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Merge pull request #776 from whosawhatsis/fwretract 

Fwretract fixes, cleanup
pull/1/head
daid 11 years ago
parent
fd42f0d226 c43838bb1e
commit
46bae30573
2 changed files with 64 additions and 72 deletions
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  1. 10
      Marlin/Configuration_adv.h
  2. 126
      Marlin/Marlin_main.cpp

10
Marlin/Configuration_adv.h
View File

@ -399,8 +399,14 @@ const unsigned int dropsegments=5; //everything with less than this number of st
// the moves are than replaced by the firmware controlled ones.
// #define FWRETRACT //ONLY PARTIALLY TESTED
#define MIN_RETRACT 0.1 //minimum extruded mm to accept a automatic gcode retraction attempt
#ifdef FWRETRACT
#define MIN_RETRACT 0.1 //minimum extruded mm to accept a automatic gcode retraction attempt
#define RETRACT_LENGTH 3 //default retract length (positive mm)
#define RETRACT_FEEDRATE 80*60 //default feedrate for retracting
#define RETRACT_ZLIFT 0 //default retract Z-lift
#define RETRACT_RECOVER_LENGTH 0 //default additional recover length (mm, added to retract length when recovering)
#define RETRACT_RECOVER_FEEDRATE 8*60 //default feedrate for recovering from retraction
#endif
//adds support for experimental filament exchange support M600; requires display
#ifdef ULTIPANEL

126
Marlin/Marlin_main.cpp
View File

@ -231,10 +231,13 @@ int EtoPPressure=0;
#endif
#ifdef FWRETRACT
bool autoretract_enabled=true;
bool autoretract_enabled=false;
bool retracted=false;
float retract_length=3, retract_feedrate=17*60, retract_zlift=0.8;
float retract_recover_length=0, retract_recover_feedrate=8*60;
float retract_length = RETRACT_LENGTH;
float retract_feedrate = RETRACT_FEEDRATE;
float retract_zlift = RETRACT_ZLIFT;
float retract_recover_length = RETRACT_RECOVER_LENGTH;
float retract_recover_feedrate = RETRACT_RECOVER_FEEDRATE;
#endif
#ifdef ULTIPANEL
@ -1085,6 +1088,42 @@ void refresh_cmd_timeout(void)
previous_millis_cmd = millis();
}
#ifdef FWRETRACT
void retract(bool retracting) {
if(retracting && !retracted) {
destination[X_AXIS]=current_position[X_AXIS];
destination[Y_AXIS]=current_position[Y_AXIS];
destination[Z_AXIS]=current_position[Z_AXIS];
destination[E_AXIS]=current_position[E_AXIS];
current_position[E_AXIS]+=retract_length/volumetric_multiplier[active_extruder];
plan_set_e_position(current_position[E_AXIS]);
float oldFeedrate = feedrate;
feedrate=retract_feedrate;
retracted=true;
prepare_move();
current_position[Z_AXIS]-=retract_zlift;
plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);
prepare_move();
feedrate = oldFeedrate;
} else if(!retracting && retracted) {
destination[X_AXIS]=current_position[X_AXIS];
destination[Y_AXIS]=current_position[Y_AXIS];
destination[Z_AXIS]=current_position[Z_AXIS];
destination[E_AXIS]=current_position[E_AXIS];
current_position[Z_AXIS]+=retract_zlift;
plan_set_position(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS]);
//prepare_move();
current_position[E_AXIS]-=(retract_length+retract_recover_length)/volumetric_multiplier[active_extruder];
plan_set_e_position(current_position[E_AXIS]);
float oldFeedrate = feedrate;
feedrate=retract_recover_feedrate;
retracted=false;
prepare_move();
feedrate = oldFeedrate;
}
} //retract
#endif //FWRETRACT
void process_commands()
{
unsigned long codenum; //throw away variable
@ -1100,6 +1139,18 @@ void process_commands()
case 1: // G1
if(Stopped == false) {
get_coordinates(); // For X Y Z E F
#ifdef FWRETRACT
if(autoretract_enabled)
if( !(code_seen(X_AXIS) || code_seen(Y_AXIS) || code_seen(Z_AXIS)) && code_seen(E_AXIS)) {
float echange=destination[E_AXIS]-current_position[E_AXIS];
if((echange<-MIN_RETRACT && !retracted) || (echange>MIN_RETRACT && retracted)) { //move appears to be an attempt to attract or recover
current_position[E_AXIS] = destination[E_AXIS]; //hide the slicer-generated retract/recover from calculations
plan_set_e_position(current_position[E_AXIS]); //AND from the planner
retract(!retracted);
return;
}
}
#endif //FWRETRACT
prepare_move();
//ClearToSend();
return;
@ -1134,39 +1185,10 @@ void process_commands()
break;
#ifdef FWRETRACT
case 10: // G10 retract
if(!retracted)
{
destination[X_AXIS]=current_position[X_AXIS];
destination[Y_AXIS]=current_position[Y_AXIS];
destination[Z_AXIS]=current_position[Z_AXIS];
current_position[Z_AXIS]-=retract_zlift;
destination[E_AXIS]=current_position[E_AXIS];
current_position[E_AXIS]+=retract_length/volumetric_multiplier[active_extruder];
plan_set_e_position(current_position[E_AXIS]);
float oldFeedrate = feedrate;
feedrate=retract_feedrate;
retracted=true;
prepare_move();
feedrate = oldFeedrate;
}
retract(true);
break;
case 11: // G11 retract_recover
if(retracted)
{
destination[X_AXIS]=current_position[X_AXIS];
destination[Y_AXIS]=current_position[Y_AXIS];
destination[Z_AXIS]=current_position[Z_AXIS];
current_position[Z_AXIS]+=retract_zlift;
destination[E_AXIS]=current_position[E_AXIS];
current_position[E_AXIS]-=(retract_length+retract_recover_length)/volumetric_multiplier[active_extruder];
plan_set_e_position(current_position[E_AXIS]);
float oldFeedrate = feedrate;
feedrate=retract_recover_feedrate;
retracted=false;
prepare_move();
feedrate = oldFeedrate;
}
retract(false);
break;
#endif //FWRETRACT
case 28: //G28 Home all Axis one at a time
@ -3022,42 +3044,6 @@ void get_coordinates()
next_feedrate = code_value();
if(next_feedrate > 0.0) feedrate = next_feedrate;
}
#ifdef FWRETRACT
if(autoretract_enabled)
if( !(seen[X_AXIS] || seen[Y_AXIS] || seen[Z_AXIS]) && seen[E_AXIS])
{
float echange=destination[E_AXIS]-current_position[E_AXIS];
if(echange<-MIN_RETRACT) //retract
{
if(!retracted)
{
destination[Z_AXIS]+=retract_zlift; //not sure why chaninging current_position negatively does not work.
//if slicer retracted by echange=-1mm and you want to retract 3mm, corrrectede=-2mm additionally
float correctede=-echange-retract_length;
//to generate the additional steps, not the destination is changed, but inversely the current position
current_position[E_AXIS]+=-correctede;
feedrate=retract_feedrate;
retracted=true;
}
}
else
if(echange>MIN_RETRACT) //retract_recover
{
if(retracted)
{
//current_position[Z_AXIS]+=-retract_zlift;
//if slicer retracted_recovered by echange=+1mm and you want to retract_recover 3mm, corrrectede=2mm additionally
float correctede=-echange+1*retract_length+retract_recover_length; //total unretract=retract_length+retract_recover_length[surplus]
current_position[E_AXIS]+=correctede; //to generate the additional steps, not the destination is changed, but inversely the current position
feedrate=retract_recover_feedrate;
retracted=false;
}
}
}
#endif //FWRETRACT
}
void get_arc_coordinates()

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