BIGTREETECH SKR 3 EZ

Mainboard compatible with EZ drivers

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Product information & technical details

Description

BIGTREETECH SKR 3 EZ is a high-performance motherboard compatible with the new EZ drivers. The motor driver voltage of the new SKR 3 EZ can also be adjusted from 24V to 48 volts using jumpers.

The motherboard is compatible with Klipper, RepRap and Marlin open-source software.

480Mhz ARM Cortex-M7

BIGTREETECH SKR 3 EZ uses a 32-bit ARM Cortex-M7 series STM32H743VI chip with a core frequency of 480MHz, providing enough performance to handle even the most demanding user interfaces while enabling stutter-free printing.

Higher Motor Driver Voltage - Faster print speeds

The motor driver voltage of up to 48V can be set using jumpers. However, 48V is only supported when using TMC5160 Pro drivers.


SKR 3 EZ compared to SKR 3

Function SKR 3 EZ SKR 3

Core frequency

480MHz 480MHz
Output current 5A 5A
Fan interfaces 3 CNC fans, 3 normal fans 3 CNC fans., 2 normal fans
Motor voltage DC12V-DC48V DC12V-DC24V
Supported Drivers

EZ5160/2209/2208/2225/2226/2130/6609

TMC5160/2209/2225/2226/2208/2130

TMC5160/2209/2225/2226/2208/2130/ST820

LV8729, DRV8825, A4988, etc.

EZ driver support Yes No
Optional CNC fan voltage Yes Yes


Product Specifications

Product size 109.7x98mm
Installation size 102x76mm
Processor chip ARM Cortex-M7 CPU STM32H743VI
EEPROM 24C32 32-Kbit

Input voltage

DC12V-DC24V
Motor voltage DC12V-DC48V

Logic voltage

DC 3.3V
Firmware Marlin, Klipper, RepRap
WiFi interfaces

ESP-12S, ESP-07S, ESP32

Fan interfaces 3 CNC fans, 3 normal fans,

Optional CNC fan voltage

Extension interfaces

BLTouch (servos, probe), PS-ON, PWR-DET, Fil-DET, CAN FD
Motor driver EZ5160, EZ2209, EZ2208, EZ2225, EZ2226, EZ2130, EZ6609, TMC5160, TMC2209, TMC2225, TMC2226, TMC2208, TMC2130, etc.

Driver working modes

SPI, UART, STEP/DIR
Motor driver outputs X, Y, Z (Dual Z-axis), E0, E1, five-way
Heating interfaces Heated bed (HB), heating cable (E0, E1)
Temperature sensor interface 1 100K NTC, 2 100K NTC, PT1000 optional
PC interface USB
File format G code
3D printer setup Cartesian, Delta, Kossel, Ultimaker, CoreXY
Recommended software Cura, Simplify3D, Pronterface, Repetier-host, Makerware
Screen Serial touch screen, SPI touch screen, LCD display

An image with the connections and the dimensions of the mainboard can be found in the pictures.

Accessories

English reviews written for BIGTREETECH SKR 3 EZ

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