define PIN for FAN control for Dual Extruder on Arduino RAMPS1.4

sennalb

Hi Rpetier,

I have upgrade mi Kossel Printer DLT180 for dual extruder with the Firmware 0.92.8, but after i have download a new configuration.h file I have found that:

.....

#define NUM_EXTRUDER 2

#define MOTHERBOARD 33

#include "pins.h"

// ################## EDIT THESE SETTINGS MANUALLY ################

// ################ END MANUAL SETTINGS ##########################

#undef FAN_BOARD_PIN

#define FAN_BOARD_PIN -1

#define BOARD_FAN_SPEED 255

#define FAN_THERMO_PIN -1

.....

and then a question: is it possible configure  an alternative PIN to control a fun during printing of small sections ?

Thanks very muche for your great work and support. 

Alberto

Repetier

Sure you can. You also do not need to overwrite FAN_BOARD_PIN. That is just the default, but in config tool you select the pin to use and below named pins you find all digital pin numbers. If I rememeber right the extender uses pins 4 and 5.

sennalb

Hi Repetier

thanks, I have selected Digital PIN 5 on Print Cooling Fan Pin and I have attach a mosfer driver on this (servo Block on RAMPS)

Then a I have download a new configuration.h and compile it: it seems OK

I have also put a small donation for your great work

Thanks very much

Alberto