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
Siemens Sinamics BOP-2 Panel Operator 6SL3055-0AA00-4BA0
INDUSTRIAL DESIGN · SIEMENS SINAMICS BOP-2

Siemens Sinamics BOP-2 Panel Operator 6SL3055-0AA00-4BA0

.STEP
Free
AD620 Instrumentation Amplifier Module CAD Model
ELECTRICAL · AD620

AD620 Instrumentation Amplifier Module CAD Model

.STEP
Free
Capacitive Soil Moisture Sensor CAD Model for Engineering Applications
INDUSTRIAL DESIGN · CAPACITIVE SOIL MOISTURE SENSOR

Capacitive Soil Moisture Sensor CAD Model for Engineering Applications

.STEP
Free
MORNSUN VRBxxxxS-6WR3 DC-DC Converter Module
ENERGY AND POWER · DC-DC CONVERTER

MORNSUN VRBxxxxS-6WR3 DC-DC Converter Module

.STEP

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Free
XL6019 Bipolar Power Supply Module CAD Model
ELECTRICAL · XL6019

XL6019 Bipolar Power Supply Module CAD Model

.STEP
Free
TEM-CELL Inspired Engineering Project Model
INDUSTRIAL DESIGN · TEM-CELL

TEM-CELL Inspired Engineering Project Model

.STEP
Free
Remote I/O Module RS485 with 4 Analog RTD Inputs
INDUSTRIAL DESIGN · REMOTE I/O MODULE

Remote I/O Module RS485 with 4 Analog RTD Inputs

.STEP
Free
Remote I/O Module RS485 with 8 Current Analog Inputs 16-bit
ELECTRICAL · REMOTE I/O MODULE

Remote I/O Module RS485 with 8 Current Analog Inputs 16-bit

.STEP
Free
Freenove ESP32-S3-WROOM Development Board 3D Model
ELECTRICAL · ESP32-S3-WROOM

Freenove ESP32-S3-WROOM Development Board 3D Model

.STEP
Free
Street Light Design for Urban Infrastructure
CONSTRUCTION · STREET LIGHT

Street Light Design for Urban Infrastructure

.STEP
Free
TO-92 Package Semiconductor Component
ELECTRICAL · TO-92

TO-92 Package Semiconductor Component

.STEP
Free
SOT Package Housings for Diodes, Transistors, and ICs with 3 to 8 Pins
ELECTRICAL · SOT PACKAGE

SOT Package Housings for Diodes, Transistors, and ICs with 3 to 8 Pins

.STEP
Free
HY-SRF05 Ultrasonic Sensor Module for Distance Measurement
ROBOTICS · HY-SRF05

HY-SRF05 Ultrasonic Sensor Module for Distance Measurement

.STEP
Free
ABB S202 C32 Circuit Breaker CAD Model
ELECTRICAL · ABB S202 C32

ABB S202 C32 Circuit Breaker CAD Model

.STEP
Free
Mounting Plate 3PS19-8 OST 107.680225.001-86 Industrial Component
MACHINE DESIGN · MOUNTING PLATE

Mounting Plate 3PS19-8 OST 107.680225.001-86 Industrial Component

.STEP
Free
Centrifugal Fan with AC Backward-Curved Motorized Impeller 225mm Round 230VAC 756CFM
INDUSTRIAL DESIGN · CENTRIFUGAL FAN

Centrifugal Fan with AC Backward-Curved Motorized Impeller 225mm Round 230VAC 756CFM

.STEP
Free
Screw Terminal Breakout Shields for Arduino Mega 2560
ELECTRICAL · SCREW TERMINAL BREAKOUT SHIELD

Screw Terminal Breakout Shields for Arduino Mega 2560

.STEP
Free
Type C Male Connector GT-USB-8016A Technical Model
ELECTRICAL · TYPE C CONNECTOR

Type C Male Connector GT-USB-8016A Technical Model

.STEP
Free
Protective Cover Type 2 Version 3 for M30x1.5 Threaded Connectors GOST 25930-83
ELECTRICAL · PROTECTIVE COVER

Protective Cover Type 2 Version 3 for M30x1.5 Threaded Connectors GOST 25930-83

.STEP
Free
2.54mm Pitch Pin Headers with Jumpers
ELECTRICAL · 2.54MM PITCH

2.54mm Pitch Pin Headers with Jumpers

.STEP
Free
DC Linear Actuator with Built-In End Switches for Precise Control
MACHINE DESIGN · DC LINEAR ACTUATOR

DC Linear Actuator with Built-In End Switches for Precise Control

.STEP
Free
Computer Cooling Fan for Electronic Devices
ELECTRICAL · COOLING FAN

Computer Cooling Fan for Electronic Devices

.STEP