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BugFix for incorrect E-speed calculation

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The extrusion speed was wrong due to a not high enough precision of
esteps to XY steps, therefore now the target float values are used to
calculate the ratio between XY movement and extrusion speed.
The e_speed_multiplier8 was replaced by an absolute multiplier called
abs_adv_steps_multiplier8, therefore one multiplication and bitshift can
be saved inside the stepper ISR. Due to this, also extruder_advance_k is
better suited inside the planner and not the stepper files any more.
This commit is contained in:
Sebastianv650 2016-10-31 16:17:30 +01:00
parent fa6bf12697
commit f9bea7968f
5 changed files with 48 additions and 30 deletions
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2
Marlin/Marlin_main.cpp
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@ -6988,7 +6988,7 @@ inline void gcode_M503() {
*/
inline void gcode_M905() {
stepper.synchronize();
stepper.advance_M905(code_seen('K') ? code_value_float() : -1.0);
planner.advance_M905(code_seen('K') ? code_value_float() : -1.0);
}
#endif