3d_print_resources/Marlin
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Fix cold/lengthy extrusion handling

Browse source
This commit is contained in:
Scott Lahteine 2017-11-10 01:32:48 -06:00
parent 4714fb8fcb
commit 24b302c001
2 changed files with 32 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

34
Marlin/planner.cpp
View file

@ -719,24 +719,28 @@ void Planner::_buffer_line(const float &a, const float &b, const float &c, const
long de = target[E_AXIS] - position[E_AXIS];
const float e_factor = volumetric_multiplier[extruder] * flow_percentage[extruder] * 0.01;
#if ENABLED(LIN_ADVANCE)
float de_float = e - position_float[E_AXIS];
#endif
#if ENABLED(PREVENT_COLD_EXTRUSION)
#if ENABLED(PREVENT_COLD_EXTRUSION) || ENABLED(PREVENT_LENGTHY_EXTRUDE)
if (de) {
if (thermalManager.tooColdToExtrude(extruder)) {
position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
de = 0; // no difference
#if ENABLED(LIN_ADVANCE)
position_float[E_AXIS] = e;
de_float = 0;
#endif
SERIAL_ECHO_START();
SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP);
}
#if ENABLED(PREVENT_COLD_EXTRUSION)
if (thermalManager.tooColdToExtrude(extruder)) {
position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
de = 0; // no difference
#if ENABLED(LIN_ADVANCE)
position_float[E_AXIS] = e;
de_float = 0;
#endif
SERIAL_ECHO_START();
SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP);
}
#endif // PREVENT_COLD_EXTRUSION
#if ENABLED(PREVENT_LENGTHY_EXTRUDE)
int32_t de_mm = labs(de * volumetric_multiplier[active_extruder]);
const int32_t de_mm = labs(de * e_factor);
if (de_mm > (int32_t)axis_steps_per_mm[E_AXIS_N] * (EXTRUDE_MAXLENGTH)) { // It's not important to get max. extrusion length in a precision < 1mm, so save some cycles and cast to int
position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
de = 0; // no difference
@ -747,9 +751,9 @@ void Planner::_buffer_line(const float &a, const float &b, const float &c, const
SERIAL_ECHO_START();
SERIAL_ECHOLNPGM(MSG_ERR_LONG_EXTRUDE_STOP);
}
#endif
#endif // PREVENT_LENGTHY_EXTRUDE
}
#endif
#endif // PREVENT_COLD_EXTRUSION || PREVENT_LENGTHY_EXTRUDE
// Compute direction bit-mask for this block
uint8_t dm = 0;
@ -778,7 +782,7 @@ void Planner::_buffer_line(const float &a, const float &b, const float &c, const
#endif
if (de < 0) SBI(dm, E_AXIS);
const float esteps_float = de * volumetric_multiplier[extruder] * flow_percentage[extruder] * 0.01;
const float esteps_float = de * e_factor;
const int32_t esteps = abs(esteps_float) + 0.5;
// Calculate the buffer head after we push this byte