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
3D Model of Armed Military Boat with Minigun and Grenade Launcher
MARINE · MILITARY BOAT

3D Model of Armed Military Boat with Minigun and Grenade Launcher

.STEP
Free
Autonomous Underwater Vehicle Test Platform with 6 DOF and 4 Actuators
ROBOTICS · AUTONOMOUS UNDERWATER VEHICLE

Autonomous Underwater Vehicle Test Platform with 6 DOF and 4 Actuators

.STEP
Free
Windsurf SDM Extender Component for Marine Equipment
MARINE · WINDSURF SDM EXTENDER

Windsurf SDM Extender Component for Marine Equipment

.STEP
Free
Dual 100% Capacity Service Pump Station
INDUSTRIAL DESIGN · SERVICE PUMP STATION

Dual 100% Capacity Service Pump Station

.STEP

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MTU 4500 Marine Engine CAD Model
MARINE · MTU 4500

MTU 4500 Marine Engine CAD Model

.STEP
Free
Power Boat Concept Design for Marine Engineering
MARINE · POWER BOAT

Power Boat Concept Design for Marine Engineering

.STEP
Free
Hollow Drop 3D Model for Engineering Applications
MACHINE DESIGN · HOLLOW DROP

Hollow Drop 3D Model for Engineering Applications

.STEP
Free
3D CAD Model for Engineering Applications
MACHINE DESIGN · 3D CAD MODEL

3D CAD Model for Engineering Applications

.STEP
Free
NGM-56 Industrial Component Model
MACHINE DESIGN · NGM-56

NGM-56 Industrial Component Model

.STEP
Free
Full-Scale Marine Crane Palfinger Replica CAD Model
MARINE · MARINE CRANE

Full-Scale Marine Crane Palfinger Replica CAD Model

.STEP
Free
Sailor Marifoon RT2048 Marine Radio Communication Device
MARINE · SAILOR MARIFOON RT2048

Sailor Marifoon RT2048 Marine Radio Communication Device

.STEP
Free
Parametric Vee Packing Chevron Seal Model for High-Pressure Applications
INDUSTRIAL DESIGN · VEE PACKING SEAL

Parametric Vee Packing Chevron Seal Model for High-Pressure Applications

.STEP
Free
Airhorn Cicarda Industrial Air Horn Design
AUTOMOTIVE · AIRHORN CICARDA

Airhorn Cicarda Industrial Air Horn Design

.STEP
Free
KT-39Y Shock Absorber Industrial Component
MACHINE DESIGN · KT-39Y

KT-39Y Shock Absorber Industrial Component

.STEP
Free
Bent Blade Propeller CAD Model for Engineering Applications
MARINE · BENT BLADE PROPELLER

Bent Blade Propeller CAD Model for Engineering Applications

.STEP
Free
Industrial Pipe with Flange for Mechanical Systems
INDUSTRIAL DESIGN · INDUSTRIAL PIPE

Industrial Pipe with Flange for Mechanical Systems

.STEP
Free
Marine Hydrophorus Calorifier Tank for Thermal Applications
MARINE · HYDROPHORUS CALORIFIER TANK

Marine Hydrophorus Calorifier Tank for Thermal Applications

.STEP
Free
Martin Type Anchor CAD Model for Engineering Applications
MARINE · MARTIN TYPE ANCHOR

Martin Type Anchor CAD Model for Engineering Applications

.STEP
Free
Anchor Equipment for Historical Warships
MARINE · ANCHOR EQUIPMENT

Anchor Equipment for Historical Warships

.STEP
Free
German Fleet Naval Vessel CAD Model
MARINE · NAVAL VESSEL

German Fleet Naval Vessel CAD Model

.STEP
Free
150mm Casemate Cannon for Historical German Warships
MARINE · 150MM CASEMATE CANNON

150mm Casemate Cannon for Historical German Warships

.STEP
Free
Panama Chock Type AC Cast Steel Mooring Component
MARINE · PANAMA CHOCK TYPE AC

Panama Chock Type AC Cast Steel Mooring Component

.STEP