Ramps Fan Extender

Ramps Fan Extender is a plug and play solution to mount the FAN for DUAL-EXTRUSION setups with RAMPS 1.4. But instead of adding only one additional output port the RRD-FAN-EXTENDER is equipped with 2 PWM controllabe channels(D6/D11). 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).

Features:

• Max Voltage: 20V DC

• 2 (PWM controllable) channels (D6/D11)

• max 0.5A per channel (enough for a really big fan)

• flexible output voltage (you can connect the RRD-FAN-EXTENDER to 12V,5V,... in order to support the output voltage you need)

• each channel has a fly back diode

• easy setup (plug and play)

• already supported by Marlin firmware (choose "#define MOTHERBOARD 34")

• easy to adapapt to other firmware (e.g. Sprinter: just change "#define FAN_PIN 6" in "pins.h")