diff --git a/Firmware/Configuration.h b/Firmware/Configuration.h index a6c89c88..ef359f39 100644 --- a/Firmware/Configuration.h +++ b/Firmware/Configuration.h @@ -551,9 +551,10 @@ enum CalibrationStatus // Try to maintain a minimum distance from the bed even when Z is // unknown when doing the following operations -#define MIN_Z_FOR_LOAD 50 -#define MIN_Z_FOR_UNLOAD 50 -#define MIN_Z_FOR_PREHEAT 10 +#define MIN_Z_FOR_LOAD 50 // lcd filament loading or autoload +#define MIN_Z_FOR_UNLOAD 50 // lcd filament unloading +#define MIN_Z_FOR_SWAP 27 // filament change (including M600) +#define MIN_Z_FOR_PREHEAT 10 // lcd preheat #include "Configuration_adv.h" #include "thermistortables.h" diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp index 68933093..f7e8a43d 100755 --- a/Firmware/Marlin_main.cpp +++ b/Firmware/Marlin_main.cpp @@ -3676,7 +3676,7 @@ static void gcode_M600(bool automatic, float x_position, float y_position, float // Unload filament if (mmu_enabled) extr_unload(); //unload just current filament for multimaterial printers (used also in M702) - else unload_filament(); //unload filament for single material (used also in M702) + else unload_filament(true); //unload filament for single material (used also in M702) //finish moves st_synchronize(); diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp index 3e765a5c..5e085f90 100755 --- a/Firmware/ultralcd.cpp +++ b/Firmware/ultralcd.cpp @@ -4885,7 +4885,7 @@ void lcd_wizard(WizState state) lcd_display_message_fullscreen_P(_i("Now I will preheat nozzle for PLA.")); wait_preheat(); //unload current filament - unload_filament(); + unload_filament(true); //load filament lcd_wizard_load(); setTargetHotend(0, 0); //we are finished, cooldown nozzle @@ -6200,13 +6200,14 @@ static void change_extr_menu(){ } #endif //SNMM -//unload filament for single material printer (used in M702 gcode) -void unload_filament() +// unload filament for single material printer (used in M702 gcode) +// @param automatic: If true, unload_filament is part of a unload+load sequence (M600) +void unload_filament(bool automatic) { custom_message_type = CustomMsg::FilamentLoading; lcd_setstatuspgm(_T(MSG_UNLOADING_FILAMENT)); - raise_z_above(MIN_Z_FOR_UNLOAD); + raise_z_above(automatic? MIN_Z_FOR_SWAP: MIN_Z_FOR_UNLOAD); // extr_unload2(); diff --git a/Firmware/ultralcd.h b/Firmware/ultralcd.h index 008a106e..c671326e 100755 --- a/Firmware/ultralcd.h +++ b/Firmware/ultralcd.h @@ -195,7 +195,7 @@ extern bool bFilamentAction; void mFilamentItem(uint16_t nTemp,uint16_t nTempBed); void mFilamentItemForce(); void lcd_generic_preheat_menu(); -void unload_filament(); +void unload_filament(bool automatic = false); void stack_error(); void lcd_printer_connected();