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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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
10,000+ models2D drawings
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Free
Mutant SOIC8 Package Model for Optocouplers with Enhanced Height
ELECTRICAL · SOIC8

Mutant SOIC8 Package Model for Optocouplers with Enhanced Height

.STEP
Free
IP67 Protective Cap Cover for Industrial Applications
INDUSTRIAL DESIGN · IP67

IP67 Protective Cap Cover for Industrial Applications

.STEP
Free
VL53L0XV2 Laser Distance Sensor 3D Model
ELECTRICAL · VL53L0XV2

VL53L0XV2 Laser Distance Sensor 3D Model

.STEP
Free
E32-900T30D Wireless UART Serial Port Module with SX1276 RF Chip
ELECTRICAL · E32-900T30D

E32-900T30D Wireless UART Serial Port Module with SX1276 RF Chip

.STEP

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Protective Cover for M36x1.5 Threaded Connectors GOST 25930-83
INDUSTRIAL DESIGN · PROTECTIVE COVER

Protective Cover for M36x1.5 Threaded Connectors GOST 25930-83

.STEP
Free
AC Servo Motor with Brake HG-SR202B by Mitsubishi Electric
MACHINE DESIGN · AC SERVO MOTOR

AC Servo Motor with Brake HG-SR202B by Mitsubishi Electric

.STEP
Free
AC Servo Motor HG-SR202 Industrial Drive Component
MACHINE DESIGN · AC SERVO MOTOR

AC Servo Motor HG-SR202 Industrial Drive Component

.STEP
Free
NEO-6M GPS Module with STM32 Microcontroller Integration
ROBOTICS · NEO-6M

NEO-6M GPS Module with STM32 Microcontroller Integration

.STEP
Free
16x2 Character LCD Display with Blue Backlight and White Text
ELECTRICAL · 16X2 LCD DISPLAY

16x2 Character LCD Display with Blue Backlight and White Text

.STEP
Free
ENC28J60 10Mbit Ethernet LAN Module for Microcontrollers
ELECTRICAL · ENC28J60

ENC28J60 10Mbit Ethernet LAN Module for Microcontrollers

.STEP
Free
Fused Relay with Removable Mounting for Battery Box Applications
ELECTRICAL · FUSED RELAY

Fused Relay with Removable Mounting for Battery Box Applications

.STEP
Free
Monty Hacks Engineering Component
MACHINE DESIGN · MONTY HACKS

Monty Hacks Engineering Component

.STEP
Free
DC044 5.5x2.1mm Barrel Jack Connector for PCB Mounting
ELECTRICAL · DC044

DC044 5.5x2.1mm Barrel Jack Connector for PCB Mounting

.STEP
Free
JD-375 XLR Socket Connector for Audio and Electronic Applications
ELECTRICAL · JD-375

JD-375 XLR Socket Connector for Audio and Electronic Applications

.STEP
Free
U-Blox LEA-M8T GPS Timing Module with Castellated Edge Connectors
ELECTRICAL · U-BLOX LEA-M8T

U-Blox LEA-M8T GPS Timing Module with Castellated Edge Connectors

.STEP
Free
EMG Data Logger and Analyzer PCB and Schematic Design
ELECTRICAL · EMG DATA LOGGER

EMG Data Logger and Analyzer PCB and Schematic Design

.STEP
Free
Compact Mini Voltmeter 0-30V with Three-Digit Display
ELECTRICAL · VOLTMETER

Compact Mini Voltmeter 0-30V with Three-Digit Display

.STEP
Free
Gasket BINDER 04 0722 000 Industrial Seal Component
MACHINE DESIGN · GASKET BINDER 04 0722 000

Gasket BINDER 04 0722 000 Industrial Seal Component

.STEP
Free
Planetary Gear AC Servo Motor with Brake HK-KR43BG1_12 and Gear Ratio 12
MACHINE DESIGN · PLANETARY GEAR

Planetary Gear AC Servo Motor with Brake HK-KR43BG1_12 and Gear Ratio 12

.STEP
Free
Planetary Gear AC Servo Motor HK-KR43G1_12 with Gear Ratio 12
MACHINE DESIGN · PLANETARY GEAR

Planetary Gear AC Servo Motor HK-KR43G1_12 with Gear Ratio 12

.STEP
Free
Sunon Exhaust Fan 0.14A Industrial Cooling Component
INDUSTRIAL DESIGN · SUNON EXHAUST FAN

Sunon Exhaust Fan 0.14A Industrial Cooling Component

.STEP
Free
22mm Mushroom Head Push Button Switch Model
ELECTRICAL · 22MM MUSHROOM HEAD PUSH BUTTON SWITCH

22mm Mushroom Head Push Button Switch Model

.STEP