system integration CAD Models

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

Browse by part & function

The axis engineers actually search on — pick a part type to filter the catalog.

See all parts

Build kits

Curated systems with verified mating parts — download the whole assembly at once.

All collections
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
1440 models2D drawings
Sort by:
Free
Steam Boat Dorothy 1 | 3D CAD Engineering Model
MARINE · STEAM BOAT DOROTHY 1

Steam Boat Dorothy 1 | 3D CAD Engineering Model

.STEP
Free
Pontoon Type Offshore Rig 1 | 3D CAD Engineering Model
ENERGY AND POWER · PONTOON OFFSHORE RIG

Pontoon Type Offshore Rig 1 | 3D CAD Engineering Model

.STEP
Free
Submarine 23 | 3D CAD Engineering Model
MARINE · SUBMARINE 23

Submarine 23 | 3D CAD Engineering Model

.STEP
Free
Coast Guard Boat 1 | 3D CAD Engineering Model
MARINE · COAST GUARD BOAT 1

Coast Guard Boat 1 | 3D CAD Engineering Model

.STEP

Need a CAD file that is not in the library?

Share your requirement and Marathon OS will match you with a vetted CAD designer for production-ready CAD files, edits and manufacturing documentation.

Get it Built
500+Projects Done
24 hrResponse
15+CAD Tools
Free
Rov 25 | 3D CAD Engineering Model
ROBOTICS · ROV 25

Rov 25 | 3D CAD Engineering Model

.STEP
Free
Contenedor 40 Hc 2 | 3D CAD Engineering Model
INDUSTRIAL DESIGN · CONTENEDOR 40 HC 2

Contenedor 40 Hc 2 | 3D CAD Engineering Model

.STEP
Free
T Top 1 | 3D CAD Engineering Model
MARINE · T TOP 1

T Top 1 | 3D CAD Engineering Model

.STEP
Free
Lego Technic Ocean Explorer 42064 1 | 3D CAD Engineering Model
ROBOTICS · LEGO TECHNIC

Lego Technic Ocean Explorer 42064 1 | 3D CAD Engineering Model

.STEP
Free
Sub Culture Submarine 1 | 3D CAD Engineering Model
MARINE · SUB CULTURE SUBMARINE 1

Sub Culture Submarine 1 | 3D CAD Engineering Model

.STEP
Free
Propeller B Series 1 | 3D CAD Engineering Model
AVIATION · PROPELLER B SERIES 1

Propeller B Series 1 | 3D CAD Engineering Model

.STEP
Free
10 Ft High Cube Container 1 | 3D CAD Engineering Model
CONSTRUCTION · 10 FT HIGH CUBE CONTAINER

10 Ft High Cube Container 1 | 3D CAD Engineering Model

.STEP
Free
Av21 1 | 3D CAD Engineering Model
MACHINE DESIGN · AV21 1

Av21 1 | 3D CAD Engineering Model

.STEP
Free
High Tech Plastics Bolster Elite 1 | 3D CAD Engineering Model
3D PRINTING · HIGH TECH PLASTICS BOLSTER ELITE 1

High Tech Plastics Bolster Elite 1 | 3D CAD Engineering Model

.STEP
Free
Control Head Series 5360 1100 1 | 3D CAD Engineering Model
INDUSTRIAL DESIGN · CONTROL HEAD SERIES 5360 1100 1

Control Head Series 5360 1100 1 | 3D CAD Engineering Model

.STEP
Free
Fin One 1 | 3D CAD Engineering Model
ROBOTICS · FIN ONE 1

Fin One 1 | 3D CAD Engineering Model

.STEP
Free
Vibration Absorber Hose Line 1 | 3D CAD Engineering Model
AUTOMOTIVE · VIBRATION ABSORBER

Vibration Absorber Hose Line 1 | 3D CAD Engineering Model

.STEP
Free
Barge 12M 1 | 3D CAD Engineering Model
MARINE · BARGE 12M 1

Barge 12M 1 | 3D CAD Engineering Model

.STEP
Free
Housing 38 | 3D CAD Engineering Model
MACHINE DESIGN · HOUSING 38

Housing 38 | 3D CAD Engineering Model

.STEP
Free
Fd 26 Power 1 | 3D CAD Engineering Model
ENERGY AND POWER · FD 26 POWER 1

Fd 26 Power 1 | 3D CAD Engineering Model

.STEP
Free
10Ft High Cube Shipping Container 1 | 3D CAD Engineering Model
CONSTRUCTION · 10FT HIGH CUBE SHIPPING CONTAINER

10Ft High Cube Shipping Container 1 | 3D CAD Engineering Model

.STEP
Free
Soviet Navy Uniform 1 | 3D CAD Engineering Model
SOVIET NAVY UNIFORM 1

Soviet Navy Uniform 1 | 3D CAD Engineering Model

.STEP
Free
3D Instalacao Do Sensor 1 | 3D CAD Engineering Model
MACHINE DESIGN · 3D INSTALACAO DO SENSOR 1

3D Instalacao Do Sensor 1 | 3D CAD Engineering Model

.STEP