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
6861 Bumper CAD Model with Benchmark Images
AUTOMOTIVE · 6861 BUMPER

6861 Bumper CAD Model with Benchmark Images

.STEP
Free
Drivetrain Assembly for T-Shirt Cannon
MACHINE DESIGN · DRIVETRAIN

Drivetrain Assembly for T-Shirt Cannon

.STEP
Free
FRC Team 250 Dynamos Competition Robot Final Model
ROBOTICS · FRC TEAM 250 DYNAMOS

FRC Team 250 Dynamos Competition Robot Final Model

.STEP
Free
2022 FRC Game Robot CAD Model by River Ridge Royal Robotics
ROBOTICS · 2022 FRC ROBOT

2022 FRC Game Robot CAD Model by River Ridge Royal Robotics

.STEP

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Free
Logistics System for Cargo Transfer Bags Designed for NASA Challenge
AEROSPACE · LOGISTICS SYSTEM

Logistics System for Cargo Transfer Bags Designed for NASA Challenge

.STEP
Free
NEMA 23 Stepper Motor with 12.5:1 Gearbox Assembly
ROBOTICS · NEMA 23

NEMA 23 Stepper Motor with 12.5:1 Gearbox Assembly

.STEP
Free
Self-Propelled Modular Container for Lunar Habitat and Rover Integration
AEROSPACE · SELF-PROPELLED MODULAR CONTAINER

Self-Propelled Modular Container for Lunar Habitat and Rover Integration

.STEP
Free
Rodless Linear Drive Tank CIP System with Motorized Bottom Valve
INDUSTRIAL DESIGN · RODLESS LINEAR DRIVE

Rodless Linear Drive Tank CIP System with Motorized Bottom Valve

.STEP
Free
Mecanum Wheel CAD Model for Advanced Mobility Systems
ROBOTICS · MECANUM WHEEL

Mecanum Wheel CAD Model for Advanced Mobility Systems

.STEP
Free
2023 Bison Robotics Grabber CAD Model with 3D-Printed Components
ROBOTICS · BISON ROBOTICS GRABBER

2023 Bison Robotics Grabber CAD Model with 3D-Printed Components

.STEP
Free
Rapid React Season Engineering Files Collection
MACHINE DESIGN · RAPID REACT SEASON

Rapid React Season Engineering Files Collection

.STEP
Free
2022 FRC Team 4400 Cerbotics Robot CAD Model
ROBOTICS · FRC TEAM 4400

2022 FRC Team 4400 Cerbotics Robot CAD Model

.STEP
Free
FRC 2023 Charged Up Isolated Cube CAD Model
ROBOTICS · FRC2023

FRC 2023 Charged Up Isolated Cube CAD Model

.STEP
Free
Compact Entertainment Robot Design
ROBOTICS · COMPACT ROBOT

Compact Entertainment Robot Design

.STEP
Free
NASA Moon Movers Challenge Concept Model
AEROSPACE · NASA MOON MOVERS

NASA Moon Movers Challenge Concept Model

.STEP
Free
Mechanical Direction Reverser with Threaded Design for 3D Printing Applications
3D PRINTING · MECHANICAL DIRECTION REVERSER

Mechanical Direction Reverser with Threaded Design for 3D Printing Applications

.STEP
Free
Desktop Holder Stand for Phones and Tablets
INDUSTRIAL DESIGN · DESKTOP HOLDER

Desktop Holder Stand for Phones and Tablets

.STEP
Free
B103 Single Turn 10K Potentiometer Component
ELECTRICAL · B103

B103 Single Turn 10K Potentiometer Component

.STEP
Free
Mobile Manipulator Design for Human Service Applications
ROBOTICS · MOBILE MANIPULATOR

Mobile Manipulator Design for Human Service Applications

.STEP
Free
Differential Drive Mobile Robot CAD Model
ROBOTICS · DIFFERENTIAL DRIVE

Differential Drive Mobile Robot CAD Model

.STEP
Free
Matsuura MC-1000VG 3-Axis CNC Vertical Machining Center Model
MACHINE DESIGN · MATSUURA MC-1000VG

Matsuura MC-1000VG 3-Axis CNC Vertical Machining Center Model

.STEP
Free
Innovative Mechanical Design Concept
MACHINE DESIGN · MECHANICAL DESIGN

Innovative Mechanical Design Concept

.STEP