnson Solid Polyhedron
AUGMENTED TRUNCATED TETRAHEDRON

Augmented Truncated Tetrahedron Johnson Solid Polyhedron

.STEP
Free
Drill Stand Adapter for ROYCE RDG-300 with 43mm Mounting Diameter
MACHINE DESIGN · DRILL STAND ADAPTER

Drill Stand Adapter for ROYCE RDG-300 with 43mm Mounting Diameter

.STEP
Free
Binocular B 6x30 Low-Poly Gaming Model
BINOCULAR B 6X30

Binocular B 6x30 Low-Poly Gaming Model

.STEP

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Spiral Vase 3D Model for Industrial Design
INDUSTRIAL DESIGN · SPIRAL VASE

Spiral Vase 3D Model for Industrial Design

.STEP
Free
BNC SDI Port Protective Cap for Secure Connection
ELECTRICAL · BNC SDI PORT

BNC SDI Port Protective Cap for Secure Connection

.STEP
Free
Industrial Component Model for Engineering Familiarization
MACHINE DESIGN · INDUSTRIAL COMPONENT

Industrial Component Model for Engineering Familiarization

.STEP
Free
Industrial Router 100x300x400mm - Precision CNC Component
MACHINE DESIGN · INDUSTRIAL ROUTER

Industrial Router 100x300x400mm - Precision CNC Component

.STEP
Free
Mechanical Design for Avionic Electronic System with Custom Battery and Integrated Components
AVIATION · AVIONIC ELECTRONIC SYSTEM

Mechanical Design for Avionic Electronic System with Custom Battery and Integrated Components

.STEP
Free
Robust Copper Component with Boss Extrudes and Reinforcing Ribs
INDUSTRIAL DESIGN · COPPER COMPONENT

Robust Copper Component with Boss Extrudes and Reinforcing Ribs

.STEP
Free
AZ-Delivery Electronic Component
ELECTRICAL · AZ-DELIVERY

AZ-Delivery Electronic Component

.STEP
Free
M3x4.5mm Brass Nut for Plastic Assemblies
MACHINE DESIGN · M3X4.5MM

M3x4.5mm Brass Nut for Plastic Assemblies

.STEP
Free
3D Printed Case for MKS DLC 32 V2.1 Controller
3D PRINTING · MKS DLC 32 V2.1

3D Printed Case for MKS DLC 32 V2.1 Controller

.STEP
Free
CRB15000 Industrial Component
INDUSTRIAL DESIGN · CRB15000

CRB15000 Industrial Component

.STEP
Free
M4 Hardware Components for Mechanical Assemblies
MACHINE DESIGN · M4 HARDWARE

M4 Hardware Components for Mechanical Assemblies

.STEP
Free
AISI 1020 Steel Mechanical Component with Boss, Fillet, Chamfer, and Mirror Features
MACHINE DESIGN · AISI 1020 STEEL

AISI 1020 Steel Mechanical Component with Boss, Fillet, Chamfer, and Mirror Features

.STEP
Free
Professional 3D CAD Model Designed with SolidWorks
INDUSTRIAL DESIGN · 3D CAD MODEL

Professional 3D CAD Model Designed with SolidWorks

.STEP
Free
Precision Engineered AISI 1020 Steel Component with Rib Reinforcements
MACHINE DESIGN · AISI 1020 STEEL

Precision Engineered AISI 1020 Steel Component with Rib Reinforcements

.STEP
Free
External 120mm Fan Grid with M4 Mounting for 3D Printers
3D PRINTING · 120MM FAN GRID

External 120mm Fan Grid with M4 Mounting for 3D Printers

.STEP
Free
Alloy Steel Component with Boss Extrudes and Rib Features for Structural Integrity
MACHINE DESIGN · ALLOY STEEL

Alloy Steel Component with Boss Extrudes and Rib Features for Structural Integrity

.STEP
Free
3D Model Designed from Point Cloud Data
INDUSTRIAL DESIGN · POINT CLOUD

3D Model Designed from Point Cloud Data

.STEP
Free
Precision Nozzle Needle Holder with Adjustable Diameter Holes
INDUSTRIAL DESIGN · NOZZLE NEEDLE HOLDER

Precision Nozzle Needle Holder with Adjustable Diameter Holes

.STEP