Extruder Expansion Board
Release status: Experimental
| Description | Extruder Expansion Board
|
| License | GPL
|
| Author | |
| Contributors | |
| Based-on | |
| Categories | |
| CAD Models | KiCAD
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| External Link |
Contents
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
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
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
