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Added Y_DUAL_STEPPER_DRIVERS

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Enables two stepper drivers to be used for the Y axis (useful for
Shapeoko style machines)
Each Y driver can be stepped in either the same way or in opposite
directions, accounting for different hardware setups (leadscrew vs. belt
driven)
This commit is contained in:
Richard Miles 2013-09-17 19:19:20 +01:00
parent f4a59e4ce5
commit ed1ab42186
3 changed files with 54 additions and 2 deletions
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15
Marlin/Configuration_adv.h
View file

@ -152,6 +152,21 @@
#define EXTRUDERS 1
#endif
// Same again but for Y Axis.
#define Y_DUAL_STEPPER_DRIVERS
// Define if the two Y drives need to rotate in opposite directions
#define INVERT_Y2_VS_Y_DIR true
#ifdef Y_DUAL_STEPPER_DRIVERS
#undef EXTRUDERS
#define EXTRUDERS 1
#endif
#ifdef Z_DUAL_STEPPER_DRIVERS && Y_DUAL_STEPPER_DRIVERS
#error "You cannot have dual drivers for both Y and Z"
#endif
//homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:
#define X_HOME_RETRACT_MM 5
#define Y_HOME_RETRACT_MM 5

5
Marlin/Marlin.h
View file

@ -105,8 +105,13 @@ void manage_inactivity();
#endif
#if defined(Y_ENABLE_PIN) && Y_ENABLE_PIN > -1
#ifdef Y_DUAL_STEPPER_DRIVERS
#define enable_y() { WRITE(Y_ENABLE_PIN, Y_ENABLE_ON); WRITE(Y2_ENABLE_PIN, Y_ENABLE_ON); }
#define disable_y() { WRITE(Y_ENABLE_PIN,!Y_ENABLE_ON); WRITE(Y2_ENABLE_PIN, !Y_ENABLE_ON); }
#else
#define enable_y() WRITE(Y_ENABLE_PIN, Y_ENABLE_ON)
#define disable_y() WRITE(Y_ENABLE_PIN,!Y_ENABLE_ON)
#endif
#else
#define enable_y() ;
#define disable_y() ;

32
Marlin/stepper.cpp
View file

@ -357,10 +357,20 @@ ISR(TIMER1_COMPA_vect)
}
if((out_bits & (1<<Y_AXIS))!=0){
WRITE(Y_DIR_PIN, INVERT_Y_DIR);
#ifdef Y_DUAL_STEPPER_DRIVERS
WRITE(Y2_DIR_PIN, !(INVERT_Y_DIR == INVERT_Y2_VS_Y_DIR));
#endif
count_direction[Y_AXIS]=-1;
}
else{
WRITE(Y_DIR_PIN, !INVERT_Y_DIR);
#ifdef Y_DUAL_STEPPER_DRIVERS
WRITE(Y2_DIR_PIN, (INVERT_Y_DIR == INVERT_Y2_VS_Y_DIR));
#endif
count_direction[Y_AXIS]=1;
}
@ -516,9 +526,18 @@ ISR(TIMER1_COMPA_vect)
counter_y += current_block->steps_y;
if (counter_y > 0) {
WRITE(Y_STEP_PIN, !INVERT_Y_STEP_PIN);
#ifdef Y_DUAL_STEPPER_DRIVERS
WRITE(Y2_STEP_PIN, !INVERT_Y_STEP_PIN);
#endif
counter_y -= current_block->step_event_count;
count_position[Y_AXIS]+=count_direction[Y_AXIS];
WRITE(Y_STEP_PIN, INVERT_Y_STEP_PIN);
#ifdef Y_DUAL_STEPPER_DRIVERS
WRITE(Y2_STEP_PIN, INVERT_Y_STEP_PIN);
#endif
}
counter_z += current_block->steps_z;
@ -687,6 +706,10 @@ void st_init()
#endif
#if defined(Y_DIR_PIN) && Y_DIR_PIN > -1
SET_OUTPUT(Y_DIR_PIN);
#if defined(Y_DUAL_STEPPER_DRIVERS) && defined(Y2_DIR_PIN) && (Y2_DIR_PIN > -1)
SET_OUTPUT(Y2_DIR_PIN);
#endif
#endif
#if defined(Z_DIR_PIN) && Z_DIR_PIN > -1
SET_OUTPUT(Z_DIR_PIN);
@ -714,6 +737,11 @@ void st_init()
#if defined(Y_ENABLE_PIN) && Y_ENABLE_PIN > -1
SET_OUTPUT(Y_ENABLE_PIN);
if(!Y_ENABLE_ON) WRITE(Y_ENABLE_PIN,HIGH);
#if defined(Y_DUAL_STEPPER_DRIVERS) && defined(Y2_ENABLE_PIN) && (Y2_ENABLE_PIN > -1)
SET_OUTPUT(Y2_ENABLE_PIN);
if(!Y_ENABLE_ON) WRITE(Y2_ENABLE_PIN,HIGH);
#endif
#endif
#if defined(Z_ENABLE_PIN) && Z_ENABLE_PIN > -1
SET_OUTPUT(Z_ENABLE_PIN);
@ -791,6 +819,10 @@ void st_init()
#if defined(Y_STEP_PIN) && (Y_STEP_PIN > -1)
SET_OUTPUT(Y_STEP_PIN);
WRITE(Y_STEP_PIN,INVERT_Y_STEP_PIN);
#if defined(Y_DUAL_STEPPER_DRIVERS) && defined(Y2_STEP_PIN) && (Y2_STEP_PIN > -1)
SET_OUTPUT(Y2_STEP_PIN);
WRITE(Y2_STEP_PIN,INVERT_Y_STEP_PIN);
#endif
disable_y();
#endif
#if defined(Z_STEP_PIN) && (Z_STEP_PIN > -1)