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.

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Curated systems with verified mating parts — download the whole assembly at once.

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MOTION KIT

NEMA 17 Motion Kit

Motor, coupler, shafts & mounts for tabletop CNC, 3D printer & robotics builds.

5 partspairs verified
MOTION KIT

NEMA 23 Motion Kit

Heavier stepper, coupler, shafts & brackets for larger CNC routers & automation rigs.

5 partspairs verified
HARDWARE KIT

M5 Hardware Kit

Bolts, nuts, washers & standoffs sized for NEMA mounts, extrusions & plate assemblies.

8 partspairs verified
10,000+ models2D drawings
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Free
3D Models of Acoustic, Electric, and Artemis 30STM Guitars
INDUSTRIAL DESIGN · GUITAR

3D Models of Acoustic, Electric, and Artemis 30STM Guitars

.STEP
Free
DIN 6926 M6 Hexagon Nut Technical Model
MACHINE DESIGN · DIN 6926

DIN 6926 M6 Hexagon Nut Technical Model

.STEP
Free
Precision Dimensioned Component for Engineering Applications
MACHINE DESIGN · PRECISION COMPONENT

Precision Dimensioned Component for Engineering Applications

.STEP
Free
Aluminum V-Slot Construction Profile 20x20mm for Industrial Applications
INDUSTRIAL DESIGN · ALUMINUM V-SLOT

Aluminum V-Slot Construction Profile 20x20mm for Industrial Applications

.STEP
Free
Aluminum V-Slot Construction Profile 20x40mm for Industrial Applications
INDUSTRIAL DESIGN · ALUMINUM V-SLOT

Aluminum V-Slot Construction Profile 20x40mm for Industrial Applications

.STEP
Free
Aluminum U Profile Stand for Fanuc Delta M-1iA1H Robot
ROBOTICS · ALUMINUM U PROFILE

Aluminum U Profile Stand for Fanuc Delta M-1iA1H Robot

.STEP
Free
Precision 3D Model of Exercise Equipment for Design Study
INDUSTRIAL DESIGN · EXERCISE EQUIPMENT

Precision 3D Model of Exercise Equipment for Design Study

.STEP
Free
Industrial Bench Seat Design for Public and Commercial Spaces
ARCHITECTURE · BENCH SEAT

Industrial Bench Seat Design for Public and Commercial Spaces

.STEP
Free
Industrial Roller Conveyor System
INDUSTRIAL DESIGN · ROLLER CONVEYOR

Industrial Roller Conveyor System

.STEP
Free
Industrial Belt Conveyor System
INDUSTRIAL DESIGN · BELT CONVEYOR

Industrial Belt Conveyor System

.STEP
Free
Steel Structure for Factory Building Design
CONSTRUCTION · STEEL STRUCTURE

Steel Structure for Factory Building Design

.STEP
Free
Configurable Open and Closed Type Mechanical Component
MACHINE DESIGN · MECHANICAL COMPONENT

Configurable Open and Closed Type Mechanical Component

.STEP
Free
Hydraulic Drive Forklift Bucket for Material Handling
INDUSTRIAL DESIGN · HYDRAULIC DRIVE

Hydraulic Drive Forklift Bucket for Material Handling

.STEP
Free
M22x1.5 Stud Bolt with Cylinder Head, 97.5 mm Length
MACHINE DESIGN · M22X1.5

M22x1.5 Stud Bolt with Cylinder Head, 97.5 mm Length

.STEP
Free
Industrial Bagging System with Dual Outlet Screw Conveyors
INDUSTRIAL DESIGN · INDUSTRIAL BAGGING SYSTEM

Industrial Bagging System with Dual Outlet Screw Conveyors

.STEP
Free
Steel Platform Structural Component
CONSTRUCTION · STEEL PLATFORM

Steel Platform Structural Component

.STEP
Free
3 Meter Portable Foldable Cantilever Ladder for Maintenance
CONSTRUCTION · CANTILEVER LADDER

3 Meter Portable Foldable Cantilever Ladder for Maintenance

.STEP
Free
1/4 Inch DN8 Ball Valve with Weld Ends
INDUSTRIAL DESIGN · BALL VALVE

1/4 Inch DN8 Ball Valve with Weld Ends

.STEP
Free
Heavy Duty Ball Bearing Door Hinge with Satin Nickel Finish
INDUSTRIAL DESIGN · HEAVY DUTY DOOR HINGE

Heavy Duty Ball Bearing Door Hinge with Satin Nickel Finish

.STEP
Free
Sheet Metal Storage Rack CAD Model
INDUSTRIAL DESIGN · SHEET METAL

Sheet Metal Storage Rack CAD Model

.STEP
Free
Wooden Attic Ladder Design for Country House
ARCHITECTURE · WOODEN ATTIC LADDER

Wooden Attic Ladder Design for Country House

.STEP
Free
3.5 Meter Stainless Steel Conveyor with PVC Rollers
INDUSTRIAL DESIGN · 3.5 METER CONVEYOR

3.5 Meter Stainless Steel Conveyor with PVC Rollers

.STEP