prototype CAD Models in Machine design

Browse prototype 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
494 models2D drawings
Sort by:
Free
2008 Design Mania | 3D Engineering Design File
MACHINE DESIGN · 2008 DESIGN MANIA

2008 Design Mania | 3D Engineering Design File

.STEP
Free
Dispenser | 3D Engineering Design File
MACHINE DESIGN · DISPENSER

Dispenser | 3D Engineering Design File

.STEP
Free
Four Super Pose - Downloadable CAD Representation
MACHINE DESIGN · FOUR SUPER POSE

Four Super Pose - Downloadable CAD Representation

.STEP
Free
Toolcraft Spring (Planeta G30135) | 3D Engineering Design File
MACHINE DESIGN · TOOLCRAFT SPRING

Toolcraft Spring (Planeta G30135) | 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
Guarda Y Cortina De Luz | 3D Engineering Design File
MACHINE DESIGN · GUARDA Y CORTINA DE LUZ

Guarda Y Cortina De Luz | 3D Engineering Design File

.STEP
Free
Milwaukee Packout Handle | 3D Engineering Design File
MACHINE DESIGN · MILWAUKEE PACKOUT HANDLE

Milwaukee Packout Handle | 3D Engineering Design File

.STEP
Free
Dispersora De Pintura - Standard Mechanical Component
MACHINE DESIGN · DISPERSORA DE PINTURA

Dispersora De Pintura - Standard Mechanical Component

.STEP
Free
Corsair 7000D | High-Quality CAD Model
MACHINE DESIGN · CORSAIR 7000D

Corsair 7000D | High-Quality CAD Model

.STEP
Free
Ens160+Aht21 | 3D Engineering Design File
MACHINE DESIGN · ENS160

Ens160+Aht21 | 3D Engineering Design File

.STEP
Free
Nice!Nano V2 - Standard Mechanical Component
MACHINE DESIGN · NICE!NANO V2

Nice!Nano V2 - Standard Mechanical Component

.STEP
Free
Rm85-2011-25 | 3D Engineering Design File
MACHINE DESIGN · RM85-2011-25

Rm85-2011-25 | 3D Engineering Design File

.STEP
Free
Lamp - Standard Mechanical Component
MACHINE DESIGN · LAMP

Lamp - Standard Mechanical Component

.STEP
Free
Cdisk-7.5-7-3.5 - Standard Mechanical Component
MACHINE DESIGN · CDISK-7.5-7-3.5

Cdisk-7.5-7-3.5 - Standard Mechanical Component

.STEP
Free
Rm85-2011-25-1024 - Standard Mechanical Component
MACHINE DESIGN · RM85-2011-25-1024

Rm85-2011-25-1024 - Standard Mechanical Component

.STEP
Free
Fuse Pr-2 | High-Quality CAD Model
MACHINE DESIGN · FUSE PR-2

Fuse Pr-2 | High-Quality CAD Model

.STEP
Free
Ts-1233 | High-Quality CAD Model
MACHINE DESIGN · TS-1233

Ts-1233 | High-Quality CAD Model

.STEP
Free
Diy Searchlight - Downloadable CAD Representation
MACHINE DESIGN · SEARCHLIGHT

Diy Searchlight - Downloadable CAD Representation

.STEP
Free
Linear Potentiometer | High-Quality CAD Model
MACHINE DESIGN · LINEAR POTENTIOMETER

Linear Potentiometer | High-Quality CAD Model

.STEP
Free
101-63-Ls06 - Downloadable CAD Representation
MACHINE DESIGN · 101-63-LS06

101-63-Ls06 - Downloadable CAD Representation

.STEP
Free
W1209Wk Mini | High-Quality CAD Model
MACHINE DESIGN · W1209WK MINI

W1209Wk Mini | High-Quality CAD Model

.STEP
Free
Bm630-Sn | High-Quality CAD Model
MACHINE DESIGN · BM630-SN

Bm630-Sn | High-Quality CAD Model

.STEP
Free
Fan | High-Quality CAD Model
MACHINE DESIGN · FAN

Fan | High-Quality CAD Model

.STEP