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 Scan Markers with Multiple Magnet Slots
3D PRINTING · 3D SCAN MARKERS

3D Scan Markers with Multiple Magnet Slots

.STEP
Free
5-Inch Freestyle FPV Drone with X-Frame Design
ROBOTICS · 5INCH FREESTYLE FPV DRONE

5-Inch Freestyle FPV Drone with X-Frame Design

.STEP
Free
E3D Revo High Temperature Heaterblock CAD Model
3D PRINTING · E3D REVO

E3D Revo High Temperature Heaterblock CAD Model

.STEP
Free
Quick and Accurate Part Modeling in FreeCAD for Beginners
MACHINE DESIGN · FREECAD FOR BEGINNERS 041 1

Quick and Accurate Part Modeling in FreeCAD for Beginners

.STEP

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Free
Quick and Accurate Part Modeling in FreeCAD for Beginners
MACHINE DESIGN · FREECAD FOR BEGINNERS 042 1

Quick and Accurate Part Modeling in FreeCAD for Beginners

.STEP
Free
Multi-Drum Machine Mounting Plate Design
3D PRINTING · SYNTHMOUNT 1

Multi-Drum Machine Mounting Plate Design

.STEP
Free
Quick and Accurate Part Modeling in FreeCAD for Beginners
MACHINE DESIGN · FREECAD FOR BEGINNERS 043 1

Quick and Accurate Part Modeling in FreeCAD for Beginners

.STEP
Free
Quick and Accurate Part Modeling in FreeCAD for Beginners
MACHINE DESIGN · FREECAD FOR BEGINNERS 044 1

Quick and Accurate Part Modeling in FreeCAD for Beginners

.STEP
Free
Quick and Accurate Part Modeling in FreeCAD for Beginners
MACHINE DESIGN · FREECAD FOR BEGINNERS 045 1

Quick and Accurate Part Modeling in FreeCAD for Beginners

.STEP
Free
Mitutoyo Caliper Case with Magnetic Fixing
INDUSTRIAL DESIGN · MITUTOYO CALIPER CASE

Mitutoyo Caliper Case with Magnetic Fixing

.STEP
Free
Aimpoint Acro Mounts for Precision Optics
AIMPOINT ACRO MOUNT

Aimpoint Acro Mounts for Precision Optics

.STEP
Free
CSWA Exam Assembly Practice with Screw Mate Setup for SOLIDWORKS
MACHINE DESIGN · CSWA EXAM

CSWA Exam Assembly Practice with Screw Mate Setup for SOLIDWORKS

.STEP
Free
Industrial Component Model
MACHINE DESIGN · INDUSTRIAL COMPONENT

Industrial Component Model

.STEP
Free
Festive Holiday Tree with Decorative Elements and Creative Models
3D PRINTING · HOLIDAY TREE

Festive Holiday Tree with Decorative Elements and Creative Models

.STEP
Free
Disc Golf Bag Support - Durable and Functional Design
INDUSTRIAL DESIGN · DISC GOLF BAG SUPPORT

Disc Golf Bag Support - Durable and Functional Design

.STEP
Free
Allen Key Set with Sizes from 1.5mm to 10mm
MACHINE DESIGN · ALLEN KEY SET

Allen Key Set with Sizes from 1.5mm to 10mm

.STEP
Free
Triaugmented Hexagonal Prism Johnson Solid 3D Model
TRIAUGMENTED HEXAGONAL PRISM

Triaugmented Hexagonal Prism Johnson Solid 3D Model

.STEP
Free
Lamination Castle 3D Printed Assembly Design
3D PRINTING · LAMINATION CASTLE

Lamination Castle 3D Printed Assembly Design

.STEP
Free
Door Hall Sensor System with MQTT Cloud Integration
ELECTRICAL · DOOR HALL SENSOR

Door Hall Sensor System with MQTT Cloud Integration

.STEP
Free
Protective Cover for Wind Up Music Box
INDUSTRIAL DESIGN · PROTECTIVE COVER

Protective Cover for Wind Up Music Box

.STEP
Free
3D CAD Model of Mechanical Part Created in FreeCAD
MACHINE DESIGN · MECHANICAL COMPONENT

3D CAD Model of Mechanical Part Created in FreeCAD

.STEP
Free
3D CAD Model of Mechanical Part Created in FreeCAD
MACHINE DESIGN · MECHANICAL COMPONENT

3D CAD Model of Mechanical Part Created in FreeCAD

.STEP