FDM 3D printer motherbords based on STM32F407VG/STM32F103RE This projects contains design of motherbords for FDM 3d printers. Where 3 variants of its:

1. Mobula Ray. This motherbords based on STM32F407VG microcontroller. Motherbords contains:

• 6 stepper motors drivers TMC2224 (same as TMC2208) controlled by UART. Microsteps, stepper are current controlled by firmware.
• 6 PWM output - Heatbed, 3 x heaters, 2 controlled fans
• 4 temperature inputs
• 6 inputs for XMIN, XMAX, YMIN, YMAX, ZMIN, ZMAX
• 3 inputs for filament detectors
• BlTouch connector
• onboard WiFi
• connector for external GSM module
• connectors SPI/I2C/UART interfaces
• EXT1/EXT2 connectrs for displays/external SD card
• SWD connector
• USB-B
• micro SD
• switch after end of print output
• connectors for 9 programmable pins
• board size 150 x 120 mm
  Project page on easyeda.com https://easyeda.com/mmaygli/mid-bro

2. Manta Ray. This motherbords based on STM32F407VG microcontroller. Has two variants. Variant A has common power suplay for heaters/fans and drivers. Variant B has separate connectors for heaters and motor drivers. Motherbords contains:

• Connectrs for 6 stepper motors compatible with A4988 (A4988, DRV8825, TMC2100, TMC2130, TMC2208, etc).
• 6 PWM output - Heatbed, 3 x heaters, 2 controlled fans
• 4 temperature inputs
• 6 inputs for XMIN, XMAX, YMIN, YMAX, ZMIN, ZMAX
• 3 inputs for filament detectors
• BlTouch connector
• onboard WiFi
• connector for external GSM module
• connectors SPI/I2C/UART interfaces
• EXT1/EXT2 connectrs for displays/external SD card
• SWD connector
• USB-B
• micro SD
• switch after end of print output
• connectors for 13 programmable pins
• board size 150 x 120 mm
  Project pages on easyeda.com: https://easyeda.com/mmaygli/test3d, https://easyeda.com/mmaygli/bigbro-external-drivers-common-power

1. Sting Ray. This motherbords based on STM32F103RE microcontroller.
   Variant B has separate connectors for heaters and motor drivers. Motherbords contains:

• Connectrs for 5 stepper motors compatible with A4988 (A4988, DRV8825, TMC2100, TMC2130, TMC2208, etc).
• 4 PWM output - Heatbed, 2 x heaters, 1 controlled fans
• 3 temperature inputs
• 6 inputs for XMIN, XMAX, YMIN, YMAX, ZMIN, ZMAX
• filament detector input
• BlTouch connector (shared with ZMAX, YMAX)
• connectors I2C/UART interfaces
• EXT1/EXT2 connectrs for displays/external SD card
• SWD connector
• USB-B
• micro SD
• board size 112 x 100 mm
  Project page on easyeda.com https://easyeda.com/mmaygli/stm32f103-3d-printer-board
  Status on 9 of Dec 2018: Boards just designed. Its have never be assembled and tested