mechanical engineering CAD Models

Browse mechanical engineering CAD models used in real projects. Preview online and download STEP/STP, IGES, STL and more. Filter by category, file type, price and popularity.

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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.

7 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.

5 partspairs verified
HARDWARE

Metric Fasteners & Threaded Hardware Pack

A reusable ISO/metric fastener library cluster with screws, nuts, washers, inserts, standoffs and bolt assemblies.

2 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.

7 partspairs verified
ELECTRONICS PROTOTYPING

Arduino / ESP32 Prototyping Kit

A maker electronics cluster with Arduino, ESP32, breadboard, shield, servo, battery holder and enclosure.

7 partspairs verified
ROBOTICS

Robotic Arm + Gripper Kit

A robotic manipulator cluster with 6-DOF arm, gripper, wrist, servo mounts, actuator and linear guide components.

7 partspairs verified
CNC MACHINING

CNC Workholding & Tooling Kit

A CNC machining cluster covering table, clamping, vise, chuck, collet holder, spindle and ball-screw motion.

6 partspairs verified
HVAC / DUCTING

HVAC Ventilation Duct Assembly Kit

A ventilation product cluster with grille, damper, duct adapter, fan, filter, flange and duct clamp.

6 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.

8 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.

9 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.

7 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.

5 partspairs verified
143 models2D drawings
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Free
8 Inch Wheel CAD Model for Engineering Applications
MACHINE DESIGN · 8 INCH WHEEL

8 Inch Wheel CAD Model for Engineering Applications

.STEP
Free
V6 Engine Camshaft CAD Model
AUTOMOTIVE · V6 ENGINE

V6 Engine Camshaft CAD Model

.STEP
Free
Precision Gear Shaft CAD Model for Mechanical Applications
MACHINE DESIGN · GEAR SHAFT

Precision Gear Shaft CAD Model for Mechanical Applications

.STEP
Free
Engine Connecting Rod Assembly CAD Model
AUTOMOTIVE · CONNECTING ROD

Engine Connecting Rod Assembly CAD Model

.STEP

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Free
Crankshaft Assembly CAD Model for Engine Design
AUTOMOTIVE · CRANKSHAFT

Crankshaft Assembly CAD Model for Engine Design

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

Crankshaft CAD Model for Mechanical Design and Engineering

.STEP
Free
Tilting Trailer with Dual Hydraulic System
AUTOMOTIVE · TILTING TRAILER 1

Tilting Trailer with Dual Hydraulic System

.STEP
Free
220 mm Floating Brake Disc for Pitbike
AUTOMOTIVE · 220MM FLOATING BRAKE DISC

220 mm Floating Brake Disc for Pitbike

.STEP
Free
Slipstream Antweight Lifter Battlebot 1 | 3D CAD Engineering Model
ROBOTICS · SLIPSTREAM ANTWEIGHT LIFTER

Slipstream Antweight Lifter Battlebot 1 | 3D CAD Engineering Model

.STEP
Free
Independent Suspension 2 | 3D CAD Engineering Model
AUTOMOTIVE · INDEPENDENT SUSPENSION 2

Independent Suspension 2 | 3D CAD Engineering Model

.STEP
Free
4 Cylinder Engine 15 | 3D CAD Engineering Model
AUTOMOTIVE · 4 CYLINDER ENGINE

4 Cylinder Engine 15 | 3D CAD Engineering Model

.STEP
Free
Pneumatic Drum Brake 1 | 3D CAD Engineering Model
AUTOMOTIVE · PNEUMATIC DRUM BRAKE

Pneumatic Drum Brake 1 | 3D CAD Engineering Model

.STEP
Free
4 Cylinder Engine Assembly 18 | 3D CAD Engineering Model
AUTOMOTIVE · 4 CYLINDER ENGINE

4 Cylinder Engine Assembly 18 | 3D CAD Engineering Model

.STEP
Free
High Pressure Pump For Averaging And Pumping 1 | Professional CAD Design
MACHINE DESIGN · HIGH PRESSURE PUMP

High Pressure Pump For Averaging And Pumping 1 | Professional CAD Design

.STEP
Free
Pipe Support 20 | Professional CAD Design
CONSTRUCTION · PIPE SUPPORT 20

Pipe Support 20 | Professional CAD Design

.STEP
Free
Lift Platform 1 | Professional CAD Design
MACHINE DESIGN · LIFT PLATFORM 1

Lift Platform 1 | Professional CAD Design

.STEP
Free
7 Cylinder Radial Engine 12 | Professional CAD Design
MACHINE DESIGN · 7 CYLINDER RADIAL ENGINE

7 Cylinder Radial Engine 12 | Professional CAD Design

.STEP
Free
Hydraulic Press - Downloadable CAD Representation
MACHINE DESIGN · HYDRAULIC PRESS

Hydraulic Press - Downloadable CAD Representation

.STEP
Free
Axial Joint - Standard Mechanical Component
MACHINE DESIGN · AXIAL JOINT

Axial Joint - Standard Mechanical Component

.STEP
Free
Car Drum Brake | High-Quality CAD Model
AUTOMOTIVE · CAR DRUM BRAKE

Car Drum Brake | High-Quality CAD Model

.STEP
Free
Gearless Transmission | High-Quality CAD Model
MACHINE DESIGN · GEARLESS TRANSMISSION

Gearless Transmission | High-Quality CAD Model

.STEP
Free
Steam Locomotive - Downloadable CAD Representation
INDUSTRIAL DESIGN · STEAM LOCOMOTIVE

Steam Locomotive - Downloadable CAD Representation

.STEP