BIGTREETECH E3 RRF V1.1 E3 BIQU IDEX Kit for Ender 3 Series – Upgrade Your 3D Printing Experience

Tutorial on how to convert Ender 3 to IDEX using this kit
https://github.com/smith3d/3DPrinterFirmwareList/blob/main/Ender_3%20IDEX%20upgrade%20kit%20list%20manual.pdf

BIGTREETECH E3 RRF IDEX V1.0 has 2- channel stepper motor， 2- channel CNC fan, 1 channel always-on fan, 1 channel NTC 100K, 1 channel PT100, 1 channel endstop, 1 channel filament detection, and 1 expansion port. BIGTREETECH E3 RRF IDEX V1.0 is controlled by E3 RRF V1.1 and it can enable an independent dual extruder on Ender3. Users can also DIY base on personal needs.

1. Packs ARM Cortex-M4 STM32F407VGT6 chip with its main frequency up to 168MHz

2. Adopts AO1284 power chip with the power input of DC 12/24V and maximum output current up to 4A, greatly reducing power ripple and radiation interference

3. Integrated ESP8266 Wi-Fi module: ESP3D with Marlin & DWC with RepRapFirmware

4. Reserves the interface of Auto-leveling, MICRO USB, 2 CNC fans, RGB lights, power outage recovery, shutdown after printing, filament runout detection

5. Safety design, better protection