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BIGTREETECH SKR 3 User Manual

BIGTREETECH SKR 3
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Shenzhen Big Tree Technology CO.,LTD .
BIG TREE TECH
29 / 39
#define ADVANCED_PAUSE_FEATURE // retraction setting of nozzle park movement
and filament purge distance after print is resumed.
4.3.13 ESP3D
The serial port between ESP8266 and Marlin on the motherboard is UART3
the newest ESP3D firmware can be found at https://github.com/luc-
github/ESP3D ,compile your own binary file and rename to “esp3d.bin”, copy to
the root directory of the sd card, insert into the motherboard and press reset
button. The bootloader will update the firmware to ESP8266 automatically. If
updated successfully, the file will be renamed to ESP3D.CUR

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BIGTREETECH SKR 3 Specifications

General IconGeneral
Frequency480 MHz
Driver InterfaceSPI/UART
Logic Voltage3.3V
Heated Bed Output1
Fan Outputs3
Endstop Inputs6
Stepper Motor Connectors6
USB Port1 x USB Type-C
Display SupportYes
BLTouch ConnectorYes
Dimensions110mm x 85mm
Motor Driver SupportTMC5160, TMC2209
Input Voltage12-24V DC
Operating Voltage12-24V DC
Communication InterfaceUSB, CAN, UART
FirmwareMarlin, Klipper
Heater Output2
Fan Connectors3
Heater Connectors3
SD Card SlotYes
Display ConnectorEXP1, EXP2
Thermistor Inputs5

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