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.

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English reviews written for BIGTREETECH SKR 3 EZ