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Add servo motherboard and update Marlin / Double extrusion


greglamouche

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Posted · Add servo motherboard and update Marlin / Double extrusion

Hello everybody,

i would like to add a servo to my UM2 for double extruder but i don't know where can i plug it on my motherboard in order to manage it.

I tried to change the marlin sofware to use one extruder for two head and one servo to tilt from the first head to the second head (http://www.thingiverse.com/thing:673816/#files)

I changed this file like that :

Configuration.h:

#define MOTHERBOARD 72

// This defines the number of extruders

#ifndef EXTRUDERS

#define EXTRUDERS 2

#define DONDOLO_SERVOPOS_E0 110

#define DONDOLO_SERVOPOS_E1 10

#define DONDOLO_SERVO_DELAY 1000

#define TEMP_SENSOR_1 1 // 0

#define INVERT_E1_DIR true // false

#define NUM_SERVOS 1

Marlin_Main.cpp:

else if(code_seen('T'))

{

tmp_extruder = code_value();

//Added for DEISS dual extruder

if(tmp_extruder == 0) {

st_synchronize();

servos[0].attach(SERVO0_PIN);

servos[0].write(servopos_extruder_0);

delay (servopos_delay);

servos[0].detach();

}

if(tmp_extruder == 1) {

st_synchronize();

servos[0].attach(SERVO0_PIN);

servos[0].write(servopos_extruder_1);

delay(servopos_delay);

servos[0].detach();

}

//end

if(tmp_extruder >= EXTRUDERS) {

pins.h:

MOTHERBOARD == 72

#define E0_STEP_PIN 42

#define E0_DIR_PIN 43

#define E0_ENABLE_PIN 37

// the extruder 1 pins as the extruder 0.

#define E1_STEP_PIN 42

#define E1_DIR_PIN 43

#define E1_ENABLE_PIN 37

//i must define the "SERVO0" pin

#ifdef NUM_SERVOS

#define SERVO0_PIN 11 // i used 11 but i don't know which pin i can use and where i can plug on my board

#endif

#endif

// end

PLease, could you help me?

Thank in advance!!!

Greg.

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