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
Simple Mechanical Part Model for Engineering Applications
MACHINE DESIGN · MECHANICAL PART

Simple Mechanical Part Model for Engineering Applications

.STEP
Free
Alloy Steel Mechanical Component with Revolve Boss and Circular Pattern Features
MACHINE DESIGN · ALLOY STEEL

Alloy Steel Mechanical Component with Revolve Boss and Circular Pattern Features

.STEP
Free
Plain Carbon Steel Mechanical Part with Boss Extrude and Fillet Features
MACHINE DESIGN · PLAIN CARBON STEEL

Plain Carbon Steel Mechanical Part with Boss Extrude and Fillet Features

.STEP
Free
CoreXY 3D Printer Frame with Hypercube Aluminum Profile
3D PRINTING · COREXY

CoreXY 3D Printer Frame with Hypercube Aluminum Profile

.STEP

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TNUT University Emblem 3D Model
TNUT UNIVERSITY EMBLEM

TNUT University Emblem 3D Model

.STEP
Free
USB Quick Charge Power Bank Circuit Board Assembly
ELECTRICAL · USB QUICK CHARGE

USB Quick Charge Power Bank Circuit Board Assembly

.STEP
Free
Thread-Clamping Smartphone Holder for Cortisol Strip
MEDICAL · THREAD-CLAMPING

Thread-Clamping Smartphone Holder for Cortisol Strip

.STEP
Free
Gyrobifastigium Johnson Solid Polyhedron Model
GYROBIFASTIGIUM

Gyrobifastigium Johnson Solid Polyhedron Model

.STEP
Free
Automizer 22mm Vaping Component CAD Model
INDUSTRIAL DESIGN · AUTOMIZER 22MM

Automizer 22mm Vaping Component CAD Model

.STEP
Free
Alloy Steel Mechanical Part with Advanced Features for High-Strength Applications
MACHINE DESIGN · ALLOY STEEL

Alloy Steel Mechanical Part with Advanced Features for High-Strength Applications

.STEP
Free
Durable Plain Carbon Steel Component with Boss and Cut Extrude Features
MACHINE DESIGN · PLAIN CARBON STEEL

Durable Plain Carbon Steel Component with Boss and Cut Extrude Features

.STEP
Free
Gripper Mechanism for FRC Robotics Applications
ROBOTICS · GRIPPER MECHANISM

Gripper Mechanism for FRC Robotics Applications

.STEP
Free
House Stark Page Marker Inspired by Game of Thrones
HOUSE STARK

House Stark Page Marker Inspired by Game of Thrones

.STEP
Free
3D CAD Model Created in Autodesk Fusion 360
MACHINE DESIGN · AUTODESK FUSION 360

3D CAD Model Created in Autodesk Fusion 360

.STEP
Free
Still Air Box for Controlled Laboratory Environments
MEDICAL · STILL AIR BOX

Still Air Box for Controlled Laboratory Environments

.STEP
Free
Motor Cover Solid Model for Engineering Applications
MACHINE DESIGN · MOTOR COVER

Motor Cover Solid Model for Engineering Applications

.STEP
Free
High-Precision FDM 3D Printer with Large Build Volume
3D PRINTING · FDM

High-Precision FDM 3D Printer with Large Build Volume

.STEP
Free
Custom RC Boat with Brushless DC Motor - CAD Model and Assembly
MARINE · RC BOAT

Custom RC Boat with Brushless DC Motor - CAD Model and Assembly

.STEP
Free
6DOF Robotic Arm with Integrated Frameless Motors and Custom Aluminum Construction
ROBOTICS · 6DOF ROBOTIC ARM

6DOF Robotic Arm with Integrated Frameless Motors and Custom Aluminum Construction

.STEP
Free
Wall-Mount Bracket for Amazon Alexa Device - 3D Printed Solution
3D PRINTING · WALL-MOUNT BRACKET

Wall-Mount Bracket for Amazon Alexa Device - 3D Printed Solution

.STEP
Free
K.O LOVE 3D Printer Industrial Model
3D PRINTING · K.O LOVE

K.O LOVE 3D Printer Industrial Model

.STEP
Free
3D Assembly Model of WBH800 Industrial Mixer
INDUSTRIAL DESIGN · WBH800

3D Assembly Model of WBH800 Industrial Mixer

.STEP