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
Custom Idler Wheel Compatible with Pololu Track
ROBOTICS · IDLER WHEEL

Custom Idler Wheel Compatible with Pololu Track

.STEP
Free
Log Handling Tools for Industrial Applications
INDUSTRIAL DESIGN · LOG HANDLING TOOLS

Log Handling Tools for Industrial Applications

.STEP
Free
3D Printed Drill Bit Holder for Sizes 1 to 13 mm
3D PRINTING · DRILL BIT HOLDER

3D Printed Drill Bit Holder for Sizes 1 to 13 mm

.STEP
Free
3D Model of DJI Osmo Action 5 Pro Camera for Engineering Projects
INDUSTRIAL DESIGN · DJI OSMO ACTION 5 PRO

3D Model of DJI Osmo Action 5 Pro Camera for Engineering Projects

.STEP

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Large 3D Printed Toy Model with Approximate Dimensions
3D PRINTING · LARGE SCALE

Large 3D Printed Toy Model with Approximate Dimensions

.STEP
Free
Surge Arrester Industrial Component for Electrical Protection
ELECTRICAL · SURGE ARRESTER

Surge Arrester Industrial Component for Electrical Protection

.STEP
Free
Mechanical Shaft Coupling for Power Transmission and Vibration Reduction
MACHINE DESIGN · SHAFT COUPLING

Mechanical Shaft Coupling for Power Transmission and Vibration Reduction

.STEP
Free
XL Enclosure with Integrated 8-Inch LED Lighting and WiFi Control
INDUSTRIAL DESIGN · XL ENCLOSURE

XL Enclosure with Integrated 8-Inch LED Lighting and WiFi Control

.STEP
Free
iPhone 16 Pro Max CAD Model
INDUSTRIAL DESIGN · IPHONE 16 PRO MAX

iPhone 16 Pro Max CAD Model

.STEP
Free
Precision and Stability Enhancement Component
MACHINE DESIGN · PRECISION

Precision and Stability Enhancement Component

.STEP
Free
GR 223 Integrated Upper Assembly 400mm Length
MACHINE DESIGN · GR 223

GR 223 Integrated Upper Assembly 400mm Length

.STEP
Free
One Piece Table Top Fidget Spinner with Ball Bearing and Weight Slots
INDUSTRIAL DESIGN · FIDGET SPINNER

One Piece Table Top Fidget Spinner with Ball Bearing and Weight Slots

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

Precision Mechanical Component for Industrial Applications

.STEP
Free
High-Precision Weighing Module with Stainless Steel Housing
INDUSTRIAL DESIGN · HIGH-PRECISION WEIGHING MODULE

High-Precision Weighing Module with Stainless Steel Housing

.STEP
Free
Brushless Repeat Drive MK2 CAD Model
MACHINE DESIGN · BRUSHLESS REPEAT DRIVE MK2

Brushless Repeat Drive MK2 CAD Model

.STEP
Free
SIM7000 Series USB Dongle Component Layout
ELECTRICAL · SIM7000

SIM7000 Series USB Dongle Component Layout

.STEP
Free
MELSERVO J5 Series HK-KT43WK 400W Motor Simplified Geometry
ROBOTICS · MELSERVO J5

MELSERVO J5 Series HK-KT43WK 400W Motor Simplified Geometry

.STEP
Free
Nichibo LD5B-12160E-R-CE DC Motor with Mounting Specifications
MACHINE DESIGN · NICHIBO LD5B-12160E-R-CE

Nichibo LD5B-12160E-R-CE DC Motor with Mounting Specifications

.STEP
Free
Ultralight Starshade Structural Design Concept for Aerospace Applications
AEROSPACE · ULTRALIGHT STARSHADE

Ultralight Starshade Structural Design Concept for Aerospace Applications

.STEP
Free
GT2 Pulley 6mm Width 60 Teeth 20mm Bore Diameter
MACHINE DESIGN · GT2 PULLEY

GT2 Pulley 6mm Width 60 Teeth 20mm Bore Diameter

.STEP
Free
28BYJ-48 Stepper Motor Technical Model
ROBOTICS · 28BYJ-48

28BYJ-48 Stepper Motor Technical Model

.STEP
Free
Actuator Mechanism Variants for Stewart Platform Adaptive Modules
ROBOTICS · STEWART PLATFORM

Actuator Mechanism Variants for Stewart Platform Adaptive Modules

.STEP