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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
39 / 39
8. FAQ
Q: Max current of heated bed,heater cartridge,fan port?
A：heated bed： 10A continuous，11A instantaneous
heater cartridge： 5.5A continuous，6A instantaneous
Fan port: 1A continuous，1.5A instantaneous
combined current of heated bed,heater cartridge and fan port should not exceed
10A
Q：Can not update firmware with SD card
A：make sure your sd card is formatted to FAT32，firmware file name is
“firmware.bin”, make sure your system is showing file suffix, if suffix is
hided,“firmware.bin”will be shown as“firmware”

Table of Contents

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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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