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
Air Combination Spacer Attachment CAD Model
MACHINE DESIGN · AIR COMBINATION SPACER ATTACHMENT 1

Air Combination Spacer Attachment CAD Model

.STEP
Free
WU Embossed Ubar Lower with Ambi Selector Switch Fitting
MACHINE DESIGN · TEST RUN WU EMBOSSED UBAR LOWER 1

WU Embossed Ubar Lower with Ambi Selector Switch Fitting

.STEP
Free
Set of 5 Insertion Tools for Heat-Sert Nuts Compatible with Solder Irons
MACHINE DESIGN · INSERTION TOOLS

Set of 5 Insertion Tools for Heat-Sert Nuts Compatible with Solder Irons

.STEP
Free
ER 32 Collet Holder - Precision Tool Accessory
MACHINE DESIGN · HOLDER FOR COLLET ER 32 1

ER 32 Collet Holder - Precision Tool Accessory

.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
Machinery Design and Production Line Improvement Services
MACHINE DESIGN · STEP42 STP 43D2033 01 1

Machinery Design and Production Line Improvement Services

.STEP
Free
3D Model of a Cannon Designed with CAD Software
MACHINE DESIGN · CANNONE 2

3D Model of a Cannon Designed with CAD Software

.STEP
Free
Crown Chevron Gear Model for Mechanical Design
MACHINE DESIGN · CROWN CHEVRON GEAR 1

Crown Chevron Gear Model for Mechanical Design

.STEP
Free
High-Quality Pulley CAD Model for Mechanical Design
MACHINE DESIGN · PULLY 56

High-Quality Pulley CAD Model for Mechanical Design

.STEP
Free
VAZ 2109-3730610-10 Component CAD Model
MACHINE DESIGN · 2109 3730610 10 1

VAZ 2109-3730610-10 Component CAD Model

.STEP
Free
Durable Lever Switch for Planetary Mixers Replacement
MACHINE DESIGN · LEVER SWITCH

Durable Lever Switch for Planetary Mixers Replacement

.STEP
Free
High-Quality Universal Joints for Mechanical Applications
MACHINE DESIGN · UNIVERSAL JOINT

High-Quality Universal Joints for Mechanical Applications

.STEP
Free
Plastic Wing Nut Model Compatible with M6, M8, M10 Threads
MACHINE DESIGN · WING NUT 2

Plastic Wing Nut Model Compatible with M6, M8, M10 Threads

.STEP
Free
High-Quality Rod End Bearing for Mechanical Applications
MACHINE DESIGN · ROD END BEARING 4

High-Quality Rod End Bearing for Mechanical Applications

.STEP
Free
Spoked Handwheels for Industrial Applications
MACHINE DESIGN · SPOKED HANDWHEELS

Spoked Handwheels for Industrial Applications

.STEP
Free
High-Precision Linear Guide for Advanced Machinery
MACHINE DESIGN · LINEAR GUIDE 25

High-Precision Linear Guide for Advanced Machinery

.STEP
Free
Free Roller Conveyor with Exit Ramp
MACHINE DESIGN · TRANSPORTADOR DE ROLETES LIVRES 1

Free Roller Conveyor with Exit Ramp

.STEP
Free
Bosch FSN OFA Guide Bushing Improvement Part 2601035011
MACHINE DESIGN · BOSCH FSN OFA GUIDE BUSHING

Bosch FSN OFA Guide Bushing Improvement Part 2601035011

.STEP
Free
4 POM Wheel Gantry CAD Model for Mechanical Design
MACHINE DESIGN · 4 WHEEL GANTRY

4 POM Wheel Gantry CAD Model for Mechanical Design

.STEP
Free
HTD 3M Timing Belt Pulleys - Hubbed and Hubless Variants
MACHINE DESIGN · HTD 3M

HTD 3M Timing Belt Pulleys - Hubbed and Hubless Variants

.STEP
Free
AAP 01 USW Kit for Ruger MK4 - Upper Assembly Upgrade
MACHINE DESIGN · AAP 01 USW KIT 1

AAP 01 USW Kit for Ruger MK4 - Upper Assembly Upgrade

.STEP
Free
62T Timing Pulley Gear with Cover - Precision Mechanical Component
MACHINE DESIGN · TIMING PULLEY

62T Timing Pulley Gear with Cover - Precision Mechanical Component

.STEP
Free
Nema 14 Bipolar Stepper Motor for CNC Applications
MACHINE DESIGN · 14HS13 0804S 1

Nema 14 Bipolar Stepper Motor for CNC Applications

.STEP