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
Skywalker 6 | Professional CAD Design
ROBOTICS · SKYWALKER 6

Skywalker 6 | Professional CAD Design

.STEP
Free
Rolhex 1 | Professional CAD Design
INDUSTRIAL DESIGN · ROLHEX 1

Rolhex 1 | Professional CAD Design

.STEP
Free
Icyogajuru 1 | Professional CAD Design
MACHINE DESIGN · ICYOGAJURU 1

Icyogajuru 1 | Professional CAD Design

.STEP
Free
Vtol Aircraft 2 | Professional CAD Design
AVIATION · AIRCRAFT

Vtol Aircraft 2 | Professional CAD Design

.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
Shrinking Disc 1 | Professional CAD Design
MACHINE DESIGN · SHRINKING DISC 1

Shrinking Disc 1 | Professional CAD Design

.STEP
Free
Flywoo Nano Baby 20 2S Avatar Hd Micro Quadcopter 2 | Professional CAD Design
ROBOTICS · FLYWOO NANO BABY 20 2S

Flywoo Nano Baby 20 2S Avatar Hd Micro Quadcopter 2 | Professional CAD Design

.STEP
Free
Flying Squirrel 1 | Professional CAD Design
ROBOTICS · FLYING SQUIRREL 1

Flying Squirrel 1 | Professional CAD Design

.STEP
Free
Pixhawk 2 4 1 | Professional CAD Design
ROBOTICS · PIXHAWK 2.4.1

Pixhawk 2 4 1 | Professional CAD Design

.STEP
Free
Hermes 50 100Mm Rocket 1 | Professional CAD Design
AEROSPACE · HERMES 50 100MM ROCKET 1

Hermes 50 100Mm Rocket 1 | Professional CAD Design

.STEP
Free
Ur 700 Lk 700 1 | Professional CAD Design
MACHINE DESIGN · UR 700 LK 700 1

Ur 700 Lk 700 1 | Professional CAD Design

.STEP
Free
Td 8120Mg Tiankongrc Digital Servo 2 | Professional CAD Design
ROBOTICS · TD 8120MG TIANKONGRC DIGITAL SERVO 2

Td 8120Mg Tiankongrc Digital Servo 2 | Professional CAD Design

.STEP
Free
Medium Intensity Obstruction Light With Assembly On Mast 1 | Professional CAD Design
ENERGY AND POWER · MEDIUM INTENSITY OBSTRUCTION LIGHT

Medium Intensity Obstruction Light With Assembly On Mast 1 | Professional CAD Design

.STEP
Free
Tandem Power Plant Scorpions 1 | Professional CAD Design
ENERGY AND POWER · TANDEM POWER PLANT SCORPIONS 1

Tandem Power Plant Scorpions 1 | Professional CAD Design

.STEP
Free
Rover 16 | Professional CAD Design
AUTOMOTIVE · ROVER 16

Rover 16 | Professional CAD Design

.STEP
Free
F16 4 | Professional CAD Design
AVIATION · F16 4

F16 4 | Professional CAD Design

.STEP
Free
Otonom Dog Robotics 1 | Professional CAD Design
ROBOTICS · OTONOM DOG ROBOTICS 1

Otonom Dog Robotics 1 | Professional CAD Design

.STEP
Free
Automated Grounded Vehicle Futurstic 1 | Professional CAD Design
ROBOTICS · AUTOMATED GROUNDED VEHICLE

Automated Grounded Vehicle Futurstic 1 | Professional CAD Design

.STEP
Free
Rocket Carriage 1 | Professional CAD Design
AEROSPACE · ROCKET CARRIAGE 1

Rocket Carriage 1 | Professional CAD Design

.STEP
Free
Airplane 19 | Professional CAD Design
AVIATION · AIRPLANE 19

Airplane 19 | Professional CAD Design

.STEP
Free
Airspeed 3 | Professional CAD Design
ROBOTICS · AIRSPEED 3

Airspeed 3 | Professional CAD Design

.STEP
Free
Cinec 25 V2 1 1 | Professional CAD Design
ROBOTICS · CINEC 25 V2 1 1

Cinec 25 V2 1 1 | Professional CAD Design

.STEP
Free
Airplane 27 | Professional CAD Design
AVIATION · AIRPLANE 27

Airplane 27 | Professional CAD Design

.STEP