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Edit thermal runaway description

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This commit is contained in:
Scott Lahteine
2015-05-07 20:46:03 -07:00
parent 91fa1dea82
commit 181ccc884c
13 changed files with 325 additions and 403 deletions
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56
Marlin/example_configurations/Felix/Configuration.h
View File

@@ -236,42 +236,36 @@ Here are some standard links for getting your machine calibrated:
#define EXTRUDE_MAXLENGTH (X_MAX_LENGTH+Y_MAX_LENGTH) //prevent extrusion of very large distances.
//===========================================================================
//============================= Thermal Runaway Protection ==================
//======================== Thermal Runaway Protection =======================
//===========================================================================
/*
This is a feature to protect your printer from burn up in flames if it has
a thermistor coming off place (this happened to a friend of mine recently and
motivated me writing this feature).
The issue: If a thermistor come off, it will read a lower temperature than actual.
The system will turn the heater on forever, burning up the filament and anything
else around.
After the temperature reaches the target for the first time, this feature will
start measuring for how long the current temperature stays below the target
minus _HYSTERESIS (set_temperature - THERMAL_RUNAWAY_PROTECTION_HYSTERESIS).
If it stays longer than _PERIOD, it means the thermistor temperature
cannot catch up with the target, so something *may be* wrong. Then, to be on the
safe side, the system will he halt.
Bear in mind the count down will just start AFTER the first time the
thermistor temperature is over the target, so you will have no problem if
your extruder heater takes 2 minutes to hit the target on heating.
*/
// If you want to enable this feature for all your extruder heaters,
// uncomment the 2 defines below:
/**
* Thermal Runaway Protection protects your printer from damage and fire if a
* thermistor falls out or temperature sensors fail in any way.
*
* The issue: If a thermistor falls out or a temperature sensor fails,
* Marlin can no longer sense the actual temperature. Since a disconnected
* thermistor reads as a low temperature, the firmware will keep the heater on.
*
* The solution: Once the temperature reaches the target, start observing.
* If the temperature stays too far below the target (hysteresis) for too long,
* the firmware will halt as a safety precaution.
*
* Note that because the countdown starts only AFTER the temperature reaches
* the target, this will not catch a thermistor that is already disconnected
* when the print starts!
*
* To enable for all extruder heaters, uncomment the two defines below:
*/
// Parameters for all extruder heaters
#define THERMAL_RUNAWAY_PROTECTION_PERIOD 40 //in seconds
#define THERMAL_RUNAWAY_PROTECTION_PERIOD 40 // in seconds
#define THERMAL_RUNAWAY_PROTECTION_HYSTERESIS 4 // in degree Celsius
// If you want to enable this feature for your bed heater,
// uncomment the 2 defines below:
// To enable for the bed heater, uncomment the two defines below:
// Parameters for the bed heater
#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 // in seconds
#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
//===========================================================================
@@ -349,7 +343,7 @@ const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic
#define Z_MAX_POS 235
//===========================================================================
//============================= Filament Runout Sensor ======================
//========================= Filament Runout Sensor ==========================
//===========================================================================
//#define FILAMENT_RUNOUT_SENSOR // Uncomment for defining a filament runout sensor such as a mechanical or opto endstop to check the existence of filament
// In RAMPS uses servo pin 2. Can be changed in pins file. For other boards pin definition should be made.
@@ -359,7 +353,7 @@ const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic
//#define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
//===========================================================================
//============================ Manual Bed Leveling ==========================
//=========================== Manual Bed Leveling ===========================
//===========================================================================
// #define MANUAL_BED_LEVELING // Add display menu option for bed leveling
@@ -380,7 +374,7 @@ const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic
#endif // MESH_BED_LEVELING
//===========================================================================
//============================= Bed Auto Leveling ===========================
//============================ Bed Auto Leveling ============================
//===========================================================================
//#define ENABLE_AUTO_BED_LEVELING // Delete the comment to enable (remove // at the start of the line)

56
Marlin/example_configurations/Felix/Configuration_DUAL.h
View File

@@ -236,42 +236,36 @@ Here are some standard links for getting your machine calibrated:
#define EXTRUDE_MAXLENGTH (X_MAX_LENGTH+Y_MAX_LENGTH) //prevent extrusion of very large distances.
//===========================================================================
//============================= Thermal Runaway Protection ==================
//======================== Thermal Runaway Protection =======================
//===========================================================================
/*
This is a feature to protect your printer from burn up in flames if it has
a thermistor coming off place (this happened to a friend of mine recently and
motivated me writing this feature).
The issue: If a thermistor come off, it will read a lower temperature than actual.
The system will turn the heater on forever, burning up the filament and anything
else around.
After the temperature reaches the target for the first time, this feature will
start measuring for how long the current temperature stays below the target
minus _HYSTERESIS (set_temperature - THERMAL_RUNAWAY_PROTECTION_HYSTERESIS).
If it stays longer than _PERIOD, it means the thermistor temperature
cannot catch up with the target, so something *may be* wrong. Then, to be on the
safe side, the system will he halt.
Bear in mind the count down will just start AFTER the first time the
thermistor temperature is over the target, so you will have no problem if
your extruder heater takes 2 minutes to hit the target on heating.
*/
// If you want to enable this feature for all your extruder heaters,
// uncomment the 2 defines below:
/**
* Thermal Runaway Protection protects your printer from damage and fire if a
* thermistor falls out or temperature sensors fail in any way.
*
* The issue: If a thermistor falls out or a temperature sensor fails,
* Marlin can no longer sense the actual temperature. Since a disconnected
* thermistor reads as a low temperature, the firmware will keep the heater on.
*
* The solution: Once the temperature reaches the target, start observing.
* If the temperature stays too far below the target (hysteresis) for too long,
* the firmware will halt as a safety precaution.
*
* Note that because the countdown starts only AFTER the temperature reaches
* the target, this will not catch a thermistor that is already disconnected
* when the print starts!
*
* To enable for all extruder heaters, uncomment the two defines below:
*/
// Parameters for all extruder heaters
#define THERMAL_RUNAWAY_PROTECTION_PERIOD 40 //in seconds
#define THERMAL_RUNAWAY_PROTECTION_PERIOD 40 // in seconds
#define THERMAL_RUNAWAY_PROTECTION_HYSTERESIS 4 // in degree Celsius
// If you want to enable this feature for your bed heater,
// uncomment the 2 defines below:
// To enable for the bed heater, uncomment the two defines below:
// Parameters for the bed heater
#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 //in seconds
#define THERMAL_RUNAWAY_PROTECTION_BED_PERIOD 20 // in seconds
#define THERMAL_RUNAWAY_PROTECTION_BED_HYSTERESIS 2 // in degree Celsius
//===========================================================================
@@ -349,7 +343,7 @@ const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic
#define Z_MAX_POS 235
//===========================================================================
//============================= Filament Runout Sensor ======================
//========================= Filament Runout Sensor ==========================
//===========================================================================
//#define FILAMENT_RUNOUT_SENSOR // Uncomment for defining a filament runout sensor such as a mechanical or opto endstop to check the existence of filament
// In RAMPS uses servo pin 2. Can be changed in pins file. For other boards pin definition should be made.
@@ -359,7 +353,7 @@ const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic
//#define ENDSTOPPULLUP_FIL_RUNOUT // Uncomment to use internal pullup for filament runout pins if the sensor is defined.
//===========================================================================
//============================ Manual Bed Leveling ==========================
//=========================== Manual Bed Leveling ===========================
//===========================================================================
// #define MANUAL_BED_LEVELING // Add display menu option for bed leveling
@@ -376,7 +370,7 @@ const bool Z_PROBE_ENDSTOP_INVERTING = false; // set to true to invert the logic
#endif // MESH_BED_LEVELING
//===========================================================================
//============================= Bed Auto Leveling ===========================
//============================ Bed Auto Leveling ============================
//===========================================================================
//#define ENABLE_AUTO_BED_LEVELING // Delete the comment to enable (remove // at the start of the line)