Merge pull request MarlinFirmware#4033 from gudnimg/improve-preheat-t…

…arget preheat: improve target temperature threshold
drewmoseley · Mar 3, 2023 · 474d489 · 474d489
2 parents bc81863 + 496b52b
commit 474d489
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
@@ -11424,7 +11424,7 @@ void M600_wait_for_user(float HotendTempBckp) {
 				}
 				break;
 			case 2: //waiting for nozzle to reach target temperature
-				if (fabs(degTargetHotend(active_extruder) - degHotend(active_extruder)) < 1) {
+				if (fabs(degTargetHotend(active_extruder) - degHotend(active_extruder)) < TEMP_HYSTERESIS) {
 					lcd_display_message_fullscreen_P(_T(MSG_PRESS_TO_UNLOAD));
 					waiting_start_time = _millis();
 					wait_for_user_state = 0;

diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
@@ -1888,7 +1888,7 @@ void mFilamentItem(uint16_t nTemp, uint16_t nTempBed)
 
     lcd_timeoutToStatus.stop();
 
-    if (current_temperature[0] > (target_temperature[0] * 0.95))
+    if (abs((int)current_temperature[0] - nTemp) > TEMP_HYSTERESIS)
     {
         switch (eFilamentAction)
         {
@@ -3772,7 +3772,7 @@ static void wait_preheat()
     plan_buffer_line_curposXYZE(homing_feedrate[Z_AXIS] / 60);
     delay_keep_alive(2000);
     lcd_display_message_fullscreen_P(_T(MSG_WIZARD_HEATING));
-	while (fabs(degHotend(0) - degTargetHotend(0)) > 3) {
+    while (fabs(degHotend(0) - degTargetHotend(0)) > TEMP_HYSTERESIS) {
         lcd_display_message_fullscreen_P(_T(MSG_WIZARD_HEATING));
 
         lcd_set_cursor(0, 4);