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🐛 Fix AUTOTEMP bug (thermal runaway) (#23025)
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Regression from 9823a37
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woisy00 authored and thinkyhead committed Dec 25, 2021
1 parent 8d21ea5 commit 2142e1d
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Showing 2 changed files with 2 additions and 2 deletions.
2 changes: 1 addition & 1 deletion Marlin/Configuration_adv.h
Original file line number Diff line number Diff line change
Expand Up @@ -414,7 +414,7 @@
*/
#define AUTOTEMP
#if ENABLED(AUTOTEMP)
#define AUTOTEMP_OLDWEIGHT 0.98
#define AUTOTEMP_OLDWEIGHT 0.98 // Factor used to weight previous readings (0.0 < value < 1.0)
// Turn on AUTOTEMP on M104/M109 by default using proportions set here
//#define AUTOTEMP_PROPORTIONAL
#if ENABLED(AUTOTEMP_PROPORTIONAL)
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2 changes: 1 addition & 1 deletion Marlin/src/module/planner.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -1457,7 +1457,7 @@ void Planner::check_axes_activity() {

float t = autotemp_min + high * autotemp_factor;
LIMIT(t, autotemp_min, autotemp_max);
if (t < oldt) t *= (1.0f - (AUTOTEMP_OLDWEIGHT)) + oldt * (AUTOTEMP_OLDWEIGHT);
if (t < oldt) t = t * (1.0f - (AUTOTEMP_OLDWEIGHT)) + oldt * (AUTOTEMP_OLDWEIGHT);
oldt = t;
thermalManager.setTargetHotend(t, active_extruder);
}
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