RAMBO 1.2d 3D Printer Controller PCB RepRap with CABLES and ESD MOD

RAMBO 3d Printer Controller Board Rev. 1.2d w/ESD Mod/Patch One of the newest Revisions on the market TODAY! Used in all AirWolf 3d, XL & HD Printers! Excellent quality and performance! MY UNITS ARE ALL MODED Includes: Serialized PCBA (Rambo Controller Unit 1.2d w/ESD Mod/Patch; 2 Euro Style male connectors for power input and high power outputs; Printed Schematic Doc for reference. Specs 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 Locking Molex style female connectors All extra pins broken out on both processors (allows using the 32u2 for LUFA AVR programmer, etc.) Motor Drivers 5 A4982 Enhanced from previous Revs, 1/16th mircrostep motor drivers (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 12-35V Extruders + fans and logic, 5A 12-35V (fuse can be exchanged for up to 10A capacity) Motors, 5A 12-35V (fuse can be exchanged for up to 10A capacity) Built in SMPS for 5V generation from Extruders + fans and logic PCB 4 layer 2oz copper on all layer High quality, High temperature FR4-TG130 PCB Gold ENIG finishing