Engineering CAD Design Library

Browse quality-checked 3D CAD models for engineering, product design, prototyping and manufacturing. Preview models online and download files in STEP, STP, IGES, STL, OBJ, PLY, DWG, DXF and more.

All3D PrintingAerospaceArchitectureAutomotiveAviationChemicalConstructionElectricalEnergy And PowerIndustrial DesignJewelleryMachine designMarineMedicalMiscellaneousRobotics
10,000+ models2D drawings
Sort by:
Free
2Edgv 5 08 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · 2EDGV 5 08 TERMINAL BLOCKS

2Edgv 5 08 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Fpv 4 9 6 1 20 Dbi Rhcp 1 | 3D CAD Engineering Model
AVIATION · FPV ANTENNA

Fpv 4 9 6 1 20 Dbi Rhcp 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
2Edgr 5 08 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · 2EDGR 5 08 TERMINAL BLOCKS

2Edgr 5 08 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
2Edgrc 5 08 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · 2EDGRC 5 08 TERMINAL BLOCKS

2Edgrc 5 08 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview

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
Spektrum Avian 60Amp Esc 1 | 3D CAD Engineering Model
ROBOTICS · SPEKTRUM AVIAN 60AMP ESC

Spektrum Avian 60Amp Esc 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Rh T21 1 | 3D CAD Engineering Model
MACHINE DESIGN · RH T21 1

Rh T21 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview

Browse CAD models by file format

STEP CAD modelsSTL CAD modelsIGES CAD modelsOBJ 3D modelsPLY modelsDWG drawingsDXF drawings

Browse CAD models by category

Automotive CAD modelsAerospace CAD modelsRobotics CAD models3D printing CAD modelsArchitecture CAD modelsIndustrial design CAD modelsMedical CAD modelsElectrical CAD models
Free
Ydlidar T Mini Pro T Mini Plus 1 | 3D CAD Engineering Model
ROBOTICS · YDLIDAR T MINI PRO

Ydlidar T Mini Pro T Mini Plus 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Bottom 2 | 3D CAD Engineering Model
MACHINE DESIGN · BOTTOM 2

Bottom 2 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
15Edgvc 3 81 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · 15EDGVC 3 81

15Edgvc 3 81 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
15Edgrc 3 81 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · 15EDGRC 3 81

15Edgrc 3 81 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
15Edgvc 3 5 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · 15EDGVC 3 5 TERMINAL BLOCKS

15Edgvc 3 5 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
15Edgrc 3 5 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · 15EDGRC

15Edgrc 3 5 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Perforated Pcb 9X15Cm 1 | 3D CAD Engineering Model
ELECTRICAL · PERFORATED PCB

Perforated Pcb 9X15Cm 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Jst Ghr V S 1 | 3D CAD Engineering Model
ELECTRICAL · JST GHR V S 1

Jst Ghr V S 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Dg308 2 54 Terminal Blocks 1 | 3D CAD Engineering Model
ELECTRICAL · DG308

Dg308 2 54 Terminal Blocks 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Potentiometer Knob 10 | 3D CAD Engineering Model
ELECTRICAL · POTENTIOMETER KNOB 10

Potentiometer Knob 10 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Ht Dc Geared Motor 1 | 3D CAD Engineering Model
MACHINE DESIGN · HT DC GEARED MOTOR 1

Ht Dc Geared Motor 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Weipu Wk20Z 1 | 3D CAD Engineering Model
ELECTRICAL · WEIPU WK20Z 1

Weipu Wk20Z 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Cyber Bike Tail Light Model 1 | 3D CAD Engineering Model
AUTOMOTIVE · CYBER BIKE TAIL LIGHT MODEL 1

Cyber Bike Tail Light Model 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Electric Contactor Jst 4 Pins 1 | 3D CAD Engineering Model
ELECTRICAL · ELECTRIC CONTACTOR

Electric Contactor Jst 4 Pins 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
Fairino Screwdriver Robot 1 | 3D CAD Engineering Model
ROBOTICS · FAIRINO SCREWDRIVER ROBOT 1

Fairino Screwdriver Robot 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
Free
3 5 Jack Solder Female 1 | 3D CAD Engineering Model
ELECTRICAL · 3.5MM JACK

3 5 Jack Solder Female 1 | 3D CAD Engineering Model

.STEP
Open STEP file viewerConvert STEP to STL
<100 downloads
Preview
prev...230231232233234...next
Marathon OS logoThe CAD marketplace for modern teams
HomeAbout usWhy us?Contact us
Tools3D to 2D Drawing Pipeline3D CAD Viewer3D CAD File Converter
Library
Hire CAD Designers
Production-ready in 24 hrs
👤
→
2D Library
Ask a question
Privacy Policy|Terms of Service|Refund Policy|
© Marathon 2025 All Rights Reserved