RAMPS 1.4 RRD Fan extender for dual extruder

Dual Fan Extender for RAMPS
Product Description

Must have for dual extruder RepRap with heated bed. It's a plug and play solution to mount the FAN for DUAL-EXTRUSION setup with RAMPS1.4. Instead of adding only one additional output port, the RRD-FAN-EXTENDER is equipped with 2 PWM controllable channels. The second channel can be used for another fan (e.g. to cool the stepper driver) or for adding light control (e.g. add dimmable LED light to your machine)

Package includes :

  • 1x RRD fan extender (assembled and tested PCB)
  • 1x connection wire
  • 2x cooler fan (40mmx40mm)
  • 1x 2pin header (in case your ramps 1.4 board did not came with the 2 pins soldered)

Technical data

  • 2 (PWM controllable) channels (D4/D5)
  • Max 0.5A per channel (enough for a really big fan)
  • Flexible output voltage (you can connect the RRD-FAN-EXTENDER to 12V,5V,...)
  • Each channel has a fly back diode
  • Already supported by Marlin firmware (choose "#define MOTHERBOARD 34")
  • Easy to adapt to other firmware (e.g. Sprinter: just change "#define FAN_PIN 4" in "pins.h")

Firmware and hardware required

  • Marlin firmware v3 or newer
  • Ramps 1.4
  • Mega2560 board