mechanical design CAD Models

Browse mechanical design 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
1390 models2D drawings
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Free
Underwater Robot Arm 1 | 3D CAD Engineering Model
ROBOTICS · UNDERWATER ROBOT ARM 1

Underwater Robot Arm 1 | 3D CAD Engineering Model

.STEP
Free
Robot Gripper 43 | 3D CAD Engineering Model
ROBOTICS · ROBOT GRIPPER 43

Robot Gripper 43 | 3D CAD Engineering Model

.STEP
Free
Rowing Machine 3 | 3D CAD Engineering Model
INDUSTRIAL DESIGN · ROWING MACHINE 3

Rowing Machine 3 | 3D CAD Engineering Model

.STEP
Free
Mecanum Wheel 85 | 3D CAD Engineering Model
ROBOTICS · MECANUM WHEEL 85

Mecanum Wheel 85 | 3D CAD Engineering Model

.STEP

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Gripper 327 | 3D CAD Engineering Model
ROBOTICS · GRIPPER 327

Gripper 327 | 3D CAD Engineering Model

.STEP
Free
Robo Arm 1 | 3D CAD Engineering Model
ROBOTICS · ROBO ARM 1

Robo Arm 1 | 3D CAD Engineering Model

.STEP
Free
Mechanical Hand Tool 1 | 3D CAD Engineering Model
MACHINE DESIGN · MECHANICAL HAND TOOL 1

Mechanical Hand Tool 1 | 3D CAD Engineering Model

.STEP
Free
Piston 841 | 3D CAD Engineering Model
AUTOMOTIVE · PISTON 841

Piston 841 | 3D CAD Engineering Model

.STEP
Free
Pergel Vinc Jib Crane 1 | 3D CAD Engineering Model
MACHINE DESIGN · PERGEL VINC JIB CRANE 1

Pergel Vinc Jib Crane 1 | 3D CAD Engineering Model

.STEP
Free
2 Cylinder Engine 16 | 3D CAD Engineering Model
MACHINE DESIGN · 2 CYLINDER ENGINE 16

2 Cylinder Engine 16 | 3D CAD Engineering Model

.STEP
Free
Pneumatic Radial Engine 5 | 3D CAD Engineering Model
MACHINE DESIGN · PNEUMATIC RADIAL ENGINE 5

Pneumatic Radial Engine 5 | 3D CAD Engineering Model

.STEP
Free
4 Cylinder Engine 3D Cad Model 1 | 3D CAD Engineering Model
AUTOMOTIVE · 4 CYLINDER ENGINE

4 Cylinder Engine 3D Cad Model 1 | 3D CAD Engineering Model

.STEP
Free
V6 Cam Shaft 2 | 3D CAD Engineering Model
AUTOMOTIVE · V6 CAM SHAFT 2

V6 Cam Shaft 2 | 3D CAD Engineering Model

.STEP
Free
Piston Head 147 | 3D CAD Engineering Model
AUTOMOTIVE · PISTON HEAD 147

Piston Head 147 | 3D CAD Engineering Model

.STEP
Free
V6 Engine Design Assembly 1 | 3D CAD Engineering Model
AUTOMOTIVE · V6 ENGINE

V6 Engine Design Assembly 1 | 3D CAD Engineering Model

.STEP
Free
Robotic Arm 441 | Professional CAD Design
ROBOTICS · ROBOTIC ARM 441

Robotic Arm 441 | Professional CAD Design

.STEP
Free
Hydraulic Trolley 3 | Professional CAD Design
MACHINE DESIGN · HYDRAULIC TROLLEY 3

Hydraulic Trolley 3 | Professional CAD Design

.STEP
Free
Chain Conveyor 29 | Professional CAD Design
INDUSTRIAL DESIGN · CHAIN CONVEYOR 29

Chain Conveyor 29 | Professional CAD Design

.STEP
Free
Smith Gym Machine 1 | Professional CAD Design
MACHINE DESIGN · SMITH GYM MACHINE 1

Smith Gym Machine 1 | Professional CAD Design

.STEP
Free
Gripper 323 | Professional CAD Design
ROBOTICS · GRIPPER 323

Gripper 323 | Professional CAD Design

.STEP
Free
Bike Suspension System 2 | Professional CAD Design
AUTOMOTIVE · BIKE SUSPENSION SYSTEM 2

Bike Suspension System 2 | Professional CAD Design

.STEP
Free
Piston 881 | Professional CAD Design
AUTOMOTIVE · PISTON 881

Piston 881 | Professional CAD Design

.STEP