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
DC044 5.5x2.1mm Barrel Jack Connector for PCB Mounting
ELECTRICAL · DC044

DC044 5.5x2.1mm Barrel Jack Connector for PCB Mounting

.STEP
Free
JD-375 XLR Socket Connector for Audio and Electronic Applications
ELECTRICAL · JD-375

JD-375 XLR Socket Connector for Audio and Electronic Applications

.STEP
Free
U-Blox LEA-M8T GPS Timing Module with Castellated Edge Connectors
ELECTRICAL · U-BLOX LEA-M8T

U-Blox LEA-M8T GPS Timing Module with Castellated Edge Connectors

.STEP
Free
EMG Data Logger and Analyzer PCB and Schematic Design
ELECTRICAL · EMG DATA LOGGER

EMG Data Logger and Analyzer PCB and Schematic Design

.STEP

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Compact Mini Voltmeter 0-30V with Three-Digit Display
ELECTRICAL · VOLTMETER

Compact Mini Voltmeter 0-30V with Three-Digit Display

.STEP
Free
Gasket BINDER 04 0722 000 Industrial Seal Component
MACHINE DESIGN · GASKET BINDER 04 0722 000

Gasket BINDER 04 0722 000 Industrial Seal Component

.STEP
Free
Planetary Gear AC Servo Motor with Brake HK-KR43BG1_12 and Gear Ratio 12
MACHINE DESIGN · PLANETARY GEAR

Planetary Gear AC Servo Motor with Brake HK-KR43BG1_12 and Gear Ratio 12

.STEP
Free
Planetary Gear AC Servo Motor HK-KR43G1_12 with Gear Ratio 12
MACHINE DESIGN · PLANETARY GEAR

Planetary Gear AC Servo Motor HK-KR43G1_12 with Gear Ratio 12

.STEP
Free
Sunon Exhaust Fan 0.14A Industrial Cooling Component
INDUSTRIAL DESIGN · SUNON EXHAUST FAN

Sunon Exhaust Fan 0.14A Industrial Cooling Component

.STEP
Free
22mm Mushroom Head Push Button Switch Model
ELECTRICAL · 22MM MUSHROOM HEAD PUSH BUTTON SWITCH

22mm Mushroom Head Push Button Switch Model

.STEP
Free
22mm Red TN2 Automotive Switch with Lamp, Type 1NO1NC
AUTOMOTIVE · 22MM SWITCH

22mm Red TN2 Automotive Switch with Lamp, Type 1NO1NC

.STEP
Free
Dot Matrix Display Module for Arduino Projects
ELECTRICAL · DOT MATRIX DISPLAY

Dot Matrix Display Module for Arduino Projects

.STEP
Free
Precision Measurement Device CAD Model
INDUSTRIAL DESIGN · PRECISION MEASUREMENT

Precision Measurement Device CAD Model

.STEP
Free
4.6x2.2mm Momentary Push Button Switch Model
ELECTRICAL · MOMENTARY PUSH BUTTON SWITCH

4.6x2.2mm Momentary Push Button Switch Model

.STEP
Free
4 Inch Exhaust Fan for PC and Refrigerator Cooling
ELECTRICAL · EXHAUST FAN

4 Inch Exhaust Fan for PC and Refrigerator Cooling

.STEP
Free
Vacuum Pump Assembly for Industrial Applications
INDUSTRIAL DESIGN · VACUUM PUMP

Vacuum Pump Assembly for Industrial Applications

.STEP
Free
Inline Wire Joiner for Electrical Connections 600V 32A Capacity
ELECTRICAL · INLINE WIRE JOINER

Inline Wire Joiner for Electrical Connections 600V 32A Capacity

.STEP
$7
Muscle Car Concept – Red Rims & Grey Body stl
AUTOMOTIVE · SOLIDWORKS

Muscle Car Concept – Red Rims & Grey Body stl

.STL
$6
6x6 Off-Road Expedition Camper Truck-stl
AUTOMOTIVE · SOLIDWORKS

6x6 Off-Road Expedition Camper Truck-stl

.STL
Free
Single Cell Holder for 21700 Battery
ELECTRICAL · 21700 BATTERY

Single Cell Holder for 21700 Battery

.STEP
Free
Three-Phase Circuit Breaker PDC11F160TAENN Industrial Model
ELECTRICAL · THREE-PHASE CIRCUIT BREAKER

Three-Phase Circuit Breaker PDC11F160TAENN Industrial Model

.STEP
Free
5.5kW Cylindrical Gear Motor from Mitsubishi Electric DM-DP Series
MACHINE DESIGN · 5.5KW

5.5kW Cylindrical Gear Motor from Mitsubishi Electric DM-DP Series

.STEP