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Dotbit Rambo 1.4 Motherboard Rambo V1.4 Board Mega And Stepper Drivers All On One Integrated Pcb For Arduino Lulzbot Taz6 3D Printer
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Dotbit Rambo 1.4 Motherboard Rambo V1.4 Board Mega And Stepper Drivers All On One Integrated Pcb For Arduino Lulzbot Taz6 3D Printer

- Black CN
104921852198031313

Rambo V1.4 Board Mega And Stepper Drivers All On One Integrated Pcb
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80.99
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Descriptions

Main Features

Description:

This is RAMBo v1.4. The RAMBo board is an all in one 3D printer motherboard. It is a full remix of our RAMPS design with the Arduino MEGA and stepper drivers all on one integrated PCB. That is where it got the name RAMBo- (R)epRap (A)rduino-(M)ega-compatible (M)other (Bo)ard. This is the same board you will find in the Lulzbot Taz6 Printer

RAMBo v1.4-The major difference over the previous version is the integrated LCD connector for Smart LCD Controllers. The EXT2 and SPI headers were re-arranged to remove the need for an adapter. This change is backwards compatible with firmware for previous versions of Rambo that normally utilize the RamboLCD.

Features
5 x integrated 1/16th microstep motor drivers, 5 PWM Mosfet outputs, 4 thermistor inputs, digital trimpot (no tiny knobs to tweak), SMPS supports hostless printing on power supply voltages from 10-24V DC, 3 independent fuse protected power rails, LUFA USB, high quality connectors

Logic
Arduino MEGA compatible Atmega2560 and Atmega32u2 processors are compatible with all RAMPS class firmwares
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 1/8th microsteps motor drivers with 1,1/2,1/4,1/16 as options (2 connectors for Z-axis)
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 broken 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
Heated Bed, 15A 12-35V
Extruders + fans and logic, 5A 12-35V (fuse can be exchanged for up to 10A capacity)
Motors, 5A 12-28V (fuse can be exchanged for up to 10A capacity)
Built in SMPS for 5V generation from 10V-26V Vin

PCB
4 layer
2oz copper on all layers
High quality, High temperature FR4-TG130 PCB
Gold ENIG finishing

Fuses
2 user replaceable NANO2 fuses
Part number: 0448005.MR
F2: motors and on-board power supply
F3: extruder heater + fan outputs and logic
1 user replaceable automotive fuse
F4: automotive-type 15A ATO bladed fuse to for the heated bed

Specification

Package Size ( L x W x H )
15*10*4cm
Package Weights
0.171KG
Packing Contents
Package:   1pcs RAMBo 1.4 Board 1pc USB cable
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