Machine design CAD Models

Explore Machine design CAD models for engineering workflows. Preview online and download STEP/STP, IGES, STL and more. Filter by tags, 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
5644 models2D drawings
Sort by:
Free
Mounting Bracket Design Using Autodesk Inventor Sheet Metal Basics
MACHINE DESIGN · MOUNTING BRACKET

Mounting Bracket Design Using Autodesk Inventor Sheet Metal Basics

.STEP
Free
Comprehensive Autodesk Inventor 3D Drawing Tutorials and Practice Guides
MACHINE DESIGN · AUTODESK INVENTOR

Comprehensive Autodesk Inventor 3D Drawing Tutorials and Practice Guides

.STEP
Free
Airless ISO20 Automatic Tool Changer Concept for CNC Machines
MACHINE DESIGN · ISO20

Airless ISO20 Automatic Tool Changer Concept for CNC Machines

.STEP
Free
Automatic Peristaltic Pump Control System for Hydroponics
MACHINE DESIGN · PERISTALTIC PUMP

Automatic Peristaltic Pump Control System for Hydroponics

.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
Thetford Triplex 1 Assembly Model
MACHINE DESIGN · THETFORD TRIPLEX 1

Thetford Triplex 1 Assembly Model

.STEP
Free
Gear Cleaning Machine Design for Hydraulic System Maintenance
MACHINE DESIGN · GEAR CLEANING MACHINE

Gear Cleaning Machine Design for Hydraulic System Maintenance

.STEP
Free
Simple Pulley and Belt Drive Mechanism for Cost-Effective Prototyping
MACHINE DESIGN · PULLEY

Simple Pulley and Belt Drive Mechanism for Cost-Effective Prototyping

.STEP
Free
Compact Scissor Lift Platform with Lead Screw Drive
MACHINE DESIGN · SCISSOR LIFT

Compact Scissor Lift Platform with Lead Screw Drive

.STEP
Free
Single Start Linear Actuator with Nema 17 Stepper Motor
MACHINE DESIGN · SINGLE START LINEAR ACTUATOR

Single Start Linear Actuator with Nema 17 Stepper Motor

.STEP
Free
3D Model of Angle Clamp - Early 3D Design Example
MACHINE DESIGN · ANGLE CLAMP

3D Model of Angle Clamp - Early 3D Design Example

.STEP
Free
Precision Drilling Jig Assembly for Efficient Production
MACHINE DESIGN · DRILLING JIG

Precision Drilling Jig Assembly for Efficient Production

.STEP
Free
NALCNC-PRINT Vertical Clamping Workbench for CNC Milling Machines
MACHINE DESIGN · NALCNC-PRINT

NALCNC-PRINT Vertical Clamping Workbench for CNC Milling Machines

.STEP
Free
Industrial Machine Vise 3D Assembly Model for Manufacturing Applications
MACHINE DESIGN · MACHINE VISE

Industrial Machine Vise 3D Assembly Model for Manufacturing Applications

.STEP
Free
High-Quality Clamp Model for Engineering and Design
MACHINE DESIGN · ENGINEERING

High-Quality Clamp Model for Engineering and Design

.STEP
Free
High-Performance Motor Developed by Ukrainian Engineers
MACHINE DESIGN · HIGH-PERFORMANCE MOTOR

High-Performance Motor Developed by Ukrainian Engineers

.STEP
Free
Spiral Flexure Bearing for Linear Motors in Cryocoolers
MACHINE DESIGN · SPIRAL FLEXURE BEARING

Spiral Flexure Bearing for Linear Motors in Cryocoolers

.STEP
Free
High Power 3-Phase Electric Motor CAD Model with 50mm Shaft Diameter
MACHINE DESIGN · 50MM SHAFT DIAMETER

High Power 3-Phase Electric Motor CAD Model with 50mm Shaft Diameter

.STEP
Free
Three-Phase Electric Motor for CNC Machines
MACHINE DESIGN · THREE-PHASE ELECTRIC MOTOR

Three-Phase Electric Motor for CNC Machines

.STEP
Free
3-Phase Electric Motor 1.5kW for Industrial Applications
MACHINE DESIGN · 1.5KW

3-Phase Electric Motor 1.5kW for Industrial Applications

.STEP
Free
Hydraulic Oil Station with Gear Pump and Reservoir
MACHINE DESIGN · HYDRAULIC OIL STATION

Hydraulic Oil Station with Gear Pump and Reservoir

.STEP
Free
Aeromax 3-Phase Electric Motor AE 71M1-2
MACHINE DESIGN · AEROMAX AE 71M1-2

Aeromax 3-Phase Electric Motor AE 71M1-2

.STEP
Free
Homemade Belt Grinder 3D Model with Metal Plasma Cut Parts
MACHINE DESIGN · BELT GRINDER

Homemade Belt Grinder 3D Model with Metal Plasma Cut Parts

.STEP