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
Keystone Electronics 18650 Dual Battery Holder SMT Model
ELECTRICAL · 18650 BATTERY HOLDER

Keystone Electronics 18650 Dual Battery Holder SMT Model

.STEP
Free
Keystone Electronics 18650 Dual Battery Holder PTH Model
ELECTRICAL · 18650 BATTERY HOLDER

Keystone Electronics 18650 Dual Battery Holder PTH Model

.STEP
Free
Small Rotor Head CAD Model for Educational Use
AVIATION · ROTOR HEAD

Small Rotor Head CAD Model for Educational Use

.STEP
Free
Keystone Electronics 18650 Single Battery Holder with Solder Tabs
ELECTRICAL · 18650 BATTERY HOLDER

Keystone Electronics 18650 Single Battery Holder with Solder Tabs

.STEP

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Keystone Electronics 18650 Single Battery Holder SMT Model
ELECTRICAL · 18650 BATTERY HOLDER

Keystone Electronics 18650 Single Battery Holder SMT Model

.STEP
Free
Keystone Electronics 18650 Single Battery Holder PTH Model
ELECTRICAL · 18650 BATTERY HOLDER

Keystone Electronics 18650 Single Battery Holder PTH Model

.STEP
Free
GNSS Module Supporting GPS, BeiDou, and GLONASS Systems
ROBOTICS · GNSS MODULE

GNSS Module Supporting GPS, BeiDou, and GLONASS Systems

.STEP
Free
Protective Case for Drone Designed for 3D Printing
AEROSPACE · PROTECTIVE CASE

Protective Case for Drone Designed for 3D Printing

.STEP
Free
3D CAD Model of Mechanical Component
MACHINE DESIGN · MECHANICAL COMPONENT

3D CAD Model of Mechanical Component

.STEP
Free
2020 V-Slot Aluminum Extrusion Profile 200mm for Structural Applications
MACHINE DESIGN · 2020 V-SLOT

2020 V-Slot Aluminum Extrusion Profile 200mm for Structural Applications

.STEP
Free
2040 V-Slot Aluminum Extrusion Profile 200mm
MACHINE DESIGN · 2040 V-SLOT

2040 V-Slot Aluminum Extrusion Profile 200mm

.STEP
Free
3D Model Created from Scanned Data
3D PRINTING · SCANNED DATA

3D Model Created from Scanned Data

.STEP
Free
Optimized Engine Shaft Assembly with Enhanced Structural Stiffness and Vibration Control
AUTOMOTIVE · ENGINE SHAFT ASSEMBLY

Optimized Engine Shaft Assembly with Enhanced Structural Stiffness and Vibration Control

.STEP
Free
Subsonic Wind Tunnel Engineering Project
AEROSPACE · SUBSONIC WIND TUNNEL

Subsonic Wind Tunnel Engineering Project

.STEP
Free
Spinner and Propeller 11x6 L for AN 28 Bryza Aircraft
AEROSPACE · SPINNER

Spinner and Propeller 11x6 L for AN 28 Bryza Aircraft

.STEP
Free
Steering System CAD Model for Engineering Design
AUTOMOTIVE · STEERING SYSTEM

Steering System CAD Model for Engineering Design

.STEP
Free
Micro UAV with 130cm Wingspan Laser-Cut Aircraft Model
AVIATION · MICRO UAV

Micro UAV with 130cm Wingspan Laser-Cut Aircraft Model

.STEP
Free
Aircraft Post Frame for Swift S-1 Airplane with HQ Propeller Profiles
AVIATION · SWIFT S-1

Aircraft Post Frame for Swift S-1 Airplane with HQ Propeller Profiles

.STEP
Free
Turnigy CA80 160kv Brushless Outrunner Motor for 50-80cc Aircraft
AVIATION · TURNIGY CA80

Turnigy CA80 160kv Brushless Outrunner Motor for 50-80cc Aircraft

.STEP
Free
Norcomp 380 MICRO-D Series 9-Pin Female PCB Connector with Male Pins
ELECTRICAL · NORCOMP 380 MICRO-D

Norcomp 380 MICRO-D Series 9-Pin Female PCB Connector with Male Pins

.STEP
Free
RFSP16TA5M43G Absorptive Coaxial SP16T Switch 0.5-43.5 GHz
ELECTRICAL · RFSP16TA5M43G

RFSP16TA5M43G Absorptive Coaxial SP16T Switch 0.5-43.5 GHz

.STEP
Free
Norcomp 380 MICRO-D Series 9-Pin PCB D-sub Male Connector with Female Socket Pins
ELECTRICAL · NORCOMP 380 MICRO-D

Norcomp 380 MICRO-D Series 9-Pin PCB D-sub Male Connector with Female Socket Pins

.STEP