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
Mechanical Housing with Central Cylindrical Protrusion and Hexagonal Internal Hole
MACHINE DESIGN · MECHANICAL HOUSING

Mechanical Housing with Central Cylindrical Protrusion and Hexagonal Internal Hole

.STEP
Free
Round Flange with Four Mounting Holes and Central Recess for Sealing
MACHINE DESIGN · ROUND FLANGE

Round Flange with Four Mounting Holes and Central Recess for Sealing

.STEP
Free
Stepped Cylindrical Shaft with Longitudinal Grooves for Torque Transmission
MACHINE DESIGN · STEPPED SHAFT

Stepped Cylindrical Shaft with Longitudinal Grooves for Torque Transmission

.STEP
Free
Steel and Polymer Hinges for Rotational Connections in Structures
CONSTRUCTION · STEEL HINGES

Steel and Polymer Hinges for Rotational Connections in Structures

.STEP

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Remotely Operated Vehicle (ROV) Underwater Robotic System
ROBOTICS · REMOTELY OPERATED VEHICLE

Remotely Operated Vehicle (ROV) Underwater Robotic System

.STEP
Free
Industrial Mechanical Component
MACHINE DESIGN · MECHANICAL COMPONENT

Industrial Mechanical Component

.STEP
Free
NREL-OC4 Semisubmersible Research Platform
ENERGY AND POWER · NREL-OC4

NREL-OC4 Semisubmersible Research Platform

.STEP
Free
15 Ton Vertical Hydraulic Press
MACHINE DESIGN · 15 TON VERTICAL HYDRAULIC PRESS

15 Ton Vertical Hydraulic Press

.STEP
Free
12 mm G210 Spring Clamp with Steel Plate
INDUSTRIAL DESIGN · 12 MM G210

12 mm G210 Spring Clamp with Steel Plate

.STEP
Free
Nastil 1060-1100-1 Industrial Platform
INDUSTRIAL DESIGN · NASTIL 1060-1100-1

Nastil 1060-1100-1 Industrial Platform

.STEP
Free
Panel with Window Canvases for Electrical Components Enclosure
ELECTRICAL · ELECTRICAL ENCLOSURE

Panel with Window Canvases for Electrical Components Enclosure

.STEP
Free
F+M 8-Pin Cable Assembly
ELECTRICAL · 8-PIN CABLE

F+M 8-Pin Cable Assembly

.STEP
Free
Male and Female Vented Muffler
AUTOMOTIVE · VENTED MUFFLER

Male and Female Vented Muffler

.STEP
Free
M24x1.5 Threaded Stud 24mm Diameter
MACHINE DESIGN · M24X1.5

M24x1.5 Threaded Stud 24mm Diameter

.STEP
Free
Electric Azipod Thruster for Passenger Ferries - Marine Propulsion System
MARINE · ELECTRIC AZIPOD THRUSTER

Electric Azipod Thruster for Passenger Ferries - Marine Propulsion System

.STEP
Free
High Pressure 12V/24V DC Water Pump CAD Model
MACHINE DESIGN · HIGH PRESSURE WATER PUMP

High Pressure 12V/24V DC Water Pump CAD Model

.STEP
Free
Custom Frigate Ship Design for Marine Engineering
MARINE · NAVAL ARCHITECTURE

Custom Frigate Ship Design for Marine Engineering

.STEP
Free
Compact Magnetic Lock Fishing Rig Box with Multiple Size Options
3D PRINTING · MAGNETIC LOCK

Compact Magnetic Lock Fishing Rig Box with Multiple Size Options

.STEP
Free
Retractable Table for Van and Bus Applications
AUTOMOTIVE · RETRACTABLE TABLE

Retractable Table for Van and Bus Applications

.STEP
Free
3D Printed RC Submarine Draft Model
MARINE · RC SUBMARINE

3D Printed RC Submarine Draft Model

.STEP
Free
Marine Exhaust Manifold for Engine Systems
MARINE · EXHAUST MANIFOLD

Marine Exhaust Manifold for Engine Systems

.STEP
Free
Vertical Shaft with Internal Gear 10mm and 16mm, Steel Grade 04
MACHINE DESIGN · VERTICAL SHAFT

Vertical Shaft with Internal Gear 10mm and 16mm, Steel Grade 04

.STEP