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.

All collections
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 Model of DJI Transmission (TX) for Engineering Use
ROBOTICS · DJI TRANSMISSION

Precision Model of DJI Transmission (TX) for Engineering Use

.STEP
Free
Industrial Mechanical Component
MACHINE DESIGN · MECHANICAL COMPONENT

Industrial Mechanical Component

.STEP
Free
3D Printed Revolve and Pattern Design for Manufacturing
3D PRINTING · REVOLVE

3D Printed Revolve and Pattern Design for Manufacturing

.STEP
Free
SUNLU Filament Spool for 3D Printing
3D PRINTING · SUNLU

SUNLU Filament Spool for 3D Printing

.STEP

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Free
T Type Connection Plate Corner Bracket for 2020 Aluminum Profiles
MACHINE DESIGN · T TYPE CONNECTION PLATE

T Type Connection Plate Corner Bracket for 2020 Aluminum Profiles

.STEP
Free
Creality Watercooling Kit for Sprite Pro Extruder
3D PRINTING · CREALITY SPRITE PRO

Creality Watercooling Kit for Sprite Pro Extruder

.STEP
Free
Creality Cooling Fan Kit for 3D Printers
3D PRINTING · CREALITY

Creality Cooling Fan Kit for 3D Printers

.STEP
Free
3D Model of Union Jack Flag for Printing and Design
3D PRINTING · UNION JACK

3D Model of Union Jack Flag for Printing and Design

.STEP
Free
Cutting Board with Greece Flag Design - CAD Model
INDUSTRIAL DESIGN · CUTTING BOARD

Cutting Board with Greece Flag Design - CAD Model

.STEP
Free
USA Flag Cutting Board CAD Model with Parametric Design
INDUSTRIAL DESIGN · USA FLAG CUTTING BOARD

USA Flag Cutting Board CAD Model with Parametric Design

.STEP
Free
T Elbow Hammer CAD Model for Engineering and Design
INDUSTRIAL DESIGN · T ELBOW HAMMER

T Elbow Hammer CAD Model for Engineering and Design

.STEP
Free
Creality WIFI Smart Kit 2.0 with Ball Pin Mount for 3D Printers
3D PRINTING · CREALITY WIFI SMART KIT 2.0

Creality WIFI Smart Kit 2.0 with Ball Pin Mount for 3D Printers

.STEP
Free
Hadex HY-M284 Solid State Relay with 2 Channels
ELECTRICAL · HADEX HY-M284

Hadex HY-M284 Solid State Relay with 2 Channels

.STEP
Free
Ergonomic Computer Mouse CAD Model with Sleek Design
INDUSTRIAL DESIGN · ERGONOMIC MOUSE

Ergonomic Computer Mouse CAD Model with Sleek Design

.STEP
Free
10-Inch Touchscreen Laptop for Raspberry Pi 5
INDUSTRIAL DESIGN · 10-INCH TOUCHSCREEN LAPTOP

10-Inch Touchscreen Laptop for Raspberry Pi 5

.STEP
Free
Arduino Shield for Project Integration and Development
ELECTRICAL · ARDUINO SHIELD

Arduino Shield for Project Integration and Development

.STEP
Free
Mounting Bracket for Support Structures
INDUSTRIAL DESIGN · MOUNTING BRACKET

Mounting Bracket for Support Structures

.STEP
Free
Simulation Report Analysis for Engineering Applications
MACHINE DESIGN · SIMULATION

Simulation Report Analysis for Engineering Applications

.STEP
Free
2x16 Character LCD Display Module for Development Boards
ELECTRICAL · LCD DISPLAY MODULE

2x16 Character LCD Display Module for Development Boards

.STEP
Free
PVC Drain for Isopor Boxes - Industrial Drainage Component
CONSTRUCTION · PVC DRAIN

PVC Drain for Isopor Boxes - Industrial Drainage Component

.STEP
Free
PVC Drain Cover for Isopor Boxes - Durable Industrial Component
INDUSTRIAL DESIGN · PVC DRAIN COVER

PVC Drain Cover for Isopor Boxes - Durable Industrial Component

.STEP
Free
Sphenocorona Johnson Solid Polyhedron Model
SPHENOCORONA

Sphenocorona Johnson Solid Polyhedron Model

.STEP