Mini-Rambo 1.3 Mainboard Integrated Controller Board + 4pcs Heatsinks For Prusa i3 MK2 3D Printer

Description: RAMBo (RepRap Arduino-compatible Mother Board) is an all in one RAMPS class motherboard targeting convenience, reliability, and performance. Features: Logic - Arduino MEGA compatible Atmega2560 and Atmega32u2 processors are compatible with all RAMPS class firmware - Crystals for both usb and mcu (timing accurate to 10ppm) - 4 Thermistor jacks - All extra pins broken out on both processors (allows using the 32u2 for LUFA AVR programmer, etc.) - 2 channel SDRAMPS compatible SPI breakout Motor Drivers - 5 A4982 1/16th microstep motor drivers (A4984 1/8th prior to v1.1) (2 connectors on Z for Prusa Mendel and other dual Z printer designs) - Digital Trimpot for stepper current control - Current limit on driver IC VCC to prevent permanent latchup - Microstep mode configured by MCU through firmware (no jumpers needed) - Test points for driver control signals - Step and Direction pins are on their own ports for synchronous movement capability - Extra driver ports broke out for up to 3 additional drivers (some of the motor extension pins are shared with max endstop and a pin allocated for SPI-SS extensions) PWM DC outputs (Extruders, Fans, Etc.) - 6 outputs - Low resistance mosfets for cool running - Indicator led for each channel Power - Three independent power rails for flexible input power configurations - Heated Bed, 15A 12-24V (version earlier than 1.1 limted to 14A 16V due to fuse rating, see rambo_development for hacks) - Extruders and fans, 5A 12-24V (fuse can be exchanged for up to 10A capacity) 10V-26V input voltage - Motors, 5A 12-24V (fuse can be exchanged for up to 10A capacity) 10V-26V input voltage - Built in SMPS for 5V generation PCB - 4 layer - 2oz copper on all layers - High quality, High temperature FR4-TG130 PCB - Gold ENIG finishing More info. please refer to WIKI Package Included: 1x Mini-Rambo 1.3 Mainboard 1x USB cable 2x Terminal 4x Heatsinks