ZONESTAR ZM3E4 32-bits 3D Printer Control Board Motherboard Support 8 Steeper Motors

Option ZM3E4 1x ZM3E4V2.1 32-bits control board ZM3E4 with 8xTMC2208 1x ZM3E4V2.1 + 8x TMC2208 Stepper Motor Drivers ZM3E4 with 8xTMC2209 1x ZM3E4V2.1 + 8x TMC2209 Stepper Motor Drivers ZM3E4 with 8xTMC2225 1x ZM3E4V2.1 + 8x TMC2225 Stepper Motor Drivers   Description ZM3E4 is ZONESTAR's latest 32bits 3D printer control board. It is a feature rich electronics solution for Reprap and other CNC devices.  It built in a STM32F103VET6* MCU on board, which has 256K Flash ROM and 48K RAM, working frequency is as high as 72MHz. ZM3E4 used 4 layers of circuit boards, which has better heat dissipation effect and anti electromagnetic interference capability and reliability. ZM3E4 has 8 motor driver module sokect, it can support up to 5 extruders.  Default it supplied with a test frimware and you can upload own firmware from SD card. Features Build-in STM32F103FVET6* 32bits MCU, 72MHz working frequency. 4-layer circuit board. Support 8 stepper motor drivers; Support 2 Independent z-axis drivers with ENDSTOPs. Support WiFi and TFT-LCD control Panel. Bed Levling Sensor interface for Proximity Sensor and BL-Touch Support "Printing Finish Power Down" Feature (Need to connect an extral Power UP button). Build-in Laser control connnetor. 3x FUSEs for HOT BED and DC IN. 8x FUSEs for motor driver module. 4x External servo interface, with hardware PWM capability (one of them is multiplexed with FAN1). 3x temperature ADC connectors for thermistors. 2x Fan control connectors. 5x PWM capable power mosfet outputs with voltage selector for MainPower.(Bed, Extruder0, Extruder1, Fans). 6x endstop connectors with filter capacitor and the pull-up resistor on the board. For X, Y, Z, Z2 motor connector, it also provides five 6 PIN(PH2.0-6PIN) connectors which combined motors wires and limit switchs wires, to make wiring easier.  *NOTE: Due to the shortage of chips, we may replace the MCU with a fully compatible chips without notice, DO NOT BUY if you mind it.  !ATTENTION!   Total of current of stepper motors should be less than 6A. Current of HOTBED should be less than 10A. Current of HOTENDs should be less than 5A. Take care the direction when you plug in the motor driver modules, incorrect direction may burn ZM3E4! Default we uploaded a testing firmware to the control board, if you have any other requirement, please leave message to us. The latest version is V2.1, which is fully compatible with previous versions. Document download link Diameter:   Wiring Diagrame: