hydrodynamics CAD Models

Browse hydrodynamics 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
Sort by:
Free
Thistle Dinghy Hull | High-Quality CAD Model
MARINE · THISTLE DINGHY HULL

Thistle Dinghy Hull | High-Quality CAD Model

.STEP
Free
Marine Propeller | High-Quality CAD Model
MARINE · MARINE PROPELLER

Marine Propeller | High-Quality CAD Model

.STEP
Free
Biomimetic Marine Propeller | High-Quality CAD Model
MARINE · BIOMIMETIC

Biomimetic Marine Propeller | High-Quality CAD Model

.STEP
Free
Biomimetic Marine Propeller - Standard Mechanical Component
MARINE · BIOMIMETIC

Biomimetic Marine Propeller - Standard Mechanical Component

.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
Npl Round Bilge Model - Downloadable CAD Representation
MARINE · NPL ROUND BILGE MODEL

Npl Round Bilge Model - Downloadable CAD Representation

.STEP
Free
Wigley Hull | 3D Engineering Design File
MARINE · WIGLEY HULL

Wigley Hull | 3D Engineering Design File

.STEP
Free
Kriso-Kvlcc2 Hull - Downloadable CAD Representation
MARINE · KRISO-KVLCC2

Kriso-Kvlcc2 Hull - Downloadable CAD Representation

.STEP
Free
Yacht Propeller - Downloadable CAD Representation
MARINE · YACHT PROPELLER

Yacht Propeller - Downloadable CAD Representation

.STEP
Free
Seascooter | High-Quality CAD Model
MARINE · SEASCOOTER

Seascooter | High-Quality CAD Model

.STEP
Free
Propeller 3-Blade | High-Quality CAD Model
MARINE · PROPELLER 3-BLADE

Propeller 3-Blade | High-Quality CAD Model

.STEP
Free
Boat Propeller | 3D Engineering Design File
MARINE · BOAT PROPELLER

Boat Propeller | 3D Engineering Design File

.STEP
Free
Tchalba Kayak - Downloadable CAD Representation
MARINE · TCHALBA KAYAK

Tchalba Kayak - Downloadable CAD Representation

.STEP
Free
Saithe Fish (For Cfd) | 3D Engineering Design File
MARINE · SAITHE FISH

Saithe Fish (For Cfd) | 3D Engineering Design File

.STEP
Free
Windsurf Centerboard V2 | High-Quality CAD Model
MARINE · WINDSURF CENTERBOARD V2

Windsurf Centerboard V2 | High-Quality CAD Model

.STEP
Free
3 Blade Propeller - Downloadable CAD Representation
MARINE · 3 BLADE PROPELLER

3 Blade Propeller - Downloadable CAD Representation

.STEP
Free
Pontoon And Bucket - Downloadable CAD Representation
MARINE · PONTOON

Pontoon And Bucket - Downloadable CAD Representation

.STEP
Free
Jet Drive For Rc Boat - Downloadable CAD Representation
MARINE · JET DRIVE

Jet Drive For Rc Boat - Downloadable CAD Representation

.STEP
Free
Four Blade Propeller Subd To Nurbs. | High-Quality CAD Model
MARINE · FOUR BLADE PROPELLER

Four Blade Propeller Subd To Nurbs. | High-Quality CAD Model

.STEP
Free
B-Serie Boat Propeller 5 Blades 05 | High-Quality CAD Model
MARINE · BOAT PROPELLER

B-Serie Boat Propeller 5 Blades 05 | High-Quality CAD Model

.STEP
Free
B-Serie Boat Propeller 5 Blades 06 - Downloadable CAD Representation
MARINE · BOAT PROPELLER

B-Serie Boat Propeller 5 Blades 06 - Downloadable CAD Representation

.STEP
Free
Submarine Propeller - Downloadable CAD Representation
MARINE · SUBMARINE PROPELLER

Submarine Propeller - Downloadable CAD Representation

.STEP
Free
Kvlcc2_Solid | High-Quality CAD Model
MARINE · KVLCC2_SOLID

Kvlcc2_Solid | High-Quality CAD Model

.STEP