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@ -559,25 +559,15 @@ static uint8_t target_extruder;
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float delta[ABC],
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float delta[ABC],
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endstop_adj[ABC] = { 0 };
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endstop_adj[ABC] = { 0 };
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// these are the default values, can be overriden with M665
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// These values are loaded or reset at boot time when setup() calls
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float delta_radius = DELTA_RADIUS,
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// Config_RetrieveSettings(), which calls recalc_delta_settings().
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delta_tower_angle_trim_1 = DELTA_TOWER_ANGLE_TRIM_1,
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float delta_radius,
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delta_tower_angle_trim_2 = DELTA_TOWER_ANGLE_TRIM_2,
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delta_tower_angle_trim[ABC],
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delta_tower_angle_trim_3 = DELTA_TOWER_ANGLE_TRIM_3,
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delta_tower[ABC][2],
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delta_tower1_x = -sin(RADIANS(60 - delta_tower_angle_trim_1)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_1), // front left tower
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delta_diagonal_rod,
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delta_tower1_y = -cos(RADIANS(60 - delta_tower_angle_trim_1)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_1),
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delta_diagonal_rod_trim[ABC],
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delta_tower2_x = sin(RADIANS(60 + delta_tower_angle_trim_2)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_2), // front right tower
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delta_diagonal_rod_2_tower[ABC],
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delta_tower2_y = -cos(RADIANS(60 + delta_tower_angle_trim_2)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_2),
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delta_segments_per_second,
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delta_tower3_x = -sin(RADIANS( delta_tower_angle_trim_3)), // back middle tower
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delta_tower3_y = cos(RADIANS( delta_tower_angle_trim_3)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_3),
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delta_diagonal_rod = DELTA_DIAGONAL_ROD,
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delta_diagonal_rod_trim_tower_1 = DELTA_DIAGONAL_ROD_TRIM_TOWER_1,
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delta_diagonal_rod_trim_tower_2 = DELTA_DIAGONAL_ROD_TRIM_TOWER_2,
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delta_diagonal_rod_trim_tower_3 = DELTA_DIAGONAL_ROD_TRIM_TOWER_3,
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delta_diagonal_rod_2_tower_1 = sq(delta_diagonal_rod + delta_diagonal_rod_trim_tower_1),
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delta_diagonal_rod_2_tower_2 = sq(delta_diagonal_rod + delta_diagonal_rod_trim_tower_2),
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delta_diagonal_rod_2_tower_3 = sq(delta_diagonal_rod + delta_diagonal_rod_trim_tower_3),
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delta_segments_per_second = DELTA_SEGMENTS_PER_SECOND,
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delta_clip_start_height = Z_MAX_POS;
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delta_clip_start_height = Z_MAX_POS;
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float delta_safe_distance_from_top();
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float delta_safe_distance_from_top();
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@ -6334,12 +6324,12 @@ inline void gcode_M205() {
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if (code_seen('L')) delta_diagonal_rod = code_value_linear_units();
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if (code_seen('L')) delta_diagonal_rod = code_value_linear_units();
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if (code_seen('R')) delta_radius = code_value_linear_units();
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if (code_seen('R')) delta_radius = code_value_linear_units();
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if (code_seen('S')) delta_segments_per_second = code_value_float();
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if (code_seen('S')) delta_segments_per_second = code_value_float();
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if (code_seen('A')) delta_diagonal_rod_trim_tower_1 = code_value_linear_units();
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if (code_seen('A')) delta_diagonal_rod_trim[A_AXIS] = code_value_linear_units();
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if (code_seen('B')) delta_diagonal_rod_trim_tower_2 = code_value_linear_units();
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if (code_seen('B')) delta_diagonal_rod_trim[B_AXIS] = code_value_linear_units();
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if (code_seen('C')) delta_diagonal_rod_trim_tower_3 = code_value_linear_units();
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if (code_seen('C')) delta_diagonal_rod_trim[C_AXIS] = code_value_linear_units();
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if (code_seen('I')) delta_tower_angle_trim_1 = code_value_linear_units();
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if (code_seen('I')) delta_tower_angle_trim[A_AXIS] = code_value_linear_units();
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if (code_seen('J')) delta_tower_angle_trim_2 = code_value_linear_units();
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if (code_seen('J')) delta_tower_angle_trim[B_AXIS] = code_value_linear_units();
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if (code_seen('K')) delta_tower_angle_trim_3 = code_value_linear_units();
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if (code_seen('K')) delta_tower_angle_trim[C_AXIS] = code_value_linear_units();
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recalc_delta_settings(delta_radius, delta_diagonal_rod);
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recalc_delta_settings(delta_radius, delta_diagonal_rod);
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}
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}
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/**
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/**
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@ -9143,15 +9133,15 @@ void ok_to_send() {
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* settings have been changed (e.g., by M665).
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* settings have been changed (e.g., by M665).
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*/
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*/
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void recalc_delta_settings(float radius, float diagonal_rod) {
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void recalc_delta_settings(float radius, float diagonal_rod) {
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delta_tower1_x = -sin(RADIANS(60 - delta_tower_angle_trim_1)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_1), // front left tower
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delta_tower[A_AXIS][X_AXIS] = -sin(RADIANS(60 - delta_tower_angle_trim[A_AXIS])) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_1), // front left tower
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delta_tower1_y = -cos(RADIANS(60 - delta_tower_angle_trim_1)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_1),
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delta_tower[A_AXIS][Y_AXIS] = -cos(RADIANS(60 - delta_tower_angle_trim[A_AXIS])) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_1),
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delta_tower2_x = sin(RADIANS(60 + delta_tower_angle_trim_2)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_2), // front right tower
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delta_tower[B_AXIS][X_AXIS] = sin(RADIANS(60 + delta_tower_angle_trim[B_AXIS])) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_2), // front right tower
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delta_tower2_y = -cos(RADIANS(60 + delta_tower_angle_trim_2)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_2),
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delta_tower[B_AXIS][Y_AXIS] = -cos(RADIANS(60 + delta_tower_angle_trim[B_AXIS])) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_2),
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delta_tower3_x = -sin(RADIANS( delta_tower_angle_trim_3)), // back middle tower
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delta_tower[C_AXIS][X_AXIS] = -sin(RADIANS( delta_tower_angle_trim[C_AXIS])) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_3), // back middle tower
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delta_tower3_y = cos(RADIANS( delta_tower_angle_trim_3)) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_3),
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delta_tower[C_AXIS][Y_AXIS] = cos(RADIANS( delta_tower_angle_trim[C_AXIS])) * (delta_radius + DELTA_RADIUS_TRIM_TOWER_3),
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delta_diagonal_rod_2_tower_1 = sq(diagonal_rod + delta_diagonal_rod_trim_tower_1);
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delta_diagonal_rod_2_tower[A_AXIS] = sq(diagonal_rod + delta_diagonal_rod_trim[A_AXIS]);
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delta_diagonal_rod_2_tower_2 = sq(diagonal_rod + delta_diagonal_rod_trim_tower_2);
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delta_diagonal_rod_2_tower[B_AXIS] = sq(diagonal_rod + delta_diagonal_rod_trim[B_AXIS]);
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delta_diagonal_rod_2_tower_3 = sq(diagonal_rod + delta_diagonal_rod_trim_tower_3);
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delta_diagonal_rod_2_tower[C_AXIS] = sq(diagonal_rod + delta_diagonal_rod_trim[C_AXIS]);
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}
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}
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#if ENABLED(DELTA_FAST_SQRT)
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#if ENABLED(DELTA_FAST_SQRT)
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@ -9202,16 +9192,16 @@ void ok_to_send() {
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// Macro to obtain the Z position of an individual tower
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// Macro to obtain the Z position of an individual tower
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#define DELTA_Z(T) raw[Z_AXIS] + _SQRT( \
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#define DELTA_Z(T) raw[Z_AXIS] + _SQRT( \
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delta_diagonal_rod_2_tower_##T - HYPOT2( \
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delta_diagonal_rod_2_tower[T] - HYPOT2( \
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delta_tower##T##_x - raw[X_AXIS], \
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delta_tower[T][X_AXIS] - raw[X_AXIS], \
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delta_tower##T##_y - raw[Y_AXIS] \
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delta_tower[T][Y_AXIS] - raw[Y_AXIS] \
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) \
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) \
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)
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)
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#define DELTA_RAW_IK() do { \
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#define DELTA_RAW_IK() do { \
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delta[A_AXIS] = DELTA_Z(1); \
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delta[A_AXIS] = DELTA_Z(A_AXIS); \
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delta[B_AXIS] = DELTA_Z(2); \
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delta[B_AXIS] = DELTA_Z(B_AXIS); \
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delta[C_AXIS] = DELTA_Z(3); \
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delta[C_AXIS] = DELTA_Z(C_AXIS); \
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} while(0)
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} while(0)
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#define DELTA_LOGICAL_IK() do { \
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#define DELTA_LOGICAL_IK() do { \
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@ -9281,7 +9271,7 @@ void ok_to_send() {
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*/
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*/
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void forward_kinematics_DELTA(float z1, float z2, float z3) {
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void forward_kinematics_DELTA(float z1, float z2, float z3) {
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// Create a vector in old coordinates along x axis of new coordinate
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// Create a vector in old coordinates along x axis of new coordinate
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float p12[3] = { delta_tower2_x - delta_tower1_x, delta_tower2_y - delta_tower1_y, z2 - z1 };
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float p12[3] = { delta_tower[B_AXIS][X_AXIS] - delta_tower[A_AXIS][X_AXIS], delta_tower[B_AXIS][Y_AXIS] - delta_tower[A_AXIS][Y_AXIS], z2 - z1 };
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// Get the Magnitude of vector.
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// Get the Magnitude of vector.
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float d = sqrt( sq(p12[0]) + sq(p12[1]) + sq(p12[2]) );
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float d = sqrt( sq(p12[0]) + sq(p12[1]) + sq(p12[2]) );
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@ -9290,7 +9280,7 @@ void ok_to_send() {
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float ex[3] = { p12[0] / d, p12[1] / d, p12[2] / d };
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float ex[3] = { p12[0] / d, p12[1] / d, p12[2] / d };
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// Get the vector from the origin of the new system to the third point.
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// Get the vector from the origin of the new system to the third point.
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float p13[3] = { delta_tower3_x - delta_tower1_x, delta_tower3_y - delta_tower1_y, z3 - z1 };
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float p13[3] = { delta_tower[C_AXIS][X_AXIS] - delta_tower[A_AXIS][X_AXIS], delta_tower[C_AXIS][Y_AXIS] - delta_tower[A_AXIS][Y_AXIS], z3 - z1 };
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// Use the dot product to find the component of this vector on the X axis.
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// Use the dot product to find the component of this vector on the X axis.
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float i = ex[0] * p13[0] + ex[1] * p13[1] + ex[2] * p13[2];
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float i = ex[0] * p13[0] + ex[1] * p13[1] + ex[2] * p13[2];
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@ -9318,15 +9308,15 @@ void ok_to_send() {
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// We now have the d, i and j values defined in Wikipedia.
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// We now have the d, i and j values defined in Wikipedia.
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// Plug them into the equations defined in Wikipedia for Xnew, Ynew and Znew
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// Plug them into the equations defined in Wikipedia for Xnew, Ynew and Znew
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float Xnew = (delta_diagonal_rod_2_tower_1 - delta_diagonal_rod_2_tower_2 + sq(d)) / (d * 2),
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float Xnew = (delta_diagonal_rod_2_tower[A_AXIS] - delta_diagonal_rod_2_tower[B_AXIS] + sq(d)) / (d * 2),
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Ynew = ((delta_diagonal_rod_2_tower_1 - delta_diagonal_rod_2_tower_3 + HYPOT2(i, j)) / 2 - i * Xnew) / j,
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Ynew = ((delta_diagonal_rod_2_tower[A_AXIS] - delta_diagonal_rod_2_tower[C_AXIS] + HYPOT2(i, j)) / 2 - i * Xnew) / j,
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Znew = sqrt(delta_diagonal_rod_2_tower_1 - HYPOT2(Xnew, Ynew));
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Znew = sqrt(delta_diagonal_rod_2_tower[A_AXIS] - HYPOT2(Xnew, Ynew));
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// Start from the origin of the old coordinates and add vectors in the
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// Start from the origin of the old coordinates and add vectors in the
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// old coords that represent the Xnew, Ynew and Znew to find the point
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// old coords that represent the Xnew, Ynew and Znew to find the point
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// in the old system.
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// in the old system.
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cartes[X_AXIS] = delta_tower1_x + ex[0] * Xnew + ey[0] * Ynew - ez[0] * Znew;
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cartes[X_AXIS] = delta_tower[A_AXIS][X_AXIS] + ex[0] * Xnew + ey[0] * Ynew - ez[0] * Znew;
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cartes[Y_AXIS] = delta_tower1_y + ex[1] * Xnew + ey[1] * Ynew - ez[1] * Znew;
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cartes[Y_AXIS] = delta_tower[A_AXIS][Y_AXIS] + ex[1] * Xnew + ey[1] * Ynew - ez[1] * Znew;
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cartes[Z_AXIS] = z1 + ex[2] * Xnew + ey[2] * Ynew - ez[2] * Znew;
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cartes[Z_AXIS] = z1 + ex[2] * Xnew + ey[2] * Ynew - ez[2] * Znew;
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}
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}
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