3D Printing CAD Models

Browse CAD models suited for 3D printing workflows. Preview online and download STL, STEP and mesh files for slicers and print-ready projects.

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
556 models2D drawings
Sort by:
Free
Esp32 Cam Enclosure For Door Visor 1 | 3D CAD Engineering Model
3D PRINTING · ESP32 CAM ENCLOSURE

Esp32 Cam Enclosure For Door Visor 1 | 3D CAD Engineering Model

.STEP
Free
Printer Ups Table 1 | 3D CAD Engineering Model
3D PRINTING · PRINTER UPS TABLE 1

Printer Ups Table 1 | 3D CAD Engineering Model

.STEP
Free
Retekes V115 Case 1 | 3D CAD Engineering Model
3D PRINTING · RETEKES V115 CASE

Retekes V115 Case 1 | 3D CAD Engineering Model

.STEP
Free
Portable Tri Led 1 | 3D CAD Engineering Model
3D PRINTING · PORTABLE TRI LED 1

Portable Tri Led 1 | 3D CAD Engineering Model

.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
Viparspectra P1000 1 | 3D CAD Engineering Model
3D PRINTING · VIPARSPECTRA P1000

Viparspectra P1000 1 | 3D CAD Engineering Model

.STEP
Free
Case For Dc 590 1 | 3D CAD Engineering Model
3D PRINTING · CASE FOR DC 590 1

Case For Dc 590 1 | 3D CAD Engineering Model

.STEP
Free
Case For 7Inch Display 1 | 3D CAD Engineering Model
3D PRINTING · CASE FOR 7INCH DISPLAY 1

Case For 7Inch Display 1 | 3D CAD Engineering Model

.STEP
Free
Vent V2 Dot 0 | 3D CAD Engineering Model
3D PRINTING · VENT V2 DOT 0

Vent V2 Dot 0 | 3D CAD Engineering Model

.STEP
Free
Rubber Duckie | 3D CAD Engineering Model
3D PRINTING · RUBBER DUCKIE

Rubber Duckie | 3D CAD Engineering Model

.STEP
Free
Magnetic Storm 1 | 3D CAD Engineering Model
3D PRINTING · MAGNETIC STORM 1

Magnetic Storm 1 | 3D CAD Engineering Model

.STEP
Free
One Of Seven | 3D CAD Engineering Model
3D PRINTING · ONE OF SEVEN

One Of Seven | 3D CAD Engineering Model

.STEP
Free
Asian Inspired Cannon Barrel | 3D CAD Engineering Model
3D PRINTING · CANNON BARREL

Asian Inspired Cannon Barrel | 3D CAD Engineering Model

.STEP
Free
20 Foot Shark | 3D CAD Engineering Model
3D PRINTING · 20 FOOT SHARK

20 Foot Shark | 3D CAD Engineering Model

.STEP
Free
Universal Rod Holder 1 | 3D CAD Engineering Model
3D PRINTING · UNIVERSAL ROD HOLDER 1

Universal Rod Holder 1 | 3D CAD Engineering Model

.STEP
Free
Minimal Bamboo Rod Holder 1 | 3D CAD Engineering Model
3D PRINTING · MINIMAL BAMBOO ROD HOLDER 1

Minimal Bamboo Rod Holder 1 | 3D CAD Engineering Model

.STEP
Free
Rodholder 1 | 3D CAD Engineering Model
3D PRINTING · RODHOLDER 1

Rodholder 1 | 3D CAD Engineering Model

.STEP
Free
Star 2500 1 | 3D CAD Engineering Model
3D PRINTING · STAR 2500 1

Star 2500 1 | 3D CAD Engineering Model

.STEP
Free
Old Trunk 1 | 3D CAD Engineering Model
3D PRINTING · OLD TRUNK 1

Old Trunk 1 | 3D CAD Engineering Model

.STEP
Free
Weight Mold For Diving 1 75Kg 1 | 3D CAD Engineering Model
3D PRINTING · WEIGHT MOLD

Weight Mold For Diving 1 75Kg 1 | 3D CAD Engineering Model

.STEP
Free
Vent 16 Mm 1 | 3D CAD Engineering Model
3D PRINTING · VENT16MM1

Vent 16 Mm 1 | 3D CAD Engineering Model

.STEP
Free
High Tech Plastics Bolster Elite 1 | 3D CAD Engineering Model
3D PRINTING · HIGH TECH PLASTICS BOLSTER ELITE 1

High Tech Plastics Bolster Elite 1 | 3D CAD Engineering Model

.STEP
Free
Gopro Mask Mount 1 | 3D CAD Engineering Model
3D PRINTING · GOPRO MASK MOUNT 1

Gopro Mask Mount 1 | 3D CAD Engineering Model

.STEP