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
Leak Test Special Purpose Machine
MACHINE DESIGN · LEAK TEST MACHINE

Leak Test Special Purpose Machine

.STEP
Free
Radiator Model for Thermal Analysis
AUTOMOTIVE · RADIATOR

Radiator Model for Thermal Analysis

.STEP
Free
Industrial Mechanical Component CAD Model
MACHINE DESIGN · MECHANICAL COMPONENT

Industrial Mechanical Component CAD Model

.STEP
Free
Crankshaft Assembly CAD Model for Engine Design
AUTOMOTIVE · CRANKSHAFT

Crankshaft Assembly CAD Model for Engine Design

.STEP

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Crankshaft CAD Model for Mechanical Design and Engineering
MACHINE DESIGN · CRANKSHAFT

Crankshaft CAD Model for Mechanical Design and Engineering

.STEP
Free
Scooter Basket Accessory for Urban Mobility
AUTOMOTIVE · SCOOTER BASKET

Scooter Basket Accessory for Urban Mobility

.STEP
Free
Aluminum C-Clamp for Industrial and Workshop Use
INDUSTRIAL DESIGN · ALUMINUM C-CLAMP

Aluminum C-Clamp for Industrial and Workshop Use

.STEP
Free
Automotive Component CAD Model
AUTOMOTIVE · AUTOMOTIVE COMPONENT

Automotive Component CAD Model

.STEP
Free
Honda Ridgeline Lift Kit for Enhanced Off-Road Performance
AUTOMOTIVE · HONDA RIDGELINE

Honda Ridgeline Lift Kit for Enhanced Off-Road Performance

.STEP
Free
Shift Knob CAD Model for Automotive Applications
AUTOMOTIVE · SHIFT KNOB

Shift Knob CAD Model for Automotive Applications

.STEP
Free
Honda Ridgeline 9-Inch Navigation Frame CAD Model
AUTOMOTIVE · HONDA RIDGELINE

Honda Ridgeline 9-Inch Navigation Frame CAD Model

.STEP
Free
S2000 iPhone Stand - Durable and Functional Mobile Accessory
INDUSTRIAL DESIGN · S2000

S2000 iPhone Stand - Durable and Functional Mobile Accessory

.STEP
Free
Driving Mode Selector with CAN Bus Control for Electric and Hybrid Vehicles
AUTOMOTIVE · DRIVING MODE SELECTOR

Driving Mode Selector with CAN Bus Control for Electric and Hybrid Vehicles

.STEP
Free
DC/DC Converter VCGI-600-24-4 for Electric and Hybrid Vehicles
AUTOMOTIVE · DC-DC CONVERTER

DC/DC Converter VCGI-600-24-4 for Electric and Hybrid Vehicles

.STEP
Free
Electric Drive System with Planetary Gearbox for Industrial Equipment
MACHINE DESIGN · ELECTRIC DRIVE SYSTEM

Electric Drive System with Planetary Gearbox for Industrial Equipment

.STEP
Free
Traction Inverter RUBRUKS NTPI-600-20 for Electric and Hybrid Vehicles
AUTOMOTIVE · TRACTION INVERTER

Traction Inverter RUBRUKS NTPI-600-20 for Electric and Hybrid Vehicles

.STEP
Free
10S6P Lithium-Ion Battery Pack 3D CAD Model
ENERGY AND POWER · 10S6P

10S6P Lithium-Ion Battery Pack 3D CAD Model

.STEP
Free
Educational Robot Design for Children's Programming Instruction
ROBOTICS · EDUCATIONAL ROBOT

Educational Robot Design for Children's Programming Instruction

.STEP
Free
RBC2-600-22 On-Board Charger for Electric and Hybrid Vehicles
AUTOMOTIVE · RBC2-600-22

RBC2-600-22 On-Board Charger for Electric and Hybrid Vehicles

.STEP
Free
RBC2-360-22 On-Board Charger for Electric and Hybrid Vehicles
AUTOMOTIVE · RBC2-360-22

RBC2-360-22 On-Board Charger for Electric and Hybrid Vehicles

.STEP
Free
RBC-360-22 On-Board Charger for Electric and Hybrid Vehicles
AUTOMOTIVE · RBC-360-22

RBC-360-22 On-Board Charger for Electric and Hybrid Vehicles

.STEP
Free
RUBRUKS HVB-307-100 Lithium Iron Phosphate Battery Module for Energy Storage
ENERGY AND POWER · RUBRUKS HVB-307-100

RUBRUKS HVB-307-100 Lithium Iron Phosphate Battery Module for Energy Storage

.STEP