/**
* print_line_from_here_to_there() takes two cartesian coordinates and draws a line from one
* to the other. But there are really three sets of coordinates involved. The first coordinate
* is the present location of the nozzle. We don't necessarily want to print from this location.
* We first need to move the nozzle to the start of line segment where we want to print. Once
* there, we can use the two coordinates supplied to draw the line.
*
* Note: Although we assume the first set of coordinates is the start of the line and the second
* set of coordinates is the end of the line, it does not always work out that way. This function
* optimizes the movement to minimize the travel distance before it can start printing. This saves
* a lot of time and eliminates a lot of nonsensical movement of the nozzle. However, it does
* cause a lot of very little short retracement of th nozzle when it draws the very first line
* segment of a 'circle'. The time this requires is very short and is easily saved by the other
* cases where the optimization comes into play.
*/
void print_line_from_here_to_there(const float &sx, const float &sy, const float &sz, const float &ex, const float &ey, const float &ez) {
const float dx_s = current_position[X_AXIS] - sx, // find our distance from the start of the actual line segment
dy_s = current_position[Y_AXIS] - sy,
dist_start = HYPOT2(dx_s, dy_s), // We don't need to do a sqrt(), we can compare the distance^2
// to save computation time
dx_e = current_position[X_AXIS] - ex, // find our distance from the end of the actual line segment
dy_e = current_position[Y_AXIS] - ey,
dist_end = HYPOT2(dx_e, dy_e),
line_length = HYPOT(ex - sx, ey - sy);
// If the end point of the line is closer to the nozzle, flip the direction,
// moving from the end to the start. On very small lines the optimization isn't worth it.
if (dist_end < dist_start && (INTERSECTION_CIRCLE_RADIUS) < ABS(line_length))
return print_line_from_here_to_there(ex, ey, ez, sx, sy, sz);
// Decide whether to retract & bump
if (dist_start > 2.0) {
retract_filament(destination);
//todo: parameterize the bump height with a define
move_to(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS] + 0.500, 0.0); // Z bump to minimize scraping
move_to(sx, sy, sz + 0.500, 0.0); // Get to the starting point with no extrusion while bumped
}
move_to(sx, sy, sz, 0.0); // Get to the starting point with no extrusion / un-Z bump
const float e_pos_delta = line_length * g26_e_axis_feedrate * g26_extrusion_multiplier;
recover_filament(destination);
move_to(ex, ey, ez, e_pos_delta); // Get to the ending point with an appropriate amount of extrusion
}
/**
* print_line_from_here_to_there() takes two cartesian coordinates and draws a line from one
* to the other. But there are really three sets of coordinates involved. The first coordinate
* is the present location of the nozzle. We don't necessarily want to print from this location.
* We first need to move the nozzle to the start of line segment where we want to print. Once
* there, we can use the two coordinates supplied to draw the line.
*
* Note: Although we assume the first set of coordinates is the start of the line and the second
* set of coordinates is the end of the line, it does not always work out that way. This function
* optimizes the movement to minimize the travel distance before it can start printing. This saves
* a lot of time and eleminates a lot of non-sensical movement of the nozzle. However, it does
* cause a lot of very little short retracement of th nozzle when it draws the very first line
* segment of a 'circle'. The time this requires is very short and is easily saved by the other
* cases where the optimization comes into play.
*/
void print_line_from_here_to_there(const float &sx, const float &sy, const float &sz, const float &ex, const float &ey, const float &ez) {
const float dx_s = current_position[X_AXIS] - sx, // find our distance from the start of the actual line segment
dy_s = current_position[Y_AXIS] - sy,
dist_start = HYPOT2(dx_s, dy_s), // We don't need to do a sqrt(), we can compare the distance^2
// to save computation time
dx_e = current_position[X_AXIS] - ex, // find our distance from the end of the actual line segment
dy_e = current_position[Y_AXIS] - ey,
dist_end = HYPOT2(dx_e, dy_e),
line_length = HYPOT(ex - sx, ey - sy);
// If the end point of the line is closer to the nozzle, flip the direction,
// moving from the end to the start. On very small lines the optimization isn't worth it.
if (dist_end < dist_start && (SIZE_OF_INTERSECTION_CIRCLES) < abs(line_length)) {
//if (ubl.g26_debug_flag) SERIAL_ECHOLNPGM(" Reversing start and end of print_line_from_here_to_there()");
return print_line_from_here_to_there(ex, ey, ez, sx, sy, sz);
}
// Decide whether to retract.
if (dist_start > 2.0) {
retract_filament(destination);
//if (ubl.g26_debug_flag) SERIAL_ECHOLNPGM(" filament retracted.");
}
move_to(sx, sy, sz, 0.0); // Get to the starting point with no extrusion
const float e_pos_delta = line_length * g26_e_axis_feedrate * extrusion_multiplier;
un_retract_filament(destination);
//if (ubl.g26_debug_flag) {
// SERIAL_ECHOLNPGM(" doing printing move.");
// debug_current_and_destination(PSTR("doing final move_to() inside print_line_from_here_to_there()"));
//}
move_to(ex, ey, ez, e_pos_delta); // Get to the ending point with an appropriate amount of extrusion
}
/**
* G26: Mesh Validation Pattern generation.
*
* Used to interactively edit the mesh by placing the
* nozzle in a problem area and doing a G29 P4 R command.
*
* Parameters:
*
* B Bed Temperature
* C Continue from the Closest mesh point
* D Disable leveling before starting
* F Filament diameter
* H Hotend Temperature
* K Keep heaters on when completed
* L Layer Height
* O Ooze extrusion length
* P Prime length
* Q Retraction multiplier
* R Repetitions (number of grid points)
* S Nozzle Size (diameter) in mm
* T Tool index to change to, if included
* U Random deviation (50 if no value given)
* X X position
* Y Y position
*/
void GcodeSuite::G26() {
SERIAL_ECHOLNPGM("G26 starting...");
// Don't allow Mesh Validation without homing first,
// or if the parameter parsing did not go OK, abort
if (axis_unhomed_error()) return;
// Change the tool first, if specified
if (parser.seenval('T')) tool_change(parser.value_int());
g26_extrusion_multiplier = EXTRUSION_MULTIPLIER;
g26_retraction_multiplier = RETRACTION_MULTIPLIER;
g26_layer_height = MESH_TEST_LAYER_HEIGHT;
g26_prime_length = PRIME_LENGTH;
g26_bed_temp = MESH_TEST_BED_TEMP;
g26_hotend_temp = MESH_TEST_HOTEND_TEMP;
g26_prime_flag = 0;
float g26_nozzle = MESH_TEST_NOZZLE_SIZE,
g26_filament_diameter = DEFAULT_NOMINAL_FILAMENT_DIA,
g26_ooze_amount = parser.linearval('O', OOZE_AMOUNT);
bool g26_continue_with_closest = parser.boolval('C'),
g26_keep_heaters_on = parser.boolval('K');
if (parser.seenval('B')) {
g26_bed_temp = parser.value_celsius();
if (g26_bed_temp && !WITHIN(g26_bed_temp, 40, 140)) {
SERIAL_ECHOLNPGM("?Specified bed temperature not plausible (40-140C).");
return;
}
}
if (parser.seenval('L')) {
g26_layer_height = parser.value_linear_units();
if (!WITHIN(g26_layer_height, 0.0, 2.0)) {
SERIAL_ECHOLNPGM("?Specified layer height not plausible.");
return;
}
}
if (parser.seen('Q')) {
if (parser.has_value()) {
g26_retraction_multiplier = parser.value_float();
if (!WITHIN(g26_retraction_multiplier, 0.05, 15.0)) {
SERIAL_ECHOLNPGM("?Specified Retraction Multiplier not plausible.");
return;
}
}
else {
SERIAL_ECHOLNPGM("?Retraction Multiplier must be specified.");
return;
}
}
if (parser.seenval('S')) {
g26_nozzle = parser.value_float();
if (!WITHIN(g26_nozzle, 0.1, 1.0)) {
SERIAL_ECHOLNPGM("?Specified nozzle size not plausible.");
return;
}
}
if (parser.seen('P')) {
if (!parser.has_value()) {
#if HAS_LCD_MENU
g26_prime_flag = -1;
#else
SERIAL_ECHOLNPGM("?Prime length must be specified when not using an LCD.");
return;
#endif
}
else {
g26_prime_flag++;
g26_prime_length = parser.value_linear_units();
if (!WITHIN(g26_prime_length, 0.0, 25.0)) {
SERIAL_ECHOLNPGM("?Specified prime length not plausible.");
return;
}
}
}
if (parser.seenval('F')) {
g26_filament_diameter = parser.value_linear_units();
if (!WITHIN(g26_filament_diameter, 1.0, 4.0)) {
SERIAL_ECHOLNPGM("?Specified filament size not plausible.");
return;
}
}
g26_extrusion_multiplier *= sq(1.75) / sq(g26_filament_diameter); // If we aren't using 1.75mm filament, we need to
// scale up or down the length needed to get the
// same volume of filament
g26_extrusion_multiplier *= g26_filament_diameter * sq(g26_nozzle) / sq(0.3); // Scale up by nozzle size
if (parser.seenval('H')) {
g26_hotend_temp = parser.value_celsius();
if (!WITHIN(g26_hotend_temp, 165, 280)) {
SERIAL_ECHOLNPGM("?Specified nozzle temperature not plausible.");
return;
}
}
if (parser.seen('U')) {
randomSeed(millis());
// This setting will persist for the next G26
random_deviation = parser.has_value() ? parser.value_float() : 50.0;
}
int16_t g26_repeats;
#if HAS_LCD_MENU
g26_repeats = parser.intval('R', GRID_MAX_POINTS + 1);
#else
if (!parser.seen('R')) {
SERIAL_ECHOLNPGM("?(R)epeat must be specified when not using an LCD.");
return;
}
else
g26_repeats = parser.has_value() ? parser.value_int() : GRID_MAX_POINTS + 1;
#endif
if (g26_repeats < 1) {
SERIAL_ECHOLNPGM("?(R)epeat value not plausible; must be at least 1.");
return;
}
g26_x_pos = parser.seenval('X') ? RAW_X_POSITION(parser.value_linear_units()) : current_position[X_AXIS];
g26_y_pos = parser.seenval('Y') ? RAW_Y_POSITION(parser.value_linear_units()) : current_position[Y_AXIS];
if (!position_is_reachable(g26_x_pos, g26_y_pos)) {
SERIAL_ECHOLNPGM("?Specified X,Y coordinate out of bounds.");
return;
}
/**
* Wait until all parameters are verified before altering the state!
*/
set_bed_leveling_enabled(!parser.seen('D'));
if (current_position[Z_AXIS] < Z_CLEARANCE_BETWEEN_PROBES) {
do_blocking_move_to_z(Z_CLEARANCE_BETWEEN_PROBES);
set_current_from_destination();
}
if (turn_on_heaters() != G26_OK) goto LEAVE;
current_position[E_AXIS] = 0.0;
sync_plan_position_e();
if (g26_prime_flag && prime_nozzle() != G26_OK) goto LEAVE;
/**
* Bed is preheated
*
* Nozzle is at temperature
*
* Filament is primed!
*
* It's "Show Time" !!!
*/
ZERO(circle_flags);
ZERO(horizontal_mesh_line_flags);
ZERO(vertical_mesh_line_flags);
// Move nozzle to the specified height for the first layer
set_destination_from_current();
destination[Z_AXIS] = g26_layer_height;
move_to(destination, 0.0);
move_to(destination, g26_ooze_amount);
#if HAS_LCD_MENU
ui.capture();
#endif
//debug_current_and_destination(PSTR("Starting G26 Mesh Validation Pattern."));
#if DISABLED(ARC_SUPPORT)
/**
* Pre-generate radius offset values at 30 degree intervals to reduce CPU load.
*/
#define A_INT 30
#define _ANGS (360 / A_INT)
#define A_CNT (_ANGS / 2)
#define _IND(A) ((A + _ANGS * 8) % _ANGS)
#define _COS(A) (trig_table[_IND(A) % A_CNT] * (_IND(A) >= A_CNT ? -1 : 1))
#define _SIN(A) (-_COS((A + A_CNT / 2) % _ANGS))
#if A_CNT & 1
#error "A_CNT must be a positive value. Please change A_INT."
#endif
float trig_table[A_CNT];
for (uint8_t i = 0; i < A_CNT; i++)
trig_table[i] = INTERSECTION_CIRCLE_RADIUS * cos(RADIANS(i * A_INT));
#endif // !ARC_SUPPORT
mesh_index_pair location;
do {
location = g26_continue_with_closest
? find_closest_circle_to_print(current_position[X_AXIS], current_position[Y_AXIS])
: find_closest_circle_to_print(g26_x_pos, g26_y_pos); // Find the closest Mesh Intersection to where we are now.
if (location.x_index >= 0 && location.y_index >= 0) {
const float circle_x = _GET_MESH_X(location.x_index),
circle_y = _GET_MESH_Y(location.y_index);
// If this mesh location is outside the printable_radius, skip it.
if (!position_is_reachable(circle_x, circle_y)) continue;
// Determine where to start and end the circle,
// which is always drawn counter-clockwise.
const uint8_t xi = location.x_index, yi = location.y_index;
const bool f = yi == 0, r = xi >= GRID_MAX_POINTS_X - 1, b = yi >= GRID_MAX_POINTS_Y - 1;
#if ENABLED(ARC_SUPPORT)
#define ARC_LENGTH(quarters) (INTERSECTION_CIRCLE_RADIUS * M_PI * (quarters) / 2)
float sx = circle_x + INTERSECTION_CIRCLE_RADIUS, // default to full circle
ex = circle_x + INTERSECTION_CIRCLE_RADIUS,
sy = circle_y, ey = circle_y,
arc_length = ARC_LENGTH(4);
// Figure out where to start and end the arc - we always print counterclockwise
if (xi == 0) { // left edge
sx = f ? circle_x + INTERSECTION_CIRCLE_RADIUS : circle_x;
ex = b ? circle_x + INTERSECTION_CIRCLE_RADIUS : circle_x;
sy = f ? circle_y : circle_y - (INTERSECTION_CIRCLE_RADIUS);
ey = b ? circle_y : circle_y + INTERSECTION_CIRCLE_RADIUS;
arc_length = (f || b) ? ARC_LENGTH(1) : ARC_LENGTH(2);
}
else if (r) { // right edge
sx = b ? circle_x - (INTERSECTION_CIRCLE_RADIUS) : circle_x;
ex = f ? circle_x - (INTERSECTION_CIRCLE_RADIUS) : circle_x;
sy = b ? circle_y : circle_y + INTERSECTION_CIRCLE_RADIUS;
ey = f ? circle_y : circle_y - (INTERSECTION_CIRCLE_RADIUS);
arc_length = (f || b) ? ARC_LENGTH(1) : ARC_LENGTH(2);
}
else if (f) {
sx = circle_x + INTERSECTION_CIRCLE_RADIUS;
ex = circle_x - (INTERSECTION_CIRCLE_RADIUS);
sy = ey = circle_y;
arc_length = ARC_LENGTH(2);
}
else if (b) {
sx = circle_x - (INTERSECTION_CIRCLE_RADIUS);
ex = circle_x + INTERSECTION_CIRCLE_RADIUS;
sy = ey = circle_y;
arc_length = ARC_LENGTH(2);
}
const float arc_offset[2] = {
circle_x - sx,
circle_y - sy
};
const float dx_s = current_position[X_AXIS] - sx, // find our distance from the start of the actual circle
dy_s = current_position[Y_AXIS] - sy,
dist_start = HYPOT2(dx_s, dy_s);
const float endpoint[XYZE] = {
ex, ey,
g26_layer_height,
current_position[E_AXIS] + (arc_length * g26_e_axis_feedrate * g26_extrusion_multiplier)
};
if (dist_start > 2.0) {
retract_filament(destination);
//todo: parameterize the bump height with a define
move_to(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS] + 0.500, 0.0); // Z bump to minimize scraping
move_to(sx, sy, g26_layer_height + 0.500, 0.0); // Get to the starting point with no extrusion while bumped
}
move_to(sx, sy, g26_layer_height, 0.0); // Get to the starting point with no extrusion / un-Z bump
recover_filament(destination);
const float save_feedrate = feedrate_mm_s;
feedrate_mm_s = PLANNER_XY_FEEDRATE() / 10.0;
if (g26_debug_flag) {
SERIAL_ECHOPAIR(" plan_arc(ex=", endpoint[X_AXIS]);
SERIAL_ECHOPAIR(", ey=", endpoint[Y_AXIS]);
SERIAL_ECHOPAIR(", ez=", endpoint[Z_AXIS]);
SERIAL_ECHOPAIR(", len=", arc_length);
SERIAL_ECHOPAIR(") -> (ex=", current_position[X_AXIS]);
SERIAL_ECHOPAIR(", ey=", current_position[Y_AXIS]);
SERIAL_ECHOPAIR(", ez=", current_position[Z_AXIS]);
SERIAL_CHAR(')');
SERIAL_EOL();
}
plan_arc(endpoint, arc_offset, false); // Draw a counter-clockwise arc
feedrate_mm_s = save_feedrate;
set_destination_from_current();
#if HAS_LCD_MENU
if (user_canceled()) goto LEAVE; // Check if the user wants to stop the Mesh Validation
#endif
#else // !ARC_SUPPORT
int8_t start_ind = -2, end_ind = 9; // Assume a full circle (from 5:00 to 5:00)
if (xi == 0) { // Left edge? Just right half.
start_ind = f ? 0 : -3; // 03:00 to 12:00 for front-left
end_ind = b ? 0 : 2; // 06:00 to 03:00 for back-left
}
else if (r) { // Right edge? Just left half.
start_ind = b ? 6 : 3; // 12:00 to 09:00 for front-right
end_ind = f ? 5 : 8; // 09:00 to 06:00 for back-right
}
else if (f) { // Front edge? Just back half.
start_ind = 0; // 03:00
end_ind = 5; // 09:00
}
else if (b) { // Back edge? Just front half.
start_ind = 6; // 09:00
end_ind = 11; // 03:00
}
for (int8_t ind = start_ind; ind <= end_ind; ind++) {
#if HAS_LCD_MENU
if (user_canceled()) goto LEAVE; // Check if the user wants to stop the Mesh Validation
#endif
float rx = circle_x + _COS(ind), // For speed, these are now a lookup table entry
ry = circle_y + _SIN(ind),
xe = circle_x + _COS(ind + 1),
ye = circle_y + _SIN(ind + 1);
#if IS_KINEMATIC
// Check to make sure this segment is entirely on the bed, skip if not.
if (!position_is_reachable(rx, ry) || !position_is_reachable(xe, ye)) continue;
#else // not, we need to skip
rx = constrain(rx, X_MIN_POS + 1, X_MAX_POS - 1); // This keeps us from bumping the endstops
ry = constrain(ry, Y_MIN_POS + 1, Y_MAX_POS - 1);
xe = constrain(xe, X_MIN_POS + 1, X_MAX_POS - 1);
ye = constrain(ye, Y_MIN_POS + 1, Y_MAX_POS - 1);
#endif
print_line_from_here_to_there(rx, ry, g26_layer_height, xe, ye, g26_layer_height);
SERIAL_FLUSH(); // Prevent host M105 buffer overrun.
}
#endif // !ARC_SUPPORT
if (look_for_lines_to_connect()) goto LEAVE;
}
SERIAL_FLUSH(); // Prevent host M105 buffer overrun.
} while (--g26_repeats && location.x_index >= 0 && location.y_index >= 0);
LEAVE:
ui.set_status_P(PSTR("Leaving G26"), -1);
retract_filament(destination);
destination[Z_AXIS] = Z_CLEARANCE_BETWEEN_PROBES;
//debug_current_and_destination(PSTR("ready to do Z-Raise."));
move_to(destination, 0); // Raise the nozzle
//debug_current_and_destination(PSTR("done doing Z-Raise."));
destination[X_AXIS] = g26_x_pos; // Move back to the starting position
destination[Y_AXIS] = g26_y_pos;
//destination[Z_AXIS] = Z_CLEARANCE_BETWEEN_PROBES; // Keep the nozzle where it is
move_to(destination, 0); // Move back to the starting position
//debug_current_and_destination(PSTR("done doing X/Y move."));
#if HAS_LCD_MENU
ui.release(); // Give back control of the LCD
#endif
if (!g26_keep_heaters_on) {
#if HAS_HEATED_BED
thermalManager.setTargetBed(0);
#endif
thermalManager.setTargetHotend(active_extruder, 0);
}
}
inline bool look_for_lines_to_connect() {
float sx, sy, ex, ey;
for (uint8_t i = 0; i < GRID_MAX_POINTS_X; i++) {
for (uint8_t j = 0; j < GRID_MAX_POINTS_Y; j++) {
#if HAS_LCD_MENU
if (user_canceled()) return true; // Check if the user wants to stop the Mesh Validation
#endif
if (i < GRID_MAX_POINTS_X) { // We can't connect to anything to the right than GRID_MAX_POINTS_X.
// This is already a half circle because we are at the edge of the bed.
if (is_bitmap_set(circle_flags, i, j) && is_bitmap_set(circle_flags, i + 1, j)) { // check if we can do a line to the left
if (!is_bitmap_set(horizontal_mesh_line_flags, i, j)) {
//
// We found two circles that need a horizontal line to connect them
// Print it!
//
sx = _GET_MESH_X( i ) + (INTERSECTION_CIRCLE_RADIUS - (CROSSHAIRS_SIZE)); // right edge
ex = _GET_MESH_X(i + 1) - (INTERSECTION_CIRCLE_RADIUS - (CROSSHAIRS_SIZE)); // left edge
sx = constrain(sx, X_MIN_POS + 1, X_MAX_POS - 1);
sy = ey = constrain(_GET_MESH_Y(j), Y_MIN_POS + 1, Y_MAX_POS - 1);
ex = constrain(ex, X_MIN_POS + 1, X_MAX_POS - 1);
if (position_is_reachable(sx, sy) && position_is_reachable(ex, ey)) {
if (g26_debug_flag) {
SERIAL_ECHOPAIR(" Connecting with horizontal line (sx=", sx);
SERIAL_ECHOPAIR(", sy=", sy);
SERIAL_ECHOPAIR(") -> (ex=", ex);
SERIAL_ECHOPAIR(", ey=", ey);
SERIAL_CHAR(')');
SERIAL_EOL();
//debug_current_and_destination(PSTR("Connecting horizontal line."));
}
print_line_from_here_to_there(sx, sy, g26_layer_height, ex, ey, g26_layer_height);
}
bitmap_set(horizontal_mesh_line_flags, i, j); // Mark it as done so we don't do it again, even if we skipped it
}
}
if (j < GRID_MAX_POINTS_Y) { // We can't connect to anything further back than GRID_MAX_POINTS_Y.
// This is already a half circle because we are at the edge of the bed.
if (is_bitmap_set(circle_flags, i, j) && is_bitmap_set(circle_flags, i, j + 1)) { // check if we can do a line straight down
if (!is_bitmap_set( vertical_mesh_line_flags, i, j)) {
//
// We found two circles that need a vertical line to connect them
// Print it!
//
sy = _GET_MESH_Y( j ) + (INTERSECTION_CIRCLE_RADIUS - (CROSSHAIRS_SIZE)); // top edge
ey = _GET_MESH_Y(j + 1) - (INTERSECTION_CIRCLE_RADIUS - (CROSSHAIRS_SIZE)); // bottom edge
sx = ex = constrain(_GET_MESH_X(i), X_MIN_POS + 1, X_MAX_POS - 1);
sy = constrain(sy, Y_MIN_POS + 1, Y_MAX_POS - 1);
ey = constrain(ey, Y_MIN_POS + 1, Y_MAX_POS - 1);
if (position_is_reachable(sx, sy) && position_is_reachable(ex, ey)) {
if (g26_debug_flag) {
SERIAL_ECHOPAIR(" Connecting with vertical line (sx=", sx);
SERIAL_ECHOPAIR(", sy=", sy);
SERIAL_ECHOPAIR(") -> (ex=", ex);
SERIAL_ECHOPAIR(", ey=", ey);
SERIAL_CHAR(')');
SERIAL_EOL();
#if ENABLED(AUTO_BED_LEVELING_UBL)
debug_current_and_destination(PSTR("Connecting vertical line."));
#endif
}
print_line_from_here_to_there(sx, sy, g26_layer_height, ex, ey, g26_layer_height);
}
bitmap_set(vertical_mesh_line_flags, i, j); // Mark it as done so we don't do it again, even if skipped
}
}
}
}
}
}
return false;
}
bool unified_bed_leveling::look_for_lines_to_connect() {
float sx, sy, ex, ey;
for (uint8_t i = 0; i < GRID_MAX_POINTS_X; i++) {
for (uint8_t j = 0; j < GRID_MAX_POINTS_Y; j++) {
#if ENABLED(NEWPANEL)
if (user_canceled()) return true; // Check if the user wants to stop the Mesh Validation
#endif
if (i < GRID_MAX_POINTS_X) { // We can't connect to anything to the right than GRID_MAX_POINTS_X.
// This is already a half circle because we are at the edge of the bed.
if (is_bit_set(circle_flags, i, j) && is_bit_set(circle_flags, i + 1, j)) { // check if we can do a line to the left
if (!is_bit_set(horizontal_mesh_line_flags, i, j)) {
//
// We found two circles that need a horizontal line to connect them
// Print it!
//
sx = mesh_index_to_xpos( i ) + (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // right edge
ex = mesh_index_to_xpos(i + 1) - (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // left edge
sx = constrain(sx, X_MIN_POS + 1, X_MAX_POS - 1);
sy = ey = constrain(mesh_index_to_ypos(j), Y_MIN_POS + 1, Y_MAX_POS - 1);
ex = constrain(ex, X_MIN_POS + 1, X_MAX_POS - 1);
if (position_is_reachable_raw_xy(sx, sy) && position_is_reachable_raw_xy(ex, ey)) {
if (g26_debug_flag) {
SERIAL_ECHOPAIR(" Connecting with horizontal line (sx=", sx);
SERIAL_ECHOPAIR(", sy=", sy);
SERIAL_ECHOPAIR(") -> (ex=", ex);
SERIAL_ECHOPAIR(", ey=", ey);
SERIAL_CHAR(')');
SERIAL_EOL();
//debug_current_and_destination(PSTR("Connecting horizontal line."));
}
print_line_from_here_to_there(LOGICAL_X_POSITION(sx), LOGICAL_Y_POSITION(sy), g26_layer_height, LOGICAL_X_POSITION(ex), LOGICAL_Y_POSITION(ey), g26_layer_height);
}
bit_set(horizontal_mesh_line_flags, i, j); // Mark it as done so we don't do it again, even if we skipped it
}
}
if (j < GRID_MAX_POINTS_Y) { // We can't connect to anything further back than GRID_MAX_POINTS_Y.
// This is already a half circle because we are at the edge of the bed.
if (is_bit_set(circle_flags, i, j) && is_bit_set(circle_flags, i, j + 1)) { // check if we can do a line straight down
if (!is_bit_set( vertical_mesh_line_flags, i, j)) {
//
// We found two circles that need a vertical line to connect them
// Print it!
//
sy = mesh_index_to_ypos( j ) + (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // top edge
ey = mesh_index_to_ypos(j + 1) - (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // bottom edge
sx = ex = constrain(mesh_index_to_xpos(i), X_MIN_POS + 1, X_MAX_POS - 1);
sy = constrain(sy, Y_MIN_POS + 1, Y_MAX_POS - 1);
ey = constrain(ey, Y_MIN_POS + 1, Y_MAX_POS - 1);
if (position_is_reachable_raw_xy(sx, sy) && position_is_reachable_raw_xy(ex, ey)) {
if (g26_debug_flag) {
SERIAL_ECHOPAIR(" Connecting with vertical line (sx=", sx);
SERIAL_ECHOPAIR(", sy=", sy);
SERIAL_ECHOPAIR(") -> (ex=", ex);
SERIAL_ECHOPAIR(", ey=", ey);
SERIAL_CHAR(')');
SERIAL_EOL();
debug_current_and_destination(PSTR("Connecting vertical line."));
}
print_line_from_here_to_there(LOGICAL_X_POSITION(sx), LOGICAL_Y_POSITION(sy), g26_layer_height, LOGICAL_X_POSITION(ex), LOGICAL_Y_POSITION(ey), g26_layer_height);
}
bit_set(vertical_mesh_line_flags, i, j); // Mark it as done so we don't do it again, even if skipped
}
}
}
}
}
}
return false;
}
/**
* G26: Mesh Validation Pattern generation.
*
* Used to interactively edit UBL's Mesh by placing the
* nozzle in a problem area and doing a G29 P4 R command.
*/
void unified_bed_leveling::G26() {
SERIAL_ECHOLNPGM("G26 command started. Waiting for heater(s).");
float tmp, start_angle, end_angle;
int i, xi, yi;
mesh_index_pair location;
// Don't allow Mesh Validation without homing first,
// or if the parameter parsing did not go OK, abort
if (axis_unhomed_error() || parse_G26_parameters()) return;
if (current_position[Z_AXIS] < Z_CLEARANCE_BETWEEN_PROBES) {
do_blocking_move_to_z(Z_CLEARANCE_BETWEEN_PROBES);
stepper.synchronize();
set_current_to_destination();
}
if (turn_on_heaters()) goto LEAVE;
current_position[E_AXIS] = 0.0;
sync_plan_position_e();
if (g26_prime_flag && prime_nozzle()) goto LEAVE;
/**
* Bed is preheated
*
* Nozzle is at temperature
*
* Filament is primed!
*
* It's "Show Time" !!!
*/
ZERO(circle_flags);
ZERO(horizontal_mesh_line_flags);
ZERO(vertical_mesh_line_flags);
// Move nozzle to the specified height for the first layer
set_destination_to_current();
destination[Z_AXIS] = g26_layer_height;
move_to(destination, 0.0);
move_to(destination, g26_ooze_amount);
has_control_of_lcd_panel = true;
//debug_current_and_destination(PSTR("Starting G26 Mesh Validation Pattern."));
/**
* Declare and generate a sin() & cos() table to be used during the circle drawing. This will lighten
* the CPU load and make the arc drawing faster and more smooth
*/
float sin_table[360 / 30 + 1], cos_table[360 / 30 + 1];
for (i = 0; i <= 360 / 30; i++) {
cos_table[i] = SIZE_OF_INTERSECTION_CIRCLES * cos(RADIANS(valid_trig_angle(i * 30.0)));
sin_table[i] = SIZE_OF_INTERSECTION_CIRCLES * sin(RADIANS(valid_trig_angle(i * 30.0)));
}
do {
location = g26_continue_with_closest
? find_closest_circle_to_print(current_position[X_AXIS], current_position[Y_AXIS])
: find_closest_circle_to_print(g26_x_pos, g26_y_pos); // Find the closest Mesh Intersection to where we are now.
if (location.x_index >= 0 && location.y_index >= 0) {
const float circle_x = mesh_index_to_xpos(location.x_index),
circle_y = mesh_index_to_ypos(location.y_index);
// If this mesh location is outside the printable_radius, skip it.
if (!position_is_reachable_raw_xy(circle_x, circle_y)) continue;
xi = location.x_index; // Just to shrink the next few lines and make them easier to understand
yi = location.y_index;
if (g26_debug_flag) {
SERIAL_ECHOPAIR(" Doing circle at: (xi=", xi);
SERIAL_ECHOPAIR(", yi=", yi);
SERIAL_CHAR(')');
SERIAL_EOL();
}
start_angle = 0.0; // assume it is going to be a full circle
end_angle = 360.0;
if (xi == 0) { // Check for bottom edge
start_angle = -90.0;
end_angle = 90.0;
if (yi == 0) // it is an edge, check for the two left corners
start_angle = 0.0;
else if (yi == GRID_MAX_POINTS_Y - 1)
end_angle = 0.0;
}
else if (xi == GRID_MAX_POINTS_X - 1) { // Check for top edge
start_angle = 90.0;
end_angle = 270.0;
if (yi == 0) // it is an edge, check for the two right corners
end_angle = 180.0;
else if (yi == GRID_MAX_POINTS_Y - 1)
start_angle = 180.0;
}
else if (yi == 0) {
start_angle = 0.0; // only do the top side of the cirlce
end_angle = 180.0;
}
else if (yi == GRID_MAX_POINTS_Y - 1) {
start_angle = 180.0; // only do the bottom side of the cirlce
end_angle = 360.0;
}
for (tmp = start_angle; tmp < end_angle - 0.1; tmp += 30.0) {
#if ENABLED(NEWPANEL)
if (user_canceled()) goto LEAVE; // Check if the user wants to stop the Mesh Validation
#endif
int tmp_div_30 = tmp / 30.0;
if (tmp_div_30 < 0) tmp_div_30 += 360 / 30;
if (tmp_div_30 > 11) tmp_div_30 -= 360 / 30;
float x = circle_x + cos_table[tmp_div_30], // for speed, these are now a lookup table entry
y = circle_y + sin_table[tmp_div_30],
xe = circle_x + cos_table[tmp_div_30 + 1],
ye = circle_y + sin_table[tmp_div_30 + 1];
#if IS_KINEMATIC
// Check to make sure this segment is entirely on the bed, skip if not.
if (!position_is_reachable_raw_xy(x, y) || !position_is_reachable_raw_xy(xe, ye)) continue;
#else // not, we need to skip
x = constrain(x, X_MIN_POS + 1, X_MAX_POS - 1); // This keeps us from bumping the endstops
y = constrain(y, Y_MIN_POS + 1, Y_MAX_POS - 1);
xe = constrain(xe, X_MIN_POS + 1, X_MAX_POS - 1);
ye = constrain(ye, Y_MIN_POS + 1, Y_MAX_POS - 1);
#endif
//if (g26_debug_flag) {
// char ccc, *cptr, seg_msg[50], seg_num[10];
// strcpy(seg_msg, " segment: ");
// strcpy(seg_num, " \n");
// cptr = (char*) "01234567890ABCDEF????????";
// ccc = cptr[tmp_div_30];
// seg_num[1] = ccc;
// strcat(seg_msg, seg_num);
// debug_current_and_destination(seg_msg);
//}
print_line_from_here_to_there(LOGICAL_X_POSITION(x), LOGICAL_Y_POSITION(y), g26_layer_height, LOGICAL_X_POSITION(xe), LOGICAL_Y_POSITION(ye), g26_layer_height);
}
if (look_for_lines_to_connect())
goto LEAVE;
}
} while (--g26_repeats && location.x_index >= 0 && location.y_index >= 0);
LEAVE:
lcd_setstatusPGM(PSTR("Leaving G26"), -1);
retract_filament(destination);
destination[Z_AXIS] = Z_CLEARANCE_BETWEEN_PROBES;
//debug_current_and_destination(PSTR("ready to do Z-Raise."));
move_to(destination, 0); // Raise the nozzle
//debug_current_and_destination(PSTR("done doing Z-Raise."));
destination[X_AXIS] = g26_x_pos; // Move back to the starting position
destination[Y_AXIS] = g26_y_pos;
//destination[Z_AXIS] = Z_CLEARANCE_BETWEEN_PROBES; // Keep the nozzle where it is
move_to(destination, 0); // Move back to the starting position
//debug_current_and_destination(PSTR("done doing X/Y move."));
has_control_of_lcd_panel = false; // Give back control of the LCD Panel!
if (!g26_keep_heaters_on) {
#if HAS_TEMP_BED
thermalManager.setTargetBed(0);
#endif
thermalManager.setTargetHotend(0, 0);
}
}
void look_for_lines_to_connect() {
float sx, sy, ex, ey;
for (uint8_t i = 0; i < GRID_MAX_POINTS_X; i++) {
for (uint8_t j = 0; j < GRID_MAX_POINTS_Y; j++) {
if (i < GRID_MAX_POINTS_X) { // We can't connect to anything to the right than GRID_MAX_POINTS_X.
// This is already a half circle because we are at the edge of the bed.
if (is_bit_set(circle_flags, i, j) && is_bit_set(circle_flags, i + 1, j)) { // check if we can do a line to the left
if (!is_bit_set(horizontal_mesh_line_flags, i, j)) {
//
// We found two circles that need a horizontal line to connect them
// Print it!
//
sx = pgm_read_float(&ubl.mesh_index_to_xpos[ i ]) + (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // right edge
ex = pgm_read_float(&ubl.mesh_index_to_xpos[i + 1]) - (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // left edge
sx = constrain(sx, X_MIN_POS + 1, X_MAX_POS - 1);
sy = ey = constrain(pgm_read_float(&ubl.mesh_index_to_ypos[j]), Y_MIN_POS + 1, Y_MAX_POS - 1);
ex = constrain(ex, X_MIN_POS + 1, X_MAX_POS - 1);
if (ubl.g26_debug_flag) {
SERIAL_ECHOPAIR(" Connecting with horizontal line (sx=", sx);
SERIAL_ECHOPAIR(", sy=", sy);
SERIAL_ECHOPAIR(") -> (ex=", ex);
SERIAL_ECHOPAIR(", ey=", ey);
SERIAL_CHAR(')');
SERIAL_EOL;
//debug_current_and_destination(PSTR("Connecting horizontal line."));
}
print_line_from_here_to_there(LOGICAL_X_POSITION(sx), LOGICAL_Y_POSITION(sy), layer_height, LOGICAL_X_POSITION(ex), LOGICAL_Y_POSITION(ey), layer_height);
bit_set(horizontal_mesh_line_flags, i, j); // Mark it as done so we don't do it again
}
}
if (j < GRID_MAX_POINTS_Y) { // We can't connect to anything further back than GRID_MAX_POINTS_Y.
// This is already a half circle because we are at the edge of the bed.
if (is_bit_set(circle_flags, i, j) && is_bit_set(circle_flags, i, j + 1)) { // check if we can do a line straight down
if (!is_bit_set( vertical_mesh_line_flags, i, j)) {
//
// We found two circles that need a vertical line to connect them
// Print it!
//
sy = pgm_read_float(&ubl.mesh_index_to_ypos[ j ]) + (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // top edge
ey = pgm_read_float(&ubl.mesh_index_to_ypos[j + 1]) - (SIZE_OF_INTERSECTION_CIRCLES - (SIZE_OF_CROSSHAIRS)); // bottom edge
sx = ex = constrain(pgm_read_float(&ubl.mesh_index_to_xpos[i]), X_MIN_POS + 1, X_MAX_POS - 1);
sy = constrain(sy, Y_MIN_POS + 1, Y_MAX_POS - 1);
ey = constrain(ey, Y_MIN_POS + 1, Y_MAX_POS - 1);
if (ubl.g26_debug_flag) {
SERIAL_ECHOPAIR(" Connecting with vertical line (sx=", sx);
SERIAL_ECHOPAIR(", sy=", sy);
SERIAL_ECHOPAIR(") -> (ex=", ex);
SERIAL_ECHOPAIR(", ey=", ey);
SERIAL_CHAR(')');
SERIAL_EOL;
debug_current_and_destination(PSTR("Connecting vertical line."));
}
print_line_from_here_to_there(LOGICAL_X_POSITION(sx), LOGICAL_Y_POSITION(sy), layer_height, LOGICAL_X_POSITION(ex), LOGICAL_Y_POSITION(ey), layer_height);
bit_set(vertical_mesh_line_flags, i, j); // Mark it as done so we don't do it again
}
}
}
}
}
}
}
/**
* G26: Mesh Validation Pattern generation.
*
* Used to interactively edit UBL's Mesh by placing the
* nozzle in a problem area and doing a G29 P4 R command.
*/
void gcode_G26() {
SERIAL_ECHOLNPGM("G26 command started. Waiting for heater(s).");
float tmp, start_angle, end_angle;
int i, xi, yi;
mesh_index_pair location;
// Don't allow Mesh Validation without homing first,
// or if the parameter parsing did not go OK, abort
if (axis_unhomed_error(true, true, true) || parse_G26_parameters()) return;
if (current_position[Z_AXIS] < Z_CLEARANCE_BETWEEN_PROBES) {
do_blocking_move_to_z(Z_CLEARANCE_BETWEEN_PROBES);
stepper.synchronize();
set_current_to_destination();
}
if (turn_on_heaters()) goto LEAVE;
current_position[E_AXIS] = 0.0;
sync_plan_position_e();
if (prime_flag && prime_nozzle()) goto LEAVE;
/**
* Bed is preheated
*
* Nozzle is at temperature
*
* Filament is primed!
*
* It's "Show Time" !!!
*/
ZERO(circle_flags);
ZERO(horizontal_mesh_line_flags);
ZERO(vertical_mesh_line_flags);
// Move nozzle to the specified height for the first layer
set_destination_to_current();
destination[Z_AXIS] = layer_height;
move_to(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], 0.0);
move_to(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], ooze_amount);
ubl.has_control_of_lcd_panel = true;
//debug_current_and_destination(PSTR("Starting G26 Mesh Validation Pattern."));
/**
* Declare and generate a sin() & cos() table to be used during the circle drawing. This will lighten
* the CPU load and make the arc drawing faster and more smooth
*/
float sin_table[360 / 30 + 1], cos_table[360 / 30 + 1];
for (i = 0; i <= 360 / 30; i++) {
cos_table[i] = SIZE_OF_INTERSECTION_CIRCLES * cos(RADIANS(valid_trig_angle(i * 30.0)));
sin_table[i] = SIZE_OF_INTERSECTION_CIRCLES * sin(RADIANS(valid_trig_angle(i * 30.0)));
}
do {
if (ubl_lcd_clicked()) { // Check if the user wants to stop the Mesh Validation
#if ENABLED(ULTRA_LCD)
lcd_setstatuspgm(PSTR("Mesh Validation Stopped."), 99);
lcd_quick_feedback();
#endif
while (!ubl_lcd_clicked()) { // Wait until the user is done pressing the
idle(); // Encoder Wheel if that is why we are leaving
lcd_reset_alert_level();
lcd_setstatuspgm(PSTR(""));
}
while (ubl_lcd_clicked()) { // Wait until the user is done pressing the
idle(); // Encoder Wheel if that is why we are leaving
lcd_setstatuspgm(PSTR("Unpress Wheel"), 99);
}
goto LEAVE;
}
location = continue_with_closest
? find_closest_circle_to_print(current_position[X_AXIS], current_position[Y_AXIS])
: find_closest_circle_to_print(x_pos, y_pos); // Find the closest Mesh Intersection to where we are now.
if (location.x_index >= 0 && location.y_index >= 0) {
const float circle_x = pgm_read_float(&ubl.mesh_index_to_xpos[location.x_index]),
circle_y = pgm_read_float(&ubl.mesh_index_to_ypos[location.y_index]);
// Let's do a couple of quick sanity checks. We can pull this code out later if we never see it catch a problem
#ifdef DELTA
if (HYPOT2(circle_x, circle_y) > sq(DELTA_PRINTABLE_RADIUS)) {
SERIAL_ERROR_START;
SERIAL_ERRORLNPGM("Attempt to print outside of DELTA_PRINTABLE_RADIUS.");
goto LEAVE;
}
#endif
// TODO: Change this to use `position_is_reachable`
if (!WITHIN(circle_x, X_MIN_POS, X_MAX_POS) || !WITHIN(circle_y, Y_MIN_POS, Y_MAX_POS)) {
SERIAL_ERROR_START;
SERIAL_ERRORLNPGM("Attempt to print off the bed.");
goto LEAVE;
}
xi = location.x_index; // Just to shrink the next few lines and make them easier to understand
yi = location.y_index;
if (ubl.g26_debug_flag) {
SERIAL_ECHOPAIR(" Doing circle at: (xi=", xi);
SERIAL_ECHOPAIR(", yi=", yi);
SERIAL_CHAR(')');
SERIAL_EOL;
}
start_angle = 0.0; // assume it is going to be a full circle
end_angle = 360.0;
if (xi == 0) { // Check for bottom edge
start_angle = -90.0;
end_angle = 90.0;
if (yi == 0) // it is an edge, check for the two left corners
start_angle = 0.0;
else if (yi == GRID_MAX_POINTS_Y - 1)
end_angle = 0.0;
}
else if (xi == GRID_MAX_POINTS_X - 1) { // Check for top edge
start_angle = 90.0;
end_angle = 270.0;
if (yi == 0) // it is an edge, check for the two right corners
end_angle = 180.0;
else if (yi == GRID_MAX_POINTS_Y - 1)
start_angle = 180.0;
}
else if (yi == 0) {
start_angle = 0.0; // only do the top side of the cirlce
end_angle = 180.0;
}
else if (yi == GRID_MAX_POINTS_Y - 1) {
start_angle = 180.0; // only do the bottom side of the cirlce
end_angle = 360.0;
}
for (tmp = start_angle; tmp < end_angle - 0.1; tmp += 30.0) {
int tmp_div_30 = tmp / 30.0;
if (tmp_div_30 < 0) tmp_div_30 += 360 / 30;
if (tmp_div_30 > 11) tmp_div_30 -= 360 / 30;
float x = circle_x + cos_table[tmp_div_30], // for speed, these are now a lookup table entry
y = circle_y + sin_table[tmp_div_30],
xe = circle_x + cos_table[tmp_div_30 + 1],
ye = circle_y + sin_table[tmp_div_30 + 1];
#ifdef DELTA
if (HYPOT2(x, y) > sq(DELTA_PRINTABLE_RADIUS)) // Check to make sure this part of
continue; // the 'circle' is on the bed. If
#else // not, we need to skip
x = constrain(x, X_MIN_POS + 1, X_MAX_POS - 1); // This keeps us from bumping the endstops
y = constrain(y, Y_MIN_POS + 1, Y_MAX_POS - 1);
xe = constrain(xe, X_MIN_POS + 1, X_MAX_POS - 1);
ye = constrain(ye, Y_MIN_POS + 1, Y_MAX_POS - 1);
#endif
//if (ubl.g26_debug_flag) {
// char ccc, *cptr, seg_msg[50], seg_num[10];
// strcpy(seg_msg, " segment: ");
// strcpy(seg_num, " \n");
// cptr = (char*) "01234567890ABCDEF????????";
// ccc = cptr[tmp_div_30];
// seg_num[1] = ccc;
// strcat(seg_msg, seg_num);
// debug_current_and_destination(seg_msg);
//}
print_line_from_here_to_there(LOGICAL_X_POSITION(x), LOGICAL_Y_POSITION(y), layer_height, LOGICAL_X_POSITION(xe), LOGICAL_Y_POSITION(ye), layer_height);
}
//debug_current_and_destination(PSTR("Looking for lines to connect."));
look_for_lines_to_connect();
//debug_current_and_destination(PSTR("Done with line connect."));
}
//debug_current_and_destination(PSTR("Done with current circle."));
} while (location.x_index >= 0 && location.y_index >= 0);
LEAVE:
lcd_reset_alert_level();
lcd_setstatuspgm(PSTR("Leaving G26"));
retract_filament(destination);
destination[Z_AXIS] = Z_CLEARANCE_BETWEEN_PROBES;
//debug_current_and_destination(PSTR("ready to do Z-Raise."));
move_to(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], 0); // Raise the nozzle
//debug_current_and_destination(PSTR("done doing Z-Raise."));
destination[X_AXIS] = x_pos; // Move back to the starting position
destination[Y_AXIS] = y_pos;
//destination[Z_AXIS] = Z_CLEARANCE_BETWEEN_PROBES; // Keep the nozzle where it is
move_to(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], 0); // Move back to the starting position
//debug_current_and_destination(PSTR("done doing X/Y move."));
ubl.has_control_of_lcd_panel = false; // Give back control of the LCD Panel!
if (!keep_heaters_on) {
#if HAS_TEMP_BED
thermalManager.setTargetBed(0);
#endif
thermalManager.setTargetHotend(0, 0);
}
}
