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Merge pull request #1896 from thinkyhead/cold_extrude

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Homing fixes
2.0.x
Scott Lahteine 10 years ago
parent b089eb42eb 74e4b42f7e
commit e7aae314de
12 changed files with 103 additions and 91 deletions
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2
Marlin/Configuration.h
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@ -70,7 +70,7 @@ Here are some standard links for getting your machine calibrated:
// Optional custom name for your RepStrap or other custom machine
// Displayed in the LCD "Ready" message
// #define CUSTOM_MACHINE_NAME "This RepRap"
// #define CUSTOM_MACHINE_NAME "3D Printer"
// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)

97
Marlin/Marlin_main.cpp
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@ -850,6 +850,11 @@ void get_command()
}
float code_has_value() {
char c = *(strchr_pointer + 1);
return (c >= '0' && c <= '9') || c == '-' || c == '+' || c == '.';
}
float code_value() {
float ret;
char *e = strchr(strchr_pointer, 'E');
@ -1814,22 +1819,25 @@ inline void gcode_G28() {
home_all_axis = !(homeX || homeY || homeZ) || (homeX && homeY && homeZ);
if (home_all_axis || homeZ) {
#if Z_HOME_DIR > 0 // If homing away from BED do Z first
if (home_all_axis || homeZ) HOMEAXIS(Z);
HOMEAXIS(Z);
#elif !defined(Z_SAFE_HOMING) && defined(Z_RAISE_BEFORE_HOMING) && Z_RAISE_BEFORE_HOMING > 0
// Raise Z before homing any other axes
if (home_all_axis || homeZ) {
destination[Z_AXIS] = -Z_RAISE_BEFORE_HOMING * home_dir(Z_AXIS); // Set destination away from bed
// (Does this need to be "negative home direction?" Why not just use Z_RAISE_BEFORE_HOMING?)
destination[Z_AXIS] = -Z_RAISE_BEFORE_HOMING * home_dir(Z_AXIS);
feedrate = max_feedrate[Z_AXIS] * 60;
line_to_destination();
st_synchronize();
}
#endif
} // home_all_axis || homeZ
#ifdef QUICK_HOME
if (home_all_axis || (homeX && homeY)) { // First diagonal move
@ -1897,68 +1905,70 @@ inline void gcode_G28() {
if (home_all_axis || homeY) HOMEAXIS(Y);
// Set the X position, if included
// Adds the home_offset as well, which may be wrong
if (code_seen(axis_codes[X_AXIS])) {
float v = code_value();
if (v) current_position[X_AXIS] = v
#ifndef SCARA
+ home_offset[X_AXIS]
#endif
;
}
if (code_seen(axis_codes[X_AXIS]) && code_has_value())
current_position[X_AXIS] = code_value();
// Set the Y position, if included
// Adds the home_offset as well, which may be wrong
if (code_seen(axis_codes[Y_AXIS])) {
float v = code_value();
if (v) current_position[Y_AXIS] = v
#ifndef SCARA
+ home_offset[Y_AXIS]
#endif
;
}
if (code_seen(axis_codes[Y_AXIS]) && code_has_value())
current_position[Y_AXIS] = code_value();
// Home Z last if homing towards the bed
#if Z_HOME_DIR < 0
#ifndef Z_SAFE_HOMING
if (home_all_axis || homeZ) HOMEAXIS(Z);
if (home_all_axis || homeZ) {
#else // Z_SAFE_HOMING
#ifdef Z_SAFE_HOMING
if (home_all_axis) {
current_position[Z_AXIS] = 0;
sync_plan_position();
//
// Set the probe (or just the nozzle) destination to the safe homing point
//
// NOTE: If current_position[X_AXIS] or current_position[Y_AXIS] were set above
// then this may not work as expected.
destination[X_AXIS] = round(Z_SAFE_HOMING_X_POINT - X_PROBE_OFFSET_FROM_EXTRUDER);
destination[Y_AXIS] = round(Z_SAFE_HOMING_Y_POINT - Y_PROBE_OFFSET_FROM_EXTRUDER);
destination[Z_AXIS] = -Z_RAISE_BEFORE_HOMING * home_dir(Z_AXIS); // Set destination away from bed
feedrate = XY_TRAVEL_SPEED;
current_position[Z_AXIS] = 0;
sync_plan_position();
// This could potentially move X, Y, Z all together
line_to_destination();
st_synchronize();
// Set current X, Y is the Z_SAFE_HOMING_POINT minus PROBE_OFFSET_FROM_EXTRUDER
current_position[X_AXIS] = destination[X_AXIS];
current_position[Y_AXIS] = destination[Y_AXIS];
// Home the Z axis
HOMEAXIS(Z);
}
// Let's see if X and Y are homed and probe is inside bed area.
if (homeZ) {
else if (homeZ) { // Don't need to Home Z twice
// Let's see if X and Y are homed
if (axis_known_position[X_AXIS] && axis_known_position[Y_AXIS]) {
// Make sure the probe is within the physical limits
// NOTE: This doesn't necessarily ensure the probe is also within the bed!
float cpx = current_position[X_AXIS], cpy = current_position[Y_AXIS];
if ( cpx >= X_MIN_POS - X_PROBE_OFFSET_FROM_EXTRUDER
&& cpx <= X_MAX_POS - X_PROBE_OFFSET_FROM_EXTRUDER
&& cpy >= Y_MIN_POS - Y_PROBE_OFFSET_FROM_EXTRUDER
&& cpy <= Y_MAX_POS - Y_PROBE_OFFSET_FROM_EXTRUDER) {
// Set the plan current position to X, Y, 0
current_position[Z_AXIS] = 0;
plan_set_position(cpx, cpy, 0, current_position[E_AXIS]);
destination[Z_AXIS] = -Z_RAISE_BEFORE_HOMING * home_dir(Z_AXIS); // Set destination away from bed
feedrate = max_feedrate[Z_AXIS] * 60; // max_feedrate is in mm/s. line_to_destination is feedrate/60.
plan_set_position(cpx, cpy, 0, current_position[E_AXIS]); // = sync_plan_position
// Set Z destination away from bed and raise the axis
// NOTE: This should always just be Z_RAISE_BEFORE_HOMING unless...???
destination[Z_AXIS] = -Z_RAISE_BEFORE_HOMING * home_dir(Z_AXIS);
feedrate = max_feedrate[Z_AXIS] * 60; // feedrate (mm/m) = max_feedrate (mm/s)
line_to_destination();
st_synchronize();
// Home the Z axis
HOMEAXIS(Z);
}
else {
@ -1972,22 +1982,27 @@ inline void gcode_G28() {
SERIAL_ECHO_START;
SERIAL_ECHOLNPGM(MSG_POSITION_UNKNOWN);
}
}
#endif // Z_SAFE_HOMING
} // !home_all_axes && homeZ
#else // !Z_SAFE_HOMING
HOMEAXIS(Z);
#endif // !Z_SAFE_HOMING
} // home_all_axis || homeZ
#endif // Z_HOME_DIR < 0
// Set the Z position, if included
// Adds the home_offset as well, which may be wrong
if (code_seen(axis_codes[Z_AXIS])) {
float v = code_value();
if (v) current_position[Z_AXIS] = v + home_offset[Z_AXIS];
}
if (code_seen(axis_codes[Z_AXIS]) && code_has_value())
current_position[Z_AXIS] = code_value();
#if defined(ENABLE_AUTO_BED_LEVELING) && (Z_HOME_DIR < 0)
if (home_all_axis || homeZ) current_position[Z_AXIS] += zprobe_zoffset; // Add Z_Probe offset (the distance is negative)
#endif
sync_plan_position();
#endif // else DELTA

2
Marlin/configurator/config/Configuration.h
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@ -70,7 +70,7 @@ Here are some standard links for getting your machine calibrated:
// Optional custom name for your RepStrap or other custom machine
// Displayed in the LCD "Ready" message
// #define CUSTOM_MACHINE_NAME "This RepRap"
// #define CUSTOM_MACHINE_NAME "3D Printer"
// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)

2
Marlin/example_configurations/Hephestos/Configuration.h
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@ -64,7 +64,7 @@ Here are some standard links for getting your machine calibrated:
// Optional custom name for your RepStrap or other custom machine
// Displayed in the LCD "Ready" message
// #define CUSTOM_MACHINE_NAME "This RepRap"
// #define CUSTOM_MACHINE_NAME "3D Printer"
// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)

2
Marlin/example_configurations/K8200/Configuration.h
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@ -64,7 +64,7 @@ Here are some standard links for getting your machine calibrated:
// Optional custom name for your RepStrap or other custom machine
// Displayed in the LCD "Ready" message
// #define CUSTOM_MACHINE_NAME "This RepRap"
// #define CUSTOM_MACHINE_NAME "3D Printer"
// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)

2
Marlin/example_configurations/SCARA/Configuration.h
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@ -82,7 +82,7 @@ Here are some standard links for getting your machine calibrated:
// Optional custom name for your RepStrap or other custom machine
// Displayed in the LCD "Ready" message
// #define CUSTOM_MACHINE_NAME "This RepRap"
// #define CUSTOM_MACHINE_NAME "3D Printer"
// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)

2
Marlin/example_configurations/WITBOX/Configuration.h
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@ -64,7 +64,7 @@ Here are some standard links for getting your machine calibrated:
// Optional custom name for your RepStrap or other custom machine
// Displayed in the LCD "Ready" message
// #define CUSTOM_MACHINE_NAME "This RepRap"
// #define CUSTOM_MACHINE_NAME "3D Printer"
// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)

2
Marlin/example_configurations/makibox/Configuration.h
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@ -64,7 +64,7 @@ Here are some standard links for getting your machine calibrated:
// Optional custom name for your RepStrap or other custom machine
// Displayed in the LCD "Ready" message
// #define CUSTOM_MACHINE_NAME "This RepRap"
// #define CUSTOM_MACHINE_NAME "3D Printer"
// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)

2
Marlin/example_configurations/tvrrug/Round2/Configuration.h
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@ -64,7 +64,7 @@ Here are some standard links for getting your machine calibrated:
// Optional custom name for your RepStrap or other custom machine
// Displayed in the LCD "Ready" message
// #define CUSTOM_MACHINE_NAME "This RepRap"
// #define CUSTOM_MACHINE_NAME "3D Printer"
// Define this to set a unique identifier for this printer, (Used by some programs to differentiate between machines)
// You can use an online service to generate a random UUID. (eg http://www.uuidgenerator.net/version4)

2
Marlin/language.h
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@ -70,7 +70,7 @@
#endif
#else
#ifndef MACHINE_NAME
#define MACHINE_NAME "Mendel"
#define MACHINE_NAME "3D Printer"
#endif
#endif

8
Marlin/planner.cpp
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@ -504,7 +504,7 @@ float junction_deviation = 0.1;
#ifdef PREVENT_DANGEROUS_EXTRUDE
if (de) {
if (degHotend(active_extruder) < extrude_min_temp) {
if (degHotend(extruder) < extrude_min_temp) {
position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
de = 0; // no difference
SERIAL_ECHO_START;
@ -541,8 +541,8 @@ float junction_deviation = 0.1;
block->steps[Z_AXIS] = labs(dz);
block->steps[E_AXIS] = labs(de);
block->steps[E_AXIS] *= volumetric_multiplier[active_extruder];
block->steps[E_AXIS] *= extruder_multiply[active_extruder];
block->steps[E_AXIS] *= volumetric_multiplier[extruder];
block->steps[E_AXIS] *= extruder_multiply[extruder];
block->steps[E_AXIS] /= 100;
block->step_event_count = max(block->steps[X_AXIS], max(block->steps[Y_AXIS], max(block->steps[Z_AXIS], block->steps[E_AXIS])));
@ -676,7 +676,7 @@ float junction_deviation = 0.1;
delta_mm[Y_AXIS] = dy / axis_steps_per_unit[Y_AXIS];
#endif
delta_mm[Z_AXIS] = dz / axis_steps_per_unit[Z_AXIS];
delta_mm[E_AXIS] = (de / axis_steps_per_unit[E_AXIS]) * volumetric_multiplier[active_extruder] * extruder_multiply[active_extruder] / 100.0;
delta_mm[E_AXIS] = (de / axis_steps_per_unit[E_AXIS]) * volumetric_multiplier[extruder] * extruder_multiply[extruder] / 100.0;
if (block->steps[X_AXIS] <= dropsegments && block->steps[Y_AXIS] <= dropsegments && block->steps[Z_AXIS] <= dropsegments) {
block->millimeters = fabs(delta_mm[E_AXIS]);

5
Marlin/stepper.cpp
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@ -1072,10 +1072,7 @@ void st_init() {
TCCR0A &= ~BIT(WGM01);
TCCR0A &= ~BIT(WGM00);
#endif
e_steps[0] = 0;
e_steps[1] = 0;
e_steps[2] = 0;
e_steps[3] = 0;
e_steps[0] = e_steps[1] = e_steps[2] = e_steps[3] = 0;
TIMSK0 |= BIT(OCIE0A);
#endif //ADVANCE

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