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[2.0.x] Extruder-Distinct Linear Advance K Factors (#11789)

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This commit is contained in:
Sam Lane
2018-09-11 04:37:32 +01:00
committed by Scott Lahteine
parent fe9f088d60
commit 4f883d5971
5 changed files with 82 additions and 26 deletions
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16
Marlin/src/module/planner.cpp
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@ -213,7 +213,7 @@ float Planner::previous_speed[NUM_AXIS],
#endif
#if ENABLED(LIN_ADVANCE)
float Planner::extruder_advance_K; // Initialized by settings.load()
float Planner::extruder_advance_K[EXTRUDERS]; // Initialized by settings.load()
#endif
#if HAS_POSITION_FLOAT
@ -1082,7 +1082,7 @@ void Planner::recalculate_trapezoids() {
calculate_trapezoid_for_block(current, current_entry_speed * nomr, next_entry_speed * nomr);
#if ENABLED(LIN_ADVANCE)
if (current->use_advance_lead) {
const float comp = current->e_D_ratio * extruder_advance_K * axis_steps_per_mm[E_AXIS];
const float comp = current->e_D_ratio * extruder_advance_K[active_extruder] * axis_steps_per_mm[E_AXIS];
current->max_adv_steps = current_nominal_speed * comp;
current->final_adv_steps = next_entry_speed * comp;
}
@ -1121,7 +1121,7 @@ void Planner::recalculate_trapezoids() {
calculate_trapezoid_for_block(next, next_entry_speed * nomr, float(MINIMUM_PLANNER_SPEED) * nomr);
#if ENABLED(LIN_ADVANCE)
if (next->use_advance_lead) {
const float comp = next->e_D_ratio * extruder_advance_K * axis_steps_per_mm[E_AXIS];
const float comp = next->e_D_ratio * extruder_advance_K[active_extruder] * axis_steps_per_mm[E_AXIS];
next->max_adv_steps = next_nominal_speed * comp;
next->final_adv_steps = (MINIMUM_PLANNER_SPEED) * comp;
}
@ -2130,12 +2130,12 @@ bool Planner::_populate_block(block_t * const block, bool split_move,
*
* esteps : This is a print move, because we checked for A, B, C steps before.
*
* extruder_advance_K : There is an advance factor set.
* extruder_advance_K[active_extruder] : There is an advance factor set for this extruder.
*
* de > 0 : Extruder is running forward (e.g., for "Wipe while retracting" (Slic3r) or "Combing" (Cura) moves)
*/
block->use_advance_lead = esteps
&& extruder_advance_K
&& extruder_advance_K[active_extruder]
&& de > 0;
if (block->use_advance_lead) {
@ -2154,7 +2154,7 @@ bool Planner::_populate_block(block_t * const block, bool split_move,
if (block->e_D_ratio > 3.0f)
block->use_advance_lead = false;
else {
const uint32_t max_accel_steps_per_s2 = MAX_E_JERK / (extruder_advance_K * block->e_D_ratio) * steps_per_mm;
const uint32_t max_accel_steps_per_s2 = MAX_E_JERK / (extruder_advance_K[active_extruder] * block->e_D_ratio) * steps_per_mm;
#if ENABLED(LA_DEBUG)
if (accel > max_accel_steps_per_s2) SERIAL_ECHOLNPGM("Acceleration limited.");
#endif
@ -2190,9 +2190,9 @@ bool Planner::_populate_block(block_t * const block, bool split_move,
#endif
#if ENABLED(LIN_ADVANCE)
if (block->use_advance_lead) {
block->advance_speed = (STEPPER_TIMER_RATE) / (extruder_advance_K * block->e_D_ratio * block->acceleration * axis_steps_per_mm[E_AXIS_N]);
block->advance_speed = (STEPPER_TIMER_RATE) / (extruder_advance_K[active_extruder] * block->e_D_ratio * block->acceleration * axis_steps_per_mm[E_AXIS_N]);
#if ENABLED(LA_DEBUG)
if (extruder_advance_K * block->e_D_ratio * block->acceleration * 2 < SQRT(block->nominal_speed_sqr) * block->e_D_ratio)
if (extruder_advance_K[active_extruder] * block->e_D_ratio * block->acceleration * 2 < SQRT(block->nominal_speed_sqr) * block->e_D_ratio)
SERIAL_ECHOLNPGM("More than 2 steps per eISR loop executed.");
if (block->advance_speed < 200)
SERIAL_ECHOLNPGM("eISR running at > 10kHz.");