BIGTREETECH SKR 3 EZ

Mainboard compatible with EZ drivers

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Product information & technical details

Manufacturer: BIGTREETECH
Product type: Mainboards

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