Einsy Rambo 1.1a Mainboard With 4pcs Heatsink For 3D Printer Reprap Prusa i3 MK3 Board

Features:

  

Logic 

 

For Arduino MEGA compatible Atmega2560 and Atmega32u2 processors are compatible with all RAMPS class firmware 

Crystals for both usb and mcu (timing accurate to 10ppm) 

3 Thermistor jacks + 4th Thermistor circuit on ZProbe. 

 

Motor Drivers 

 

4 Trinamic TMC2130 1/256th microstep motor drivers(2 connectors on Z for Prusa Mendel and other dual Z printer designs) 

SPI Control of stepper current instead of PWM. 

Microstep mode configured by MCU through firmware (SPI, no jumpers needed) 

PWM DC outputs (Extruders, Fans, Etc.) 

 

4 outputs (1 Extruder, 1 BED, 2 low power (fan,etc) 

 

Low resistance mosfets for cool running 

Indicator led for each channel 

FANS have 3pin fan connector. 

FANS have 5V instead of 12-24V power source. 

FAN connectors have tachometer feedback pin to the MCU to measure fan speed in capable firmware. 

 

Power 

 

2 power input rails 

Heated Bed, 15A 12-24V (15A dedicated fuse) 

Primary Power 10A 12-24V: Motors, Logic & Fans (5A dedicated fuse) + Extruder (5A dedicated fuse) 

Built in SMPS for 5V generation from the Motors, Logic & Fans rail 

Provides 5V power to FANS 

 

Connectors 

 

4-pin motor,zprobe plug - Molex 5057-9404 

3-pin fan plug - Molex 5057-9403 

2-pin thermistor, mech. endstop plug - Molex 5057-9402 

 

Package Included: 

 

1x  EinsyRambo 1.1a 

1x USB cable

4x Black heat sink