mechanical systems CAD Models in Machine design

Browse mechanical systems CAD models within Machine design. Preview online and download STEP/STP, IGES, STL and more. Filter by 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
276 models2D drawings
Sort by:
Free
Steel Frame Cnc 500X500X150 | 3D Engineering Design File
MACHINE DESIGN · STEEL FRAME

Steel Frame Cnc 500X500X150 | 3D Engineering Design File

.STEP
Free
Peripheral Pump | High-Quality CAD Model
MACHINE DESIGN · PERIPHERAL PUMP

Peripheral Pump | High-Quality CAD Model

.STEP
Free
Segemented Girth Gear | High-Quality CAD Model
MACHINE DESIGN · SEGMENTED GIRTH GEAR

Segemented Girth Gear | High-Quality CAD Model

.STEP
Free
Sfu1605 Ball Screw Fusion 360 Model Customizable | 3D Engineering Design File
MACHINE DESIGN · FUSION 360

Sfu1605 Ball Screw Fusion 360 Model Customizable | 3D Engineering Design File

.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
Frog Shaped - Downloadable CAD Representation
MACHINE DESIGN · FROG SHAPED

Frog Shaped - Downloadable CAD Representation

.STEP
Free
Steam Boiler Injector | 3D Engineering Design File
MACHINE DESIGN · STEAM BOILER INJECTOR

Steam Boiler Injector | 3D Engineering Design File

.STEP
Free
- Downloadable CAD Representation
MACHINE DESIGN · MECHANICAL SYSTEMS

- Downloadable CAD Representation

.STEP
Free
Model 22 Solidworks Practice | 3D Engineering Design File
MACHINE DESIGN · MODEL 22

Model 22 Solidworks Practice | 3D Engineering Design File

.STEP
Free
Collapsible Hand Crossbow - Standard Mechanical Component
MACHINE DESIGN · COLLAPSIBLE HAND CROSSBOW

Collapsible Hand Crossbow - Standard Mechanical Component

.STEP
Free
Comem Ris2 - Downloadable CAD Representation
MACHINE DESIGN · COMEM RIS2

Comem Ris2 - Downloadable CAD Representation

.STEP
Free
Hovercraft V4 - Downloadable CAD Representation
MACHINE DESIGN · HOVERCRAFT V4

Hovercraft V4 - Downloadable CAD Representation

.STEP
Free
Wire Ropes - Downloadable CAD Representation
MACHINE DESIGN · WIRE ROPES

Wire Ropes - Downloadable CAD Representation

.STEP
Free
Teco Tk9000 | 3D Engineering Design File
MACHINE DESIGN · TECO TK9000

Teco Tk9000 | 3D Engineering Design File

.STEP
Free
Air Fitting 3/8" Bsp With Check Valve - Downloadable CAD Representation
MACHINE DESIGN · AIR FITTING

Air Fitting 3/8" Bsp With Check Valve - Downloadable CAD Representation

.STEP
Free
Vetus_Mtc3008 - Standard Mechanical Component
MACHINE DESIGN · VETUS_MTC3008

Vetus_Mtc3008 - Standard Mechanical Component

.STEP
Free
Side Prominent Hinge Hengzhu Hl003-1 | High-Quality CAD Model
MACHINE DESIGN · SIDE PROMINENT HINGE

Side Prominent Hinge Hengzhu Hl003-1 | High-Quality CAD Model

.STEP
Free
Limit Switch | High-Quality CAD Model
MACHINE DESIGN · LIMIT SWITCH

Limit Switch | High-Quality CAD Model

.STEP
Free
Lp-20-J05Pe-01 | 3D Engineering Design File
MACHINE DESIGN · LP-20-J05PE-01

Lp-20-J05Pe-01 | 3D Engineering Design File

.STEP
Free
Es6Pbeige | 3D Engineering Design File
MACHINE DESIGN · ES6PBEIGE

Es6Pbeige | 3D Engineering Design File

.STEP
Free
Sub Sma | High-Quality CAD Model
MACHINE DESIGN · SUB SMA

Sub Sma | High-Quality CAD Model

.STEP
Free
Sim1-1205-Sil4 | 3D Engineering Design File
MACHINE DESIGN · SIM1-1205-SIL4

Sim1-1205-Sil4 | 3D Engineering Design File

.STEP
Free
Rkef500K-2 (Polyfuse) | High-Quality CAD Model
MACHINE DESIGN · RKEF500K-2

Rkef500K-2 (Polyfuse) | High-Quality CAD Model

.STEP