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 Indepen