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
Infinity Pump Replacement Door with Reinforced Locking Tabs
MEDICAL · INFINITY PUMP

Infinity Pump Replacement Door with Reinforced Locking Tabs

.STEP
Free
Medical Equipment Component CAD Model
MEDICAL · MEDICAL EQUIPMENT

Medical Equipment Component CAD Model

.STEP
Free
VortexAir Ultra Advanced Air Purifier with HEPA Filtration and Quiet Operation
INDUSTRIAL DESIGN · VORTEXAIR ULTRA

VortexAir Ultra Advanced Air Purifier with HEPA Filtration and Quiet Operation

.STEP
Free
Plano-Concave Lens CAD Model for Optical Design
PLANO-CONCAVE LENS

Plano-Concave Lens CAD Model for Optical Design

.STEP

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Femoral Hip Prosthesis 3D Model for Biomedical Engineering
MEDICAL · FEMORAL HIP PROSTHESIS

Femoral Hip Prosthesis 3D Model for Biomedical Engineering

.STEP
Free
Professional CAD Model
MACHINE DESIGN · PROFESSIONAL CAD MODEL

Professional CAD Model

.STEP
Free
3D Model of Plate-Loaded Iso-Lateral Kneeling Leg Curl Machine
MACHINE DESIGN · PLATE-LOADED

3D Model of Plate-Loaded Iso-Lateral Kneeling Leg Curl Machine

.STEP
Free
Flexible Capacitive Pressure-Sensing Mat with Parallel-Plate Array
ELECTRICAL · FLEXIBLE CAPACITIVE PRESSURE SENSOR

Flexible Capacitive Pressure-Sensing Mat with Parallel-Plate Array

.STEP
Free
HVAC System Component for Heating, Ventilation, and Air Conditioning
CONSTRUCTION · HEATING

HVAC System Component for Heating, Ventilation, and Air Conditioning

.STEP
Free
HVAC and Healthy Systems Component
CONSTRUCTION · HEALTHY SYSTEMS

HVAC and Healthy Systems Component

.STEP
Free
Industrial Pipe Damper Type 2 for Flow Control
INDUSTRIAL DESIGN · PIPE DAMPER

Industrial Pipe Damper Type 2 for Flow Control

.STEP
Free
Industrial Component Model
MACHINE DESIGN · INDUSTRIAL COMPONENT

Industrial Component Model

.STEP
Free
Medicine Bottle Design for Pharmaceutical Packaging
MEDICAL · MEDICINE BOTTLE

Medicine Bottle Design for Pharmaceutical Packaging

.STEP
Free
Coronary Stent CAD Model for Medical Engineering
MEDICAL · CORONARY STENT

Coronary Stent CAD Model for Medical Engineering

.STEP
Free
Compact Wearable Deep Brain Stimulation Prototype with Stacked PCB Architecture
MEDICAL · DEEP BRAIN STIMULATION

Compact Wearable Deep Brain Stimulation Prototype with Stacked PCB Architecture

.STEP
Free
Advanced Multi-Articulated Prosthetic Hand CAD Model Inspired by Bebionic Design
MEDICAL · PROSTHETIC HAND

Advanced Multi-Articulated Prosthetic Hand CAD Model Inspired by Bebionic Design

.STEP
Free
Pharmaceutical Mixing Equipment CAD Model
CHEMICAL · PHARMACEUTICAL MIXING EQUIPMENT

Pharmaceutical Mixing Equipment CAD Model

.STEP
Free
GROTHEN Micro Peristaltic Pump G15 with 3V or 6V Operation
MEDICAL · GROTHEN G15

GROTHEN Micro Peristaltic Pump G15 with 3V or 6V Operation

.STEP
Free
Special Purpose Machine for Precision Cutting in Metalworking
MACHINE DESIGN · SPECIAL PURPOSE MACHINE

Special Purpose Machine for Precision Cutting in Metalworking

.STEP
Free
Mechanical Metal Construction Component Design
CONSTRUCTION · MECHANICAL COMPONENT

Mechanical Metal Construction Component Design

.STEP
Free
Index Finger Holder for MAX30100/30102 Sensor
MEDICAL · MAX30100

Index Finger Holder for MAX30100/30102 Sensor

.STEP
Free
ZLTECH 6.5 Inch 250W 24V-48V BLDC Rubber Wheel Hub Motor for Medical Robots
MEDICAL · ZLTECH 6.5 INCH

ZLTECH 6.5 Inch 250W 24V-48V BLDC Rubber Wheel Hub Motor for Medical Robots

.STEP