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Avoid triggering LA during a Z-priming move 

When recovering from a pause, the nozzle is often primed while
being lowered. If LA is triggered under such a move, the pressure
advance will be wasted.
This commit is contained in:
Yuri D'Elia 2019-06-03 12:24:08 +02:00
parent d2432056bd
commit fa7c0fb2c9
1 changed files with 6 additions and 4 deletions
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10
Firmware/planner.cpp
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@ -1023,13 +1023,15 @@ Having the real displacement of the head, we can calculate the total movement le
/**
* Use LIN_ADVANCE for blocks if all these are true:
*
* block->steps_e : This is a print move, because we checked for X, Y, Z steps before.
* extruder_advance_K : There is an advance factor set.
* delta_mm[E_AXIS] > 0 : Extruder is running forward (e.g., for "Wipe while retracting" (Slic3r) or "Combing" (Cura) moves)
* block->steps_e : This is a print move, because we checked for X, Y, Z steps before.
* extruder_advance_K : There is an advance factor set.
* delta_mm[E_AXIS] > 0 : Extruder is running forward (e.g., for "Wipe while retracting" (Slic3r) or "Combing" (Cura) moves)
* |delta_mm[Z_AXIS]| < 0.5 : Z is only moved for leveling (_not_ for priming)
*/
block->use_advance_lead = block->steps_e.wide
&& extruder_advance_K
&& delta_mm[E_AXIS] > 0;
&& delta_mm[E_AXIS] > 0
&& abs(delta_mm[Z_AXIS]) < 0.5;
if (block->use_advance_lead) {
block->e_D_ratio = (e - position_float[E_AXIS]) /
sqrt(sq(x - position_float[X_AXIS])