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Comment, fix filament width sensor

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This commit is contained in:
Scott Lahteine
2017-12-13 02:32:34 -06:00
parent a641992c1d
commit cf2193c07f
8 changed files with 69 additions and 47 deletions
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41
Marlin/src/module/temperature.cpp
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@ -740,17 +740,6 @@ float Temperature::get_pid_output(const int8_t e) {
* - Apply filament width to the extrusion rate (may move)
* - Update the heated bed PID output value
*/
/**
* The following line SOMETIMES results in the dreaded "unable to find a register to spill in class 'POINTER_REGS'"
* compile error.
* thermal_runaway_protection(&thermal_runaway_state_machine[e], &thermal_runaway_timer[e], current_temperature[e], target_temperature[e], e, THERMAL_PROTECTION_PERIOD, THERMAL_PROTECTION_HYSTERESIS);
*
* This is due to a bug in the C++ compiler used by the Arduino IDE from 1.6.10 to at least 1.8.1.
*
* The work around is to add the compiler flag "__attribute__((__optimize__("O2")))" to the declaration for manage_heater()
*/
//void Temperature::manage_heater() __attribute__((__optimize__("O2")));
void Temperature::manage_heater() {
if (!temp_meas_ready) return;
@ -805,18 +794,16 @@ void Temperature::manage_heater() {
}
#endif
// Control the extruder rate based on the width sensor
#if ENABLED(FILAMENT_WIDTH_SENSOR)
/**
* Filament Width Sensor dynamically sets the volumetric multiplier
* based on a delayed measurement of the filament diameter.
*/
if (filament_sensor) {
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
meas_shift_index = constrain(meas_shift_index, 0, MAX_MEASUREMENT_DELAY);
// Get the delayed info and add 100 to reconstitute to a percent of
// the nominal filament diameter then square it to get an area
const float vmroot = measurement_delay[meas_shift_index] * 0.01 + 1.0;
planner.volumetric_multiplier[FILAMENT_SENSOR_EXTRUDER_NUM] = vmroot <= 0.1 ? 0.01 : sq(vmroot);
planner.refresh_e_factor(FILAMENT_SENSOR_EXTRUDER_NUM);
calculate_volumetric_for_width_sensor(measurement_delay[meas_shift_index])
}
#endif // FILAMENT_WIDTH_SENSOR
@ -1004,12 +991,18 @@ void Temperature::updateTemperaturesFromRawValues() {
return current_raw_filwidth * 5.0 * (1.0 / 16383.0);
}
// Convert raw Filament Width to a ratio
int Temperature::widthFil_to_size_ratio() {
float temp = filament_width_meas;
if (temp < MEASURED_LOWER_LIMIT) temp = filament_width_nominal; // Assume a bad sensor reading
else NOMORE(temp, MEASURED_UPPER_LIMIT);
return filament_width_nominal / temp * 100;
/**
* Convert Filament Width (mm) to a simple ratio
* and reduce to an 8 bit value.
*
* A nominal width of 1.75 and measured width of 1.73
* gives (100 * 1.75 / 1.73) for a ratio of 101 and
* a return value of 1.
*/
int8_t Temperature::widthFil_to_size_ratio() {
if (WITHIN(filament_width_meas, MEASURED_LOWER_LIMIT, MEASURED_UPPER_LIMIT))
return int(100.0 * filament_width_nominal / filament_width_meas) - 100;
return 0;
}
#endif