When the hotend is already close to the printing temperature and then you issue a print command, its temperature does not change quickly enough, resulting in
Heating failed, printer halted, please reset
In the Configuration_adv.h have a look at the THERMAL_PROTECTION_HOTENDS section, especially WATCH_TEMP_PERIOD and WATCH_TEMP_INCREASE.
When the hotend is already close to the printing temperature and then you issue a print command, its temperature does not change quickly enough, resulting in
In the
Configuration_adv.hhave a look at theTHERMAL_PROTECTION_HOTENDSsection, especiallyWATCH_TEMP_PERIODandWATCH_TEMP_INCREASE.