Turn fan on/off automatically at temperature?

jesse · January 2017

Smoothie firmware has a nice feature where it turns the fan on/off when a temperature threshold is reached.

I would like the fan to turn on automatically to 100% at 100C+ and off completely 100C or lower.

Does Repetier firmware have the same feature? I see some fan variables in the beginning of Configuration.h.

Repetier · January 2017

Sure we call that fan cooling fan. Normal treshhold is 50°C but can be changed in configuration.

jesse · January 2017

Should I change any of these variables?

#undef FAN_PIN

#define FAN_PIN HEATER_2_PIN

#undef FAN_BOARD_PIN

#define FAN_BOARD_PIN -1

#define BOARD_FAN_SPEED 255

#define FAN_THERMO_PIN -1

#define FAN_THERMO_MIN_PWM 128

#define FAN_THERMO_MAX_PWM 255

#define FAN_THERMO_MIN_TEMP 45

#define FAN_THERMO_MAX_TEMP 60

#define FAN_THERMO_THERMISTOR_PIN -1

#define FAN_THERMO_THERMISTOR_TYPE

Repetier · February 2017

No, change this

/** The extruder cooler is a fan to cool the extruder when it is heating. If you turn the extruder on, the fan goes on. */

#define EXT0_EXTRUDER_COOLER_PIN -1

/** PWM speed for the cooler fan. 0=off 255=full speed */

#define EXT0_EXTRUDER_COOLER_SPEED 255

and

jesse · February 2017

Thanks, did you mean to write anything after "and" ?

Repetier · February 2017

Not really, information is complete.

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