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Fix mixing extruder filament change (#13803)

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This commit is contained in:
Thomas Moore
2019-05-01 22:55:58 -04:00
committed by Scott Lahteine
parent bf54251a10
commit ee243e4edf
15 changed files with 182 additions and 52 deletions
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25
Marlin/src/module/planner.cpp
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@ -1767,13 +1767,26 @@ bool Planner::_populate_block(block_t * const block, bool split_move,
}
#endif // PREVENT_COLD_EXTRUSION
#if ENABLED(PREVENT_LENGTHY_EXTRUDE)
if (ABS(de * e_factor[extruder]) > (int32_t)settings.axis_steps_per_mm[E_AXIS_N(extruder)] * (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
#if HAS_POSITION_FLOAT
position_float[E_AXIS] = target_float[E_AXIS];
const float e_steps = ABS(de * e_factor[extruder]);
const float max_e_steps = settings.axis_steps_per_mm[E_AXIS_N(extruder)] * (EXTRUDE_MAXLENGTH);
if (e_steps > max_e_steps) {
#if ENABLED(MIXING_EXTRUDER)
bool ignore_e = false;
float collector[MIXING_STEPPERS];
mixer.refresh_collector(1.0, mixer.get_current_vtool(), collector);
MIXER_STEPPER_LOOP(e)
if (e_steps * collector[e] > max_e_steps) { ignore_e = true; break; }
#else
constexpr bool ignore_e = true;
#endif
de = 0; // no difference
SERIAL_ECHO_MSG(MSG_ERR_LONG_EXTRUDE_STOP);
if (ignore_e) {
position[E_AXIS] = target[E_AXIS]; // Behave as if the move really took place, but ignore E part
#if HAS_POSITION_FLOAT
position_float[E_AXIS] = target_float[E_AXIS];
#endif
de = 0; // no difference
SERIAL_ECHO_MSG(MSG_ERR_LONG_EXTRUDE_STOP);
}
}
#endif // PREVENT_LENGTHY_EXTRUDE
}