E3 RRF Board.
- High performance main control chip:
Packs ARM Cortex-M4 STM32F407VGT6 chip with its main frequency up to 168MHz.
- Power chip:
Adopts AO1284 power chip with the power input of DC 12/24V and maximym output curent up to 4A, greatly reducing power ripple and radiation interference,
- Integrated ESP8266 Wi-Fi module:
ESP3D with Marlin, DWC with RepRap Firmware
- Extensive expansion interfaces:
Reserves the interface of Auto-leveling, MICRO USB, 2CNC fans, RBG lights, power outage recovery, shutdown after printing, filament runout detection.
- Removable fuse:
The anti-reverse design on onboard power supply and removable fuse.
- Adds protection circuit: Adds protection circuit to the thermistor interface
- SD card slot: Uses stable SD card slot
- Strong compatibility:
Serial port touch screen of Bigtreetech and Ender3 original LCD12864 screen, LCD12864 with CR10_STOCKDISPLAY interface.
Marlin and RepRapFirmware.
Ender3 series 3D printers.
- Onboard sensorless homing:
Onboard sensorless homing function by installing the jumpers on the board.
Note: when selecting onboard sensorless homing, the external ENDSTOP can't be used.
- Enhaced heat dissipation:
MOS Tube: The hotbed MOS Tube uses WSK220N04 for larger heat dissipation area
Integrated heatsink: Integrated heatsink is applied for better heat dissipation.
- Onboard TMC2209 and onboard sensorless homing.
- Reserves the interface of PT100 thermocouple.
- Compatible with IDEX 3D printer.
- Appearance size: 100.75x70.25mm.
- Board layer: 4 layers:
- MCU: ARM Cortex-M4 STM32F407VGT6.
- Power input: 12/24V
- Logic voltage: 3.3V.
- Motor driver: UART mode of onboard TMC2209
- Motor driver interface: XM, YM, ZAM, ZBM, EM
- Temperature sensor interface: TH0, THB, 2 channels100K NTC (thermal resistor)
- Dispaly: All serial port touch scressn of Bigtreetech, LCD 12864 screen
- PC communication interface: MICRO USB, easy to plug, communication baud rate 11520.
- Support file: G-code