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Tweak Filament Width variables

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This commit is contained in:
Scott Lahteine 2016-09-05 23:57:12 -05:00
parent 68ba45572e
commit 6ac9d895ca
4 changed files with 19 additions and 21 deletions
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12
Marlin/Marlin.h
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@ -342,12 +342,12 @@ float code_value_temp_diff();
#endif
#if ENABLED(FILAMENT_WIDTH_SENSOR)
extern float filament_width_nominal; //holds the theoretical filament diameter i.e., 3.00 or 1.75
extern bool filament_sensor; //indicates that filament sensor readings should control extrusion
extern float filament_width_meas; //holds the filament diameter as accurately measured
extern int8_t measurement_delay[]; //ring buffer to delay measurement
extern int filwidth_delay_index1, filwidth_delay_index2; //ring buffer index. used by planner, temperature, and main code
extern int meas_delay_cm; //delay distance
extern bool filament_sensor; // Flag that filament sensor readings should control extrusion
extern float filament_width_nominal, // Theoretical filament diameter i.e., 3.00 or 1.75
filament_width_meas; // Measured filament diameter
extern int8_t measurement_delay[]; // Ring buffer to delay measurement
extern int filwidth_delay_index[2]; // Ring buffer indexes. Used by planner, temperature, and main code
extern int meas_delay_cm; // Delay distance
#endif
#if ENABLED(FILAMENT_CHANGE_FEATURE)

14
Marlin/Marlin_main.cpp
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@ -500,13 +500,11 @@ static uint8_t target_extruder;
#endif
#if ENABLED(FILAMENT_WIDTH_SENSOR)
//Variables for Filament Sensor input
float filament_width_nominal = DEFAULT_NOMINAL_FILAMENT_DIA; //Set nominal filament width, can be changed with M404
bool filament_sensor = false; //M405 turns on filament_sensor control, M406 turns it off
float filament_width_meas = DEFAULT_MEASURED_FILAMENT_DIA; //Stores the measured filament diameter
int8_t measurement_delay[MAX_MEASUREMENT_DELAY + 1]; //ring buffer to delay measurement store extruder factor after subtracting 100
int filwidth_delay_index1 = 0; //index into ring buffer
int filwidth_delay_index2 = -1; //index into ring buffer - set to -1 on startup to indicate ring buffer needs to be initialized
float filament_width_nominal = DEFAULT_NOMINAL_FILAMENT_DIA, // Nominal filament width. Change with M404
filament_width_meas = DEFAULT_MEASURED_FILAMENT_DIA; // Measured filament diameter
int8_t measurement_delay[MAX_MEASUREMENT_DELAY + 1]; // Ring buffer to delayed measurement. Store extruder factor after subtracting 100
int filwidth_delay_index[2] = { 0, -1 }; // Indexes into ring buffer
int meas_delay_cm = MEASUREMENT_DELAY_CM; //distance delay setting
#endif
@ -6137,13 +6135,13 @@ inline void gcode_M400() { stepper.synchronize(); }
if (code_seen('D')) meas_delay_cm = code_value_int();
NOMORE(meas_delay_cm, MAX_MEASUREMENT_DELAY);
if (filwidth_delay_index2 == -1) { // Initialize the ring buffer if not done since startup
if (filwidth_delay_index[1] == -1) { // Initialize the ring buffer if not done since startup
int temp_ratio = thermalManager.widthFil_to_size_ratio();
for (uint8_t i = 0; i < COUNT(measurement_delay); ++i)
measurement_delay[i] = temp_ratio - 100; // Subtract 100 to scale within a signed byte
filwidth_delay_index1 = filwidth_delay_index2 = 0;
filwidth_delay_index[0] = filwidth_delay_index[1] = 0;
}
filament_sensor = true;

12
Marlin/planner.cpp
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@ -868,7 +868,7 @@ void Planner::check_axes_activity() {
static float filwidth_e_count = 0, filwidth_delay_dist = 0;
//FMM update ring buffer used for delay with filament measurements
if (extruder == FILAMENT_SENSOR_EXTRUDER_NUM && filwidth_delay_index2 >= 0) { //only for extruder with filament sensor and if ring buffer is initialized
if (extruder == FILAMENT_SENSOR_EXTRUDER_NUM && filwidth_delay_index[1] >= 0) { //only for extruder with filament sensor and if ring buffer is initialized
const int MMD_CM = MAX_MEASUREMENT_DELAY + 1, MMD_MM = MMD_CM * 10;
@ -883,16 +883,16 @@ void Planner::check_axes_activity() {
while (filwidth_delay_dist >= MMD_MM) filwidth_delay_dist -= MMD_MM;
// Convert into an index into the measurement array
filwidth_delay_index1 = (int)(filwidth_delay_dist * 0.1 + 0.0001);
filwidth_delay_index[0] = (int)(filwidth_delay_dist * 0.1 + 0.0001);
// If the index has changed (must have gone forward)...
if (filwidth_delay_index1 != filwidth_delay_index2) {
if (filwidth_delay_index[0] != filwidth_delay_index[1]) {
filwidth_e_count = 0; // Reset the E movement counter
int8_t meas_sample = thermalManager.widthFil_to_size_ratio() - 100; // Subtract 100 to reduce magnitude - to store in a signed char
do {
filwidth_delay_index2 = (filwidth_delay_index2 + 1) % MMD_CM; // The next unused slot
measurement_delay[filwidth_delay_index2] = meas_sample; // Store the measurement
} while (filwidth_delay_index1 != filwidth_delay_index2); // More slots to fill?
filwidth_delay_index[1] = (filwidth_delay_index[1] + 1) % MMD_CM; // The next unused slot
measurement_delay[filwidth_delay_index[1]] = meas_sample; // Store the measurement
} while (filwidth_delay_index[0] != filwidth_delay_index[1]); // More slots to fill?
}
}
}

2
Marlin/temperature.cpp
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@ -755,7 +755,7 @@ void Temperature::manage_heater() {
// Control the extruder rate based on the width sensor
#if ENABLED(FILAMENT_WIDTH_SENSOR)
if (filament_sensor) {
meas_shift_index = filwidth_delay_index1 - meas_delay_cm;
meas_shift_index = filwidth_delay_index[0] - meas_delay_cm;
if (meas_shift_index < 0) meas_shift_index += MAX_MEASUREMENT_DELAY + 1; //loop around buffer if needed
// Get the delayed info and add 100 to reconstitute to a percent of