Alligator Board

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Crystal Clear action run.png
Alligator Board

Release status: working

3dArtists-AlligatorBoard-RepRap-2.jpg
Description Alligator Board
License CC-BY-NC-SA
Author 3D Artists
Contributors
Based-on Delta
Categories Electronics
CAD Models Github
External Link 3D Artists

The Alligator Board is designed to be a complete and reliable solution as RepRap 3D printer electronic control board. The base module features everything you need to build a standard 3D printer, and with the expansion piggy this is the most complete solution for complex 3D printer.

It is based on the 32 bit Cortex M3 ATSAM3X8EA microcontroller (Arduino Due CPU). This represents a big step towards greater computing power, compared to the existing solution based on 8 bit mcu. This product is well suited for any kind of 3D printer, and is the ideal solution for Delta models, requiring more complex computation.

Alligator-presentation.jpg

Contents

Main Features

Main Features:

  • CPU Cortex M3 Atmel ATSAM3X8EA-AU, Arduino-Due-Compatible
  • High Current connector for power input, bed and hot-end heaters
  • No STOP Printer Filter Power Supply Input 12-24Vdc
  • 4 Stepper Motor driver based on Texas Instrument DRV8825, running at 1/16 or 1/32 microcstep, up to 2.5A firmware configurable current and step size - no trimmer and no dip-switch
  • 6 End-Stop input compatible with both mechanical and optical/magnetic solution
  • High current Hot-End Heater driver output (High-Current connector)
  • High current Bed Heater driver output (High-Current connector)
  • 2 Precision analog input for temperature measurement with RTD (compatible with external adapter for thermocouple) 4k7,1k pull-up selectable via dip-switch
  • 2 External FAN output with PWM speed control
  • External 32Mbit Flash memory, in addition to the 64Kbit EEPROM
  • USB to Virtual COM port interface (micro USB connector)
  • Native USB port (micro USB connector)
  • microSD Slot
  • 10/100 Ethernet Port with unique MAC address pre-programmed chip
  • Expansion connector with 3 UART or 6 GPIO with firmware selectable +3V3/+5V logic levels
  • 26pin Raspberry-PI direct connection for printing and firmware update.
  • 3 Generic PWM open drain output for general porpouse application (ex. RGB LED)
  • Expansion connectors for user customizable piggy module
  • Marlin Firmware porting available
  • Repetier Firmware porting available

Piggy MultiExtruder Expansion

With Piggy module you can add other three extruders!

Alligator-piggy-expansion.jpg


Perfect for Standard machine, suitable for Delta printer

Alligator-on-deòta-printer.jpg


Direct connection to RaspberryPi world..

Alligator-Raspberry.jpg


Wiring Scheme

Wiring Scheme Example:

AlligatorBoard WiringScheme.jpg


Links

Further reading