Extruder Expansion Board

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EXT6

Release status: Experimental

RAMPS-FD-EXT6.png
Description
Extruder Expansion Board
License
GPL
Author
Contributors
Based-on
[[]]
Categories
CAD Models
KiCAD
External Link

Extruder Expansion Boards

An expansion board to allow additional extruders to be operated.

There are now two variants :

  • EXT4 supports up to 4 extruders with a direct GPIO interface, does not require firmware change apart from config
  • EXT6 supports up to 6 extruders with I2C/SPI interfaces, to make better use of limited IO but requires firmware support

EXT4

EXT4.png

Prototype

Features:

  • slots for 4 stepper driver modules
  • 4 thermistor inputs
  • 4 MOSFET outputs
  • compatible with 3.3V or 5V electronics
  • independent stepper drivers, heater control and thermistor inputs

EXT6

RAMPS-FD-EXT6.png

Bill of Materials

To be documented..

Prototype

Features:

  • slots for 6 stepper driver modules
  • 6 thermistor inputs
  • 6 MOSFET outputs with PWM control
  • fast low latency SPI compatible interface
  • interface requires minimum number of pins
  • compatible with 3.3V or 5V electronics