diff options
| -rw-r--r-- | Tonokip_Firmware/Tonokip_Firmware.pde | 14 | ||||
| -rw-r--r-- | Tonokip_Firmware/configuration.h | 7 |
2 files changed, 21 insertions, 0 deletions
diff --git a/Tonokip_Firmware/Tonokip_Firmware.pde b/Tonokip_Firmware/Tonokip_Firmware.pde index 9c395f8..c1f11dd 100644 --- a/Tonokip_Firmware/Tonokip_Firmware.pde +++ b/Tonokip_Firmware/Tonokip_Firmware.pde @@ -83,6 +83,7 @@ void kill(byte debug); // M92 - Set axis_steps_per_unit - same syntax as G92 // M115 - Capabilities string // M140 - Set bed target temp +// M143 - Set maximum hot-end temperature // M190 - Wait for bed current temp to reach target temp. @@ -170,6 +171,9 @@ unsigned long watchmillis=0; #ifdef MINTEMP int minttemp=temp2analog(MINTEMP); #endif +#ifdef MAXTEMP +int maxttemp=temp2analog(MAXTEMP); +#endif //Inactivity shutdown variables unsigned long previous_millis_cmd=0; @@ -693,6 +697,9 @@ inline void process_commands() case 140: // M140 set bed temp if (code_seen('S')) target_bed_raw = temp2analogBed(code_value()); break; + case 143: // M143 set maximum hotend temperature + if (code_seen('S')) maxttemp = temp2analog(code_value()); + break; case 105: // M105 #if (TEMP_0_PIN>-1) || defined (HEATER_USES_MAX6675) tt=analog2temp(current_raw); @@ -1325,6 +1332,12 @@ inline void manage_heater() if(current_raw<=minttemp) target_raw=0; #endif + #ifdef MAXTEMP + if(current_raw>maxttemp) { + // We are too hot. Emergency brake to protect hotend + kill(5); + } + #endif #if (TEMP_0_PIN > -1) || defined (HEATER_USES_MAX66675) #ifdef PIDTEMP error = target_raw - current_raw; @@ -1528,6 +1541,7 @@ inline void kill(byte debug) case 2: Serial.print("Linear Move Abort, Last Line: "); break; case 3: Serial.print("Homing X Min Stop Fail, Last Line: "); break; case 4: Serial.print("Homing Y Min Stop Fail, Last Line: "); break; + case 5: Serial.print("Hot-end overheat protection, Last Line: "); break; } Serial.println(gcode_LastN); delay(5000); // 5 Second delay diff --git a/Tonokip_Firmware/configuration.h b/Tonokip_Firmware/configuration.h index 97e94bc..de4d04e 100644 --- a/Tonokip_Firmware/configuration.h +++ b/Tonokip_Firmware/configuration.h @@ -61,6 +61,13 @@ float min_constant_speed_units = 2; // the minimum units of an accelerated move //The minimal temperature defines the temperature below which the heater will not be enabled //#define MINTEMP +//Experimental max temp +//When temperature exceeds max temp, your bot will halt. +//This feature exists to protect your hotend from overheating accidentally, but *NOT* from thermistor short/failure! +//You should use MINTEMP for thermistor short/failure protection. +//Can be customized using M143 +//#define MAXTEMP 275 + // Select one of these only to define how the nozzle temp is read. #define HEATER_USES_THERMISTOR //#define HEATER_USES_AD595 |