Description: The Einsy Rambo1.2e Mainboard, designed for Reprap Prusa i3 MK3, is equipped with 4 Trinamic TMC2130 Stepper Drivers SPI Control and 4 Mosfet Switched Outputs.
Key Features:
● Microcontrollers: The board uses MEGA compatible Atmega2560 and Atmega32u2 processors, which are compatible with all RAMPS class firmware.
● Accurate Timing: Crystals for both usb and mcu provide timing accurate to 10ppm.
● Thermistors: The board features 3 Thermistor jacks and a 4th Thermistor circuit on ZProbe.
● Motor Drivers: It includes 4 Trinamic TMC2130 1/256th microstep motor drivers with 2 connectors on Z for Prusa Mendel and other dual Z printer designs. It offers SPI Control of stepper current instead of PWM. Microstep mode is configured by MCU through firmware (SPI, no jumpers needed). It also has PWM DC outputs for extruders, fans, etc.
● Outputs: The board comes with 4 outputs including 1 Extruder, 1 BED, and 2 of low power (fan, etc). Each channel has an indicator LED.
● Power: The mainboard has 2 power input rails. Heated Bed uses 15A 12-24V with a dedicated 15A fuse, while Primary Power for Motors, Logic & Fans uses 10A 12-24V with respective dedicated fuses. Also built in is an SMPS for 5V generation.
● Connectors: The connectors provided are 4-pin motor, ZProbe plug – Molex 5057-9404, 3-pin fan plug – Molex 5057-9403, and 2-pin thermistor, mech. endstop plug – Molex 5057-9402.
Included in the package are 1 Einsy Rambo1.2e board, 1 USB, and 4 heat sinks.
