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Diffstat (limited to 'Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp')
| -rw-r--r-- | Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp | 1783 |
1 files changed, 1783 insertions, 0 deletions
diff --git a/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp b/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp new file mode 100644 index 0000000..41d2a36 --- /dev/null +++ b/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp @@ -0,0 +1,1783 @@ +/** + * Marlin 3D Printer Firmware + * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] + * + * Based on Sprinter and grbl. + * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + * + */ + +#include "../../../inc/MarlinConfig.h" + +#if ENABLED(AUTO_BED_LEVELING_UBL) + + #include "../bedlevel.h" + + #include "../../../MarlinCore.h" + #include "../../../HAL/shared/eeprom_api.h" + #include "../../../libs/hex_print.h" + #include "../../../module/settings.h" + #include "../../../lcd/marlinui.h" + #include "../../../module/stepper.h" + #include "../../../module/planner.h" + #include "../../../module/motion.h" + #include "../../../module/probe.h" + #include "../../../gcode/gcode.h" + #include "../../../libs/least_squares_fit.h" + + #if HAS_MULTI_HOTEND + #include "../../../module/tool_change.h" + #endif + + #define DEBUG_OUT ENABLED(DEBUG_LEVELING_FEATURE) + #include "../../../core/debug_out.h" + + #if ENABLED(EXTENSIBLE_UI) + #include "../../../lcd/extui/ui_api.h" + #endif + + #include <math.h> + + #define UBL_G29_P31 + + #if HAS_LCD_MENU + + bool unified_bed_leveling::lcd_map_control = false; + + void unified_bed_leveling::steppers_were_disabled() { + if (lcd_map_control) { + lcd_map_control = false; + ui.defer_status_screen(false); + } + } + + void ubl_map_screen(); + + #endif + + #define SIZE_OF_LITTLE_RAISE 1 + #define BIG_RAISE_NOT_NEEDED 0 + + int unified_bed_leveling::g29_verbose_level, + unified_bed_leveling::g29_phase_value, + unified_bed_leveling::g29_repetition_cnt, + unified_bed_leveling::g29_storage_slot = 0, + unified_bed_leveling::g29_map_type; + bool unified_bed_leveling::g29_c_flag; + float unified_bed_leveling::g29_card_thickness = 0, + unified_bed_leveling::g29_constant = 0; + xy_bool_t unified_bed_leveling::xy_seen; + xy_pos_t unified_bed_leveling::g29_pos; + + #if HAS_BED_PROBE + int unified_bed_leveling::g29_grid_size; + #endif + + /** + * G29: Unified Bed Leveling by Roxy + * + * Parameters understood by this leveling system: + * + * A Activate Activate the Unified Bed Leveling system. + * + * B # Business Use the 'Business Card' mode of the Manual Probe subsystem with P2. + * Note: A non-compressible Spark Gap feeler gauge is recommended over a business card. + * In this mode of G29 P2, a business or index card is used as a shim that the nozzle can + * grab onto as it is lowered. In principle, the nozzle-bed distance is the same when the + * same resistance is felt in the shim. You can omit the numerical value on first invocation + * of G29 P2 B to measure shim thickness. Subsequent use of 'B' will apply the previously- + * measured thickness by default. + * + * C Continue G29 P1 C continues the generation of a partially-constructed Mesh without invalidating + * previous measurements. + * + * C G29 P2 C tells the Manual Probe subsystem to not use the current nozzle + * location in its search for the closest unmeasured Mesh Point. Instead, attempt to + * start at one end of the uprobed points and Continue sequentially. + * + * G29 P3 C specifies the Constant for the fill. Otherwise, uses a "reasonable" value. + * + * C Current G29 Z C uses the Current location (instead of bed center or nearest edge). + * + * D Disable Disable the Unified Bed Leveling system. + * + * E Stow_probe Stow the probe after each sampled point. + * + * F # Fade Fade the amount of Mesh Based Compensation over a specified height. At the + * specified height, no correction is applied and natural printer kenimatics take over. If no + * number is specified for the command, 10mm is assumed to be reasonable. + * + * H # Height With P2, 'H' specifies the Height to raise the nozzle after each manual probe of the bed. + * If omitted, the nozzle will raise by Z_CLEARANCE_BETWEEN_PROBES. + * + * H # Offset With P4, 'H' specifies the Offset above the mesh height to place the nozzle. + * If omitted, Z_CLEARANCE_BETWEEN_PROBES will be used. + * + * I # Invalidate Invalidate the specified number of Mesh Points near the given 'X' 'Y'. If X or Y are omitted, + * the nozzle location is used. If no 'I' value is given, only the point nearest to the location + * is invalidated. Use 'T' to produce a map afterward. This command is useful to invalidate a + * portion of the Mesh so it can be adjusted using other UBL tools. When attempting to invalidate + * an isolated bad mesh point, the 'T' option shows the nozzle position in the Mesh with (#). You + * can move the nozzle around and use this feature to select the center of the area (or cell) to + * invalidate. + * + * J # Grid Perform a Grid Based Leveling of the current Mesh using a grid with n points on a side. + * Not specifying a grid size will invoke the 3-Point leveling function. + * + * L Load Load Mesh from the previously activated location in the EEPROM. + * + * L # Load Load Mesh from the specified location in the EEPROM. Set this location as activated + * for subsequent Load and Store operations. + * + * The P or Phase commands are used for the bulk of the work to setup a Mesh. In general, your Mesh will + * start off being initialized with a G29 P0 or a G29 P1. Further refinement of the Mesh happens with + * each additional Phase that processes it. + * + * P0 Phase 0 Zero Mesh Data and turn off the Mesh Compensation System. This reverts the + * 3D Printer to the same state it was in before the Unified Bed Leveling Compensation + * was turned on. Setting the entire Mesh to Zero is a special case that allows + * a subsequent G or T leveling operation for backward compatibility. + * + * P1 Phase 1 Invalidate entire Mesh and continue with automatic generation of the Mesh data using + * the Z-Probe. Usually the probe can't reach all areas that the nozzle can reach. For delta + * printers only the areas where the probe and nozzle can both reach will be automatically probed. + * + * Unreachable points will be handled in Phase 2 and Phase 3. + * + * Use 'C' to leave the previous mesh intact and automatically probe needed points. This allows you + * to invalidate parts of the Mesh but still use Automatic Probing. + * + * The 'X' and 'Y' parameters prioritize where to try and measure points. If omitted, the current + * probe position is used. + * + * Use 'T' (Topology) to generate a report of mesh generation. + * + * P1 will suspend Mesh generation if the controller button is held down. Note that you may need + * to press and hold the switch for several seconds if moves are underway. + * + * P2 Phase 2 Probe unreachable points. + * + * Use 'H' to set the height between Mesh points. If omitted, Z_CLEARANCE_BETWEEN_PROBES is used. + * Smaller values will be quicker. Move the nozzle down till it barely touches the bed. Make sure the + * nozzle is clean and unobstructed. Use caution and move slowly. This can damage your printer! + * (Uses SIZE_OF_LITTLE_RAISE mm if the nozzle is moving less than BIG_RAISE_NOT_NEEDED mm.) + * + * The 'H' value can be negative if the Mesh dips in a large area. Press and hold the + * controller button to terminate the current Phase 2 command. You can then re-issue "G29 P 2" + * with an 'H' parameter more suitable for the area you're manually probing. Note that the command + * tries to start in a corner of the bed where movement will be predictable. Override the distance + * calculation location with the X and Y parameters. You can print a Mesh Map (G29 T) to see where + * the mesh is invalidated and where the nozzle needs to move to complete the command. Use 'C' to + * indicate that the search should be based on the current position. + * + * The 'B' parameter for this command is described above. It places the manual probe subsystem into + * Business Card mode where the thickness of a business card is measured and then used to accurately + * set the nozzle height in all manual probing for the duration of the command. A Business card can + * be used, but you'll get better results with a flexible Shim that doesn't compress. This makes it + * easier to produce similar amounts of force and get more accurate measurements. Google if you're + * not sure how to use a shim. + * + * The 'T' (Map) parameter helps track Mesh building progress. + * + * NOTE: P2 requires an LCD controller! + * + * P3 Phase 3 Fill the unpopulated regions of the Mesh with a fixed value. There are two different paths to + * go down: + * + * - If a 'C' constant is specified, the closest invalid mesh points to the nozzle will be filled, + * and a repeat count can then also be specified with 'R'. + * + * - Leaving out 'C' invokes Smart Fill, which scans the mesh from the edges inward looking for + * invalid mesh points. Adjacent points are used to determine the bed slope. If the bed is sloped + * upward from the invalid point, it takes the value of the nearest point. If sloped downward, it's + * replaced by a value that puts all three points in a line. This version of G29 P3 is a quick, easy + * and (usually) safe way to populate unprobed mesh regions before continuing to G26 Mesh Validation + * Pattern. Note that this populates the mesh with unverified values. Pay attention and use caution. + * + * P4 Phase 4 Fine tune the Mesh. The Delta Mesh Compensation System assumes the existence of + * an LCD Panel. It is possible to fine tune the mesh without an LCD Panel using + * G42 and M421. See the UBL documentation for further details. + * + * Phase 4 is meant to be used with G26 Mesh Validation to fine tune the mesh by direct editing + * of Mesh Points. Raise and lower points to fine tune the mesh until it gives consistently reliable + * adhesion. + * + * P4 moves to the closest Mesh Point (and/or the given X Y), raises the nozzle above the mesh height + * by the given 'H' offset (or default 0), and waits while the controller is used to adjust the nozzle + * height. On click the displayed height is saved in the mesh. + * + * Start Phase 4 at a specific location with X and Y. Adjust a specific number of Mesh Points with + * the 'R' (Repeat) parameter. (If 'R' is left out, the whole matrix is assumed.) This command can be + * terminated early (e.g., after editing the area of interest) by pressing and holding the encoder button. + * + * The general form is G29 P4 [R points] [X position] [Y position] + * + * The H [offset] parameter is useful if a shim is used to fine-tune the mesh. For a 0.4mm shim the + * command would be G29 P4 H0.4. The nozzle is moved to the shim height, you adjust height to the shim, + * and on click the height minus the shim thickness will be saved in the mesh. + * + * !!Use with caution, as a very poor mesh could cause the nozzle to crash into the bed!! + * + * NOTE: P4 is not available unless you have LCD support enabled! + * + * P5 Phase 5 Find Mean Mesh Height and Standard Deviation. Typically, it is easier to use and + * work with the Mesh if it is Mean Adjusted. You can specify a C parameter to + * Correct the Mesh to a 0.00 Mean Height. Adding a C parameter will automatically + * execute a G29 P6 C <mean height>. + * + * P6 Phase 6 Shift Mesh height. The entire Mesh's height is adjusted by the height specified + * with the C parameter. Being able to adjust the height of a Mesh is useful tool. It + * can be used to compensate for poorly calibrated Z-Probes and other errors. Ideally, + * you should have the Mesh adjusted for a Mean Height of 0.00 and the Z-Probe measuring + * 0.000 at the Z Home location. + * + * Q Test Load specified Test Pattern to assist in checking correct operation of system. This + * command is not anticipated to be of much value to the typical user. It is intended + * for developers to help them verify correct operation of the Unified Bed Leveling System. + * + * R # Repeat Repeat this command the specified number of times. If no number is specified the + * command will be repeated GRID_MAX_POINTS_X * GRID_MAX_POINTS_Y times. + * + * S Store Store the current Mesh in the Activated area of the EEPROM. It will also store the + * current state of the Unified Bed Leveling system in the EEPROM. + * + * S # Store Store the current Mesh at the specified location in EEPROM. Activate this location + * for subsequent Load and Store operations. Valid storage slot numbers begin at 0 and + * extend to a limit related to the available EEPROM storage. + * + * S -1 Store Print the current Mesh as G-code that can be used to restore the mesh anytime. + * + * T Topology Display the Mesh Map Topology. + * 'T' can be used alone (e.g., G29 T) or in combination with most of the other commands. + * This option works with all Phase commands (e.g., G29 P4 R 5 T X 50 Y100 C -.1 O) + * This parameter can also specify a Map Type. T0 (the default) is user-readable. T1 + * is suitable to paste into a spreadsheet for a 3D graph of the mesh. + * + * U Unlevel Perform a probe of the outer perimeter to assist in physically leveling unlevel beds. + * Only used for G29 P1 T U. This speeds up the probing of the edge of the bed. Useful + * when the entire bed doesn't need to be probed because it will be adjusted. + * + * V # Verbosity Set the verbosity level (0-4) for extra details. (Default 0) + * + * X # X Location for this command + * + * Y # Y Location for this command + * + * With UBL_DEVEL_DEBUGGING: + * + * K # Kompare Kompare current Mesh with stored Mesh #, replacing current Mesh with the result. + * This command literally performs a diff between two Meshes. + * + * Q-1 Dump EEPROM Dump the UBL contents stored in EEPROM as HEX format. Useful for developers to help + * verify correct operation of the UBL. + * + * W What? Display valuable UBL data. + * + * + * Release Notes: + * You MUST do M502, M500 to initialize the storage. Failure to do this will cause all + * kinds of problems. Enabling EEPROM Storage is required. + * + * When you do a G28 and G29 P1 to automatically build your first mesh, you are going to notice that + * UBL probes points increasingly further from the starting location. (The starting location defaults + * to the center of the bed.) In contrast, ABL and MBL follow a zigzag pattern. The spiral pattern is + * especially better for Delta printers, since it populates the center of the mesh first, allowing for + * a quicker test print to verify settings. You don't need to populate the entire mesh to use it. + * After all, you don't want to spend a lot of time generating a mesh only to realize the resolution + * or probe offsets are incorrect. Mesh-generation gathers points starting closest to the nozzle unless + * an (X,Y) coordinate pair is given. + * + * Unified Bed Leveling uses a lot of EEPROM storage to hold its data, and it takes some effort to get + * the mesh just right. To prevent this valuable data from being destroyed as the EEPROM structure + * evolves, UBL stores all mesh data at the end of EEPROM. + * + * UBL is founded on Edward Patel's Mesh Bed Leveling code. A big 'Thanks!' to him and the creators of + * 3-Point and Grid Based leveling. Combining their contributions we now have the functionality and + * features of all three systems combined. + */ + + void unified_bed_leveling::G29() { + + bool probe_deployed = false; + if (g29_parameter_parsing()) return; // Abort on parameter error + + const int8_t p_val = parser.intval('P', -1); + const bool may_move = p_val == 1 || p_val == 2 || p_val == 4 || parser.seen('J'); + TERN_(HAS_MULTI_HOTEND, const uint8_t old_tool_index = active_extruder); + + // Check for commands that require the printer to be homed + if (may_move) { + planner.synchronize(); + // Send 'N' to force homing before G29 (internal only) + if (axes_should_home() || parser.seen('N')) gcode.home_all_axes(); + TERN_(HAS_MULTI_HOTEND, if (active_extruder) tool_change(0)); + } + + // Invalidate Mesh Points. This command is a little bit asymmetrical because + // it directly specifies the repetition count and does not use the 'R' parameter. + if (parser.seen('I')) { + uint8_t cnt = 0; + g29_repetition_cnt = parser.has_value() ? parser.value_int() : 1; + if (g29_repetition_cnt >= GRID_MAX_POINTS) { + set_all_mesh_points_to_value(NAN); + } + else { + while (g29_repetition_cnt--) { + if (cnt > 20) { cnt = 0; idle(); } + const mesh_index_pair closest = find_closest_mesh_point_of_type(REAL, g29_pos); + const xy_int8_t &cpos = closest.pos; + if (cpos.x < 0) { + // No more REAL mesh points to invalidate, so we ASSUME the user + // meant to invalidate the ENTIRE mesh, which cannot be done with + // find_closest_mesh_point loop which only returns REAL points. + set_all_mesh_points_to_value(NAN); + SERIAL_ECHOLNPGM("Entire Mesh invalidated.\n"); + break; // No more invalid Mesh Points to populate + } + z_values[cpos.x][cpos.y] = NAN; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(cpos, 0.0f)); + cnt++; + } + } + SERIAL_ECHOLNPGM("Locations invalidated.\n"); + } + + if (parser.seen('Q')) { + const int test_pattern = parser.has_value() ? parser.value_int() : -99; + if (!WITHIN(test_pattern, -1, 2)) { + SERIAL_ECHOLNPGM("Invalid test_pattern value. (-1 to 2)\n"); + return; + } + SERIAL_ECHOLNPGM("Loading test_pattern values.\n"); + switch (test_pattern) { + + #if ENABLED(UBL_DEVEL_DEBUGGING) + case -1: + g29_eeprom_dump(); + break; + #endif + + case 0: + GRID_LOOP(x, y) { // Create a bowl shape similar to a poorly-calibrated Delta + const float p1 = 0.5f * (GRID_MAX_POINTS_X) - x, + p2 = 0.5f * (GRID_MAX_POINTS_Y) - y; + z_values[x][y] += 2.0f * HYPOT(p1, p2); + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(x, y, z_values[x][y])); + } + break; + + case 1: + LOOP_L_N(x, GRID_MAX_POINTS_X) { // Create a diagonal line several Mesh cells thick that is raised + z_values[x][x] += 9.999f; + z_values[x][x + (x < (GRID_MAX_POINTS_Y) - 1) ? 1 : -1] += 9.999f; // We want the altered line several mesh points thick + #if ENABLED(EXTENSIBLE_UI) + ExtUI::onMeshUpdate(x, x, z_values[x][x]); + ExtUI::onMeshUpdate(x, (x + (x < (GRID_MAX_POINTS_Y) - 1) ? 1 : -1), z_values[x][x + (x < (GRID_MAX_POINTS_Y) - 1) ? 1 : -1]); + #endif + + } + break; + + case 2: + // Allow the user to specify the height because 10mm is a little extreme in some cases. + for (uint8_t x = (GRID_MAX_POINTS_X) / 3; x < 2 * (GRID_MAX_POINTS_X) / 3; x++) // Create a rectangular raised area in + for (uint8_t y = (GRID_MAX_POINTS_Y) / 3; y < 2 * (GRID_MAX_POINTS_Y) / 3; y++) { // the center of the bed + z_values[x][y] += parser.seen('C') ? g29_constant : 9.99f; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(x, y, z_values[x][y])); + } + break; + } + } + + #if HAS_BED_PROBE + + if (parser.seen('J')) { + save_ubl_active_state_and_disable(); + tilt_mesh_based_on_probed_grid(g29_grid_size == 0); // Zero size does 3-Point + restore_ubl_active_state_and_leave(); + #if ENABLED(UBL_G29_J_RECENTER) + do_blocking_move_to_xy(0.5f * ((MESH_MIN_X) + (MESH_MAX_X)), 0.5f * ((MESH_MIN_Y) + (MESH_MAX_Y))); + #endif + report_current_position(); + probe_deployed = true; + } + + #endif // HAS_BED_PROBE + + if (parser.seen('P')) { + if (WITHIN(g29_phase_value, 0, 1) && storage_slot == -1) { + storage_slot = 0; + SERIAL_ECHOLNPGM("Default storage slot 0 selected."); + } + + switch (g29_phase_value) { + case 0: + // + // Zero Mesh Data + // + reset(); + SERIAL_ECHOLNPGM("Mesh zeroed."); + break; + + #if HAS_BED_PROBE + + case 1: { + // + // Invalidate Entire Mesh and Automatically Probe Mesh in areas that can be reached by the probe + // + if (!parser.seen('C')) { + invalidate(); + SERIAL_ECHOLNPGM("Mesh invalidated. Probing mesh."); + } + if (g29_verbose_level > 1) { + SERIAL_ECHOPAIR("Probing around (", g29_pos.x); + SERIAL_CHAR(','); + SERIAL_DECIMAL(g29_pos.y); + SERIAL_ECHOLNPGM(").\n"); + } + const xy_pos_t near_probe_xy = g29_pos + probe.offset_xy; + probe_entire_mesh(near_probe_xy, parser.seen('T'), parser.seen('E'), parser.seen('U')); + + report_current_position(); + probe_deployed = true; + } break; + + #endif // HAS_BED_PROBE + + case 2: { + #if HAS_LCD_MENU + // + // Manually Probe Mesh in areas that can't be reached by the probe + // + SERIAL_ECHOLNPGM("Manually probing unreachable points."); + do_z_clearance(Z_CLEARANCE_BETWEEN_PROBES); + + if (parser.seen('C') && !xy_seen) { + + /** + * Use a good default location for the path. + * The flipped > and < operators in these comparisons is intentional. + * It should cause the probed points to follow a nice path on Cartesian printers. + * It may make sense to have Delta printers default to the center of the bed. + * Until that is decided, this can be forced with the X and Y parameters. + */ + g29_pos.set( + #if IS_KINEMATIC + X_HOME_POS, Y_HOME_POS + #else + probe.offset_xy.x > 0 ? X_BED_SIZE : 0, + probe.offset_xy.y < 0 ? Y_BED_SIZE : 0 + #endif + ); + } + + if (parser.seen('B')) { + g29_card_thickness = parser.has_value() ? parser.value_float() : measure_business_card_thickness(); + if (ABS(g29_card_thickness) > 1.5f) { + SERIAL_ECHOLNPGM("?Error in Business Card measurement."); + return; + } + probe_deployed = true; + } + + if (!position_is_reachable(g29_pos)) { + SERIAL_ECHOLNPGM("XY outside printable radius."); + return; + } + + const float height = parser.floatval('H', Z_CLEARANCE_BETWEEN_PROBES); + manually_probe_remaining_mesh(g29_pos, height, g29_card_thickness, parser.seen('T')); + + SERIAL_ECHOLNPGM("G29 P2 finished."); + + report_current_position(); + + #else + + SERIAL_ECHOLNPGM("?P2 is only available when an LCD is present."); + return; + + #endif + } break; + + case 3: { + /** + * Populate invalid mesh areas. Proceed with caution. + * Two choices are available: + * - Specify a constant with the 'C' parameter. + * - Allow 'G29 P3' to choose a 'reasonable' constant. + */ + + if (g29_c_flag) { + if (g29_repetition_cnt >= GRID_MAX_POINTS) { + set_all_mesh_points_to_value(g29_constant); + } + else { + while (g29_repetition_cnt--) { // this only populates reachable mesh points near + const mesh_index_pair closest = find_closest_mesh_point_of_type(INVALID, g29_pos); + const xy_int8_t &cpos = closest.pos; + if (cpos.x < 0) { + // No more REAL INVALID mesh points to populate, so we ASSUME + // user meant to populate ALL INVALID mesh points to value + GRID_LOOP(x, y) if (isnan(z_values[x][y])) z_values[x][y] = g29_constant; + break; // No more invalid Mesh Points to populate + } + else { + z_values[cpos.x][cpos.y] = g29_constant; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(cpos, g29_constant)); + } + } + } + } + else { + const float cvf = parser.value_float(); + switch ((int)TRUNC(cvf * 10.0f) - 30) { // 3.1 -> 1 + #if ENABLED(UBL_G29_P31) + case 1: { + + // P3.1 use least squares fit to fill missing mesh values + // P3.10 zero weighting for distance, all grid points equal, best fit tilted plane + // P3.11 10X weighting for nearest grid points versus farthest grid points + // P3.12 100X distance weighting + // P3.13 1000X distance weighting, approaches simple average of nearest points + + const float weight_power = (cvf - 3.10f) * 100.0f, // 3.12345 -> 2.345 + weight_factor = weight_power ? POW(10.0f, weight_power) : 0; + smart_fill_wlsf(weight_factor); + } + break; + #endif + case 0: // P3 or P3.0 + default: // and anything P3.x that's not P3.1 + smart_fill_mesh(); // Do a 'Smart' fill using nearby known values + break; + } + } + break; + } + + case 4: // Fine Tune (i.e., Edit) the Mesh + #if HAS_LCD_MENU + fine_tune_mesh(g29_pos, parser.seen('T')); + #else + SERIAL_ECHOLNPGM("?P4 is only available when an LCD is present."); + return; + #endif + break; + + case 5: adjust_mesh_to_mean(g29_c_flag, g29_constant); break; + + case 6: shift_mesh_height(); break; + } + } + + #if ENABLED(UBL_DEVEL_DEBUGGING) + + // + // Much of the 'What?' command can be eliminated. But until we are fully debugged, it is + // good to have the extra information. Soon... we prune this to just a few items + // + if (parser.seen('W')) g29_what_command(); + + // + // When we are fully debugged, this may go away. But there are some valid + // use cases for the users. So we can wait and see what to do with it. + // + + if (parser.seen('K')) // Kompare Current Mesh Data to Specified Stored Mesh + g29_compare_current_mesh_to_stored_mesh(); + + #endif // UBL_DEVEL_DEBUGGING + + + // + // Load a Mesh from the EEPROM + // + + if (parser.seen('L')) { // Load Current Mesh Data + g29_storage_slot = parser.has_value() ? parser.value_int() : storage_slot; + + int16_t a = settings.calc_num_meshes(); + + if (!a) { + SERIAL_ECHOLNPGM("?EEPROM storage not available."); + return; + } + + if (!WITHIN(g29_storage_slot, 0, a - 1)) { + SERIAL_ECHOLNPAIR("?Invalid storage slot.\n?Use 0 to ", a - 1); + return; + } + + settings.load_mesh(g29_storage_slot); + storage_slot = g29_storage_slot; + + SERIAL_ECHOLNPGM("Done."); + } + + // + // Store a Mesh in the EEPROM + // + + if (parser.seen('S')) { // Store (or Save) Current Mesh Data + g29_storage_slot = parser.has_value() ? parser.value_int() : storage_slot; + + if (g29_storage_slot == -1) // Special case, the user wants to 'Export' the mesh to the + return report_current_mesh(); // host program to be saved on the user's computer + + int16_t a = settings.calc_num_meshes(); + + if (!a) { + SERIAL_ECHOLNPGM("?EEPROM storage not available."); + goto LEAVE; + } + + if (!WITHIN(g29_storage_slot, 0, a - 1)) { + SERIAL_ECHOLNPAIR("?Invalid storage slot.\n?Use 0 to ", a - 1); + goto LEAVE; + } + + settings.store_mesh(g29_storage_slot); + storage_slot = g29_storage_slot; + + SERIAL_ECHOLNPGM("Done."); + } + + if (parser.seen('T')) + display_map(g29_map_type); + + LEAVE: + + #if HAS_LCD_MENU + ui.reset_alert_level(); + ui.quick_feedback(); + ui.reset_status(); + ui.release(); + #endif + + #ifdef Z_PROBE_END_SCRIPT + if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPAIR("Z Probe End Script: ", Z_PROBE_END_SCRIPT); + if (probe_deployed) { + planner.synchronize(); + gcode.process_subcommands_now_P(PSTR(Z_PROBE_END_SCRIPT)); + } + #else + UNUSED(probe_deployed); + #endif + + TERN_(HAS_MULTI_HOTEND, tool_change(old_tool_index)); + return; + } + + void unified_bed_leveling::adjust_mesh_to_mean(const bool cflag, const float value) { + float sum = 0; + int n = 0; + GRID_LOOP(x, y) + if (!isnan(z_values[x][y])) { + sum += z_values[x][y]; + n++; + } + + const float mean = sum / n; + + // + // Sum the squares of difference from mean + // + float sum_of_diff_squared = 0; + GRID_LOOP(x, y) + if (!isnan(z_values[x][y])) + sum_of_diff_squared += sq(z_values[x][y] - mean); + + SERIAL_ECHOLNPAIR("# of samples: ", n); + SERIAL_ECHOLNPAIR_F("Mean Mesh Height: ", mean, 6); + + const float sigma = SQRT(sum_of_diff_squared / (n + 1)); + SERIAL_ECHOLNPAIR_F("Standard Deviation: ", sigma, 6); + + if (cflag) + GRID_LOOP(x, y) + if (!isnan(z_values[x][y])) { + z_values[x][y] -= mean + value; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(x, y, z_values[x][y])); + } + } + + void unified_bed_leveling::shift_mesh_height() { + GRID_LOOP(x, y) + if (!isnan(z_values[x][y])) { + z_values[x][y] += g29_constant; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(x, y, z_values[x][y])); + } + } + + #if HAS_BED_PROBE + /** + * Probe all invalidated locations of the mesh that can be reached by the probe. + * This attempts to fill in locations closest to the nozzle's start location first. + */ + void unified_bed_leveling::probe_entire_mesh(const xy_pos_t &nearby, const bool do_ubl_mesh_map, const bool stow_probe, const bool do_furthest) { + probe.deploy(); // Deploy before ui.capture() to allow for PAUSE_BEFORE_DEPLOY_STOW + + TERN_(HAS_LCD_MENU, ui.capture()); + + save_ubl_active_state_and_disable(); // No bed level correction so only raw data is obtained + uint8_t count = GRID_MAX_POINTS; + + mesh_index_pair best; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(best.pos, ExtUI::MESH_START)); + do { + if (do_ubl_mesh_map) display_map(g29_map_type); + + const int point_num = (GRID_MAX_POINTS) - count + 1; + SERIAL_ECHOLNPAIR("Probing mesh point ", point_num, "/", int(GRID_MAX_POINTS), "."); + TERN_(HAS_DISPLAY, ui.status_printf_P(0, PSTR(S_FMT " %i/%i"), GET_TEXT(MSG_PROBING_MESH), point_num, int(GRID_MAX_POINTS))); + + #if HAS_LCD_MENU + if (ui.button_pressed()) { + ui.quick_feedback(false); // Preserve button state for click-and-hold + SERIAL_ECHOLNPGM("\nMesh only partially populated.\n"); + ui.wait_for_release(); + ui.quick_feedback(); + ui.release(); + probe.stow(); // Release UI before stow to allow for PAUSE_BEFORE_DEPLOY_STOW + return restore_ubl_active_state_and_leave(); + } + #endif + + best = do_furthest + ? find_furthest_invalid_mesh_point() + : find_closest_mesh_point_of_type(INVALID, nearby, true); + + if (best.pos.x >= 0) { // mesh point found and is reachable by probe + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(best.pos, ExtUI::PROBE_START)); + const float measured_z = probe.probe_at_point( + best.meshpos(), + stow_probe ? PROBE_PT_STOW : PROBE_PT_RAISE, g29_verbose_level + ); + z_values[best.pos.x][best.pos.y] = measured_z; + #if ENABLED(EXTENSIBLE_UI) + ExtUI::onMeshUpdate(best.pos, ExtUI::PROBE_FINISH); + ExtUI::onMeshUpdate(best.pos, measured_z); + #endif + } + SERIAL_FLUSH(); // Prevent host M105 buffer overrun. + + } while (best.pos.x >= 0 && --count); + + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(best.pos, ExtUI::MESH_FINISH)); + + // Release UI during stow to allow for PAUSE_BEFORE_DEPLOY_STOW + TERN_(HAS_LCD_MENU, ui.release()); + probe.stow(); + TERN_(HAS_LCD_MENU, ui.capture()); + + probe.move_z_after_probing(); + + restore_ubl_active_state_and_leave(); + + do_blocking_move_to_xy( + constrain(nearby.x - probe.offset_xy.x, MESH_MIN_X, MESH_MAX_X), + constrain(nearby.y - probe.offset_xy.y, MESH_MIN_Y, MESH_MAX_Y) + ); + } + + #endif // HAS_BED_PROBE + + #if HAS_LCD_MENU + + typedef void (*clickFunc_t)(); + + bool click_and_hold(const clickFunc_t func=nullptr) { + if (ui.button_pressed()) { + ui.quick_feedback(false); // Preserve button state for click-and-hold + const millis_t nxt = millis() + 1500UL; + while (ui.button_pressed()) { // Loop while the encoder is pressed. Uses hardware flag! + idle(); // idle, of course + if (ELAPSED(millis(), nxt)) { // After 1.5 seconds + ui.quick_feedback(); + if (func) (*func)(); + ui.wait_for_release(); + return true; + } + } + } + serial_delay(15); + return false; + } + + void unified_bed_leveling::move_z_with_encoder(const float &multiplier) { + ui.wait_for_release(); + while (!ui.button_pressed()) { + idle(); + gcode.reset_stepper_timeout(); // Keep steppers powered + if (encoder_diff) { + do_blocking_move_to_z(current_position.z + float(encoder_diff) * multiplier); + encoder_diff = 0; + } + } + } + + float unified_bed_leveling::measure_point_with_encoder() { + KEEPALIVE_STATE(PAUSED_FOR_USER); + move_z_with_encoder(0.01f); + return current_position.z; + } + + static void echo_and_take_a_measurement() { SERIAL_ECHOLNPGM(" and take a measurement."); } + + float unified_bed_leveling::measure_business_card_thickness() { + ui.capture(); + save_ubl_active_state_and_disable(); // Disable bed level correction for probing + + do_blocking_move_to(0.5f * (MESH_MAX_X - (MESH_MIN_X)), 0.5f * (MESH_MAX_Y - (MESH_MIN_Y)), MANUAL_PROBE_START_Z); + //, _MIN(planner.settings.max_feedrate_mm_s[X_AXIS], planner.settings.max_feedrate_mm_s[Y_AXIS]) * 0.5f); + planner.synchronize(); + + SERIAL_ECHOPGM("Place shim under nozzle"); + LCD_MESSAGEPGM(MSG_UBL_BC_INSERT); + ui.return_to_status(); + echo_and_take_a_measurement(); + + const float z1 = measure_point_with_encoder(); + do_blocking_move_to_z(current_position.z + SIZE_OF_LITTLE_RAISE); + planner.synchronize(); + + SERIAL_ECHOPGM("Remove shim"); + LCD_MESSAGEPGM(MSG_UBL_BC_REMOVE); + echo_and_take_a_measurement(); + + const float z2 = measure_point_with_encoder(); + do_blocking_move_to_z(current_position.z + Z_CLEARANCE_BETWEEN_PROBES); + + const float thickness = ABS(z1 - z2); + + if (g29_verbose_level > 1) { + SERIAL_ECHOPAIR_F("Business Card is ", thickness, 4); + SERIAL_ECHOLNPGM("mm thick."); + } + + restore_ubl_active_state_and_leave(); + + return thickness; + } + + void unified_bed_leveling::manually_probe_remaining_mesh(const xy_pos_t &pos, const float &z_clearance, const float &thick, const bool do_ubl_mesh_map) { + ui.capture(); + + save_ubl_active_state_and_disable(); // No bed level correction so only raw data is obtained + do_blocking_move_to_xy_z(current_position, z_clearance); + + ui.return_to_status(); + + mesh_index_pair location; + const xy_int8_t &lpos = location.pos; + do { + location = find_closest_mesh_point_of_type(INVALID, pos); + // It doesn't matter if the probe can't reach the NAN location. This is a manual probe. + if (!location.valid()) continue; + + const xyz_pos_t ppos = { + mesh_index_to_xpos(lpos.x), + mesh_index_to_ypos(lpos.y), + Z_CLEARANCE_BETWEEN_PROBES + }; + + if (!position_is_reachable(ppos)) break; // SHOULD NOT OCCUR (find_closest_mesh_point only returns reachable points) + + LCD_MESSAGEPGM(MSG_UBL_MOVING_TO_NEXT); + + do_blocking_move_to(ppos); + do_z_clearance(z_clearance); + + KEEPALIVE_STATE(PAUSED_FOR_USER); + ui.capture(); + + if (do_ubl_mesh_map) display_map(g29_map_type); // show user where we're probing + + serialprintPGM(parser.seen('B') ? GET_TEXT(MSG_UBL_BC_INSERT) : GET_TEXT(MSG_UBL_BC_INSERT2)); + + const float z_step = 0.01f; // existing behavior: 0.01mm per click, occasionally step + //const float z_step = planner.steps_to_mm[Z_AXIS]; // approx one step each click + + move_z_with_encoder(z_step); + + if (click_and_hold()) { + SERIAL_ECHOLNPGM("\nMesh only partially populated."); + do_z_clearance(Z_CLEARANCE_DEPLOY_PROBE); + return restore_ubl_active_state_and_leave(); + } + + z_values[lpos.x][lpos.y] = current_position.z - thick; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(location, z_values[lpos.x][lpos.y])); + + if (g29_verbose_level > 2) + SERIAL_ECHOLNPAIR_F("Mesh Point Measured at: ", z_values[lpos.x][lpos.y], 6); + SERIAL_FLUSH(); // Prevent host M105 buffer overrun. + } while (location.valid()); + + if (do_ubl_mesh_map) display_map(g29_map_type); // show user where we're probing + + restore_ubl_active_state_and_leave(); + do_blocking_move_to_xy_z(pos, Z_CLEARANCE_DEPLOY_PROBE); + } + + inline void set_message_with_feedback(PGM_P const msg_P) { + ui.set_status_P(msg_P); + ui.quick_feedback(); + } + + void abort_fine_tune() { + ui.return_to_status(); + do_z_clearance(Z_CLEARANCE_BETWEEN_PROBES); + set_message_with_feedback(GET_TEXT(MSG_EDITING_STOPPED)); + } + + void unified_bed_leveling::fine_tune_mesh(const xy_pos_t &pos, const bool do_ubl_mesh_map) { + if (!parser.seen('R')) // fine_tune_mesh() is special. If no repetition count flag is specified + g29_repetition_cnt = 1; // do exactly one mesh location. Otherwise use what the parser decided. + + #if ENABLED(UBL_MESH_EDIT_MOVES_Z) + const float h_offset = parser.seenval('H') ? parser.value_linear_units() : MANUAL_PROBE_START_Z; + if (!WITHIN(h_offset, 0, 10)) { + SERIAL_ECHOLNPGM("Offset out of bounds. (0 to 10mm)\n"); + return; + } + #endif + + mesh_index_pair location; + + if (!position_is_reachable(pos)) { + SERIAL_ECHOLNPGM("(X,Y) outside printable radius."); + return; + } + + save_ubl_active_state_and_disable(); + + LCD_MESSAGEPGM(MSG_UBL_FINE_TUNE_MESH); + ui.capture(); // Take over control of the LCD encoder + + do_blocking_move_to_xy_z(pos, Z_CLEARANCE_BETWEEN_PROBES); // Move to the given XY with probe clearance + + MeshFlags done_flags{0}; + const xy_int8_t &lpos = location.pos; + + #if IS_TFTGLCD_PANEL + lcd_mesh_edit_setup(0); // Change current screen before calling ui.ubl_plot + safe_delay(50); + #endif + + do { + location = find_closest_mesh_point_of_type(SET_IN_BITMAP, pos, false, &done_flags); + + if (lpos.x < 0) break; // Stop when there are no more reachable points + + done_flags.mark(lpos); // Mark this location as 'adjusted' so a new + // location is used on the next loop + const xyz_pos_t raw = { + mesh_index_to_xpos(lpos.x), + mesh_index_to_ypos(lpos.y), + Z_CLEARANCE_BETWEEN_PROBES + }; + + if (!position_is_reachable(raw)) break; // SHOULD NOT OCCUR (find_closest_mesh_point_of_type only returns reachable) + + do_blocking_move_to(raw); // Move the nozzle to the edit point with probe clearance + + TERN_(UBL_MESH_EDIT_MOVES_Z, do_blocking_move_to_z(h_offset)); // Move Z to the given 'H' offset before editing + + KEEPALIVE_STATE(PAUSED_FOR_USER); + + if (do_ubl_mesh_map) display_map(g29_map_type); // Display the current point + + #if IS_TFTGLCD_PANEL + ui.ubl_plot(lpos.x, lpos.y); // update plot screen + #endif + + ui.refresh(); + + float new_z = z_values[lpos.x][lpos.y]; + if (isnan(new_z)) new_z = 0; // Invalid points begin at 0 + new_z = FLOOR(new_z * 1000) * 0.001f; // Chop off digits after the 1000ths place + + lcd_mesh_edit_setup(new_z); + + SET_SOFT_ENDSTOP_LOOSE(true); + + do { + idle(); + new_z = lcd_mesh_edit(); + TERN_(UBL_MESH_EDIT_MOVES_Z, do_blocking_move_to_z(h_offset + new_z)); // Move the nozzle as the point is edited + SERIAL_FLUSH(); // Prevent host M105 buffer overrun. + } while (!ui.button_pressed()); + + SET_SOFT_ENDSTOP_LOOSE(false); + + if (!lcd_map_control) ui.return_to_status(); // Just editing a single point? Return to status + + if (click_and_hold(abort_fine_tune)) break; // Button held down? Abort editing + + z_values[lpos.x][lpos.y] = new_z; // Save the updated Z value + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(location, new_z)); + + serial_delay(20); // No switch noise + ui.refresh(); + + } while (lpos.x >= 0 && --g29_repetition_cnt > 0); + + if (do_ubl_mesh_map) display_map(g29_map_type); + restore_ubl_active_state_and_leave(); + + do_blocking_move_to_xy_z(pos, Z_CLEARANCE_BETWEEN_PROBES); + + LCD_MESSAGEPGM(MSG_UBL_DONE_EDITING_MESH); + SERIAL_ECHOLNPGM("Done Editing Mesh"); + + if (lcd_map_control) + ui.goto_screen(ubl_map_screen); + else + ui.return_to_status(); + } + + #endif // HAS_LCD_MENU + + bool unified_bed_leveling::g29_parameter_parsing() { + bool err_flag = false; + + TERN_(HAS_LCD_MENU, set_message_with_feedback(GET_TEXT(MSG_UBL_DOING_G29))); + + g29_constant = 0; + g29_repetition_cnt = 0; + + if (parser.seen('R')) { + g29_repetition_cnt = parser.has_value() ? parser.value_int() : GRID_MAX_POINTS; + NOMORE(g29_repetition_cnt, GRID_MAX_POINTS); + if (g29_repetition_cnt < 1) { + SERIAL_ECHOLNPGM("?(R)epetition count invalid (1+).\n"); + return UBL_ERR; + } + } + + g29_verbose_level = parser.seen('V') ? parser.value_int() : 0; + if (!WITHIN(g29_verbose_level, 0, 4)) { + SERIAL_ECHOLNPGM("?(V)erbose level implausible (0-4).\n"); + err_flag = true; + } + + if (parser.seen('P')) { + const int pv = parser.value_int(); + #if !HAS_BED_PROBE + if (pv == 1) { + SERIAL_ECHOLNPGM("G29 P1 requires a probe.\n"); + err_flag = true; + } + else + #endif + { + g29_phase_value = pv; + if (!WITHIN(g29_phase_value, 0, 6)) { + SERIAL_ECHOLNPGM("?(P)hase value invalid (0-6).\n"); + err_flag = true; + } + } + } + + if (parser.seen('J')) { + #if HAS_BED_PROBE + g29_grid_size = parser.has_value() ? parser.value_int() : 0; + if (g29_grid_size && !WITHIN(g29_grid_size, 2, 9)) { + SERIAL_ECHOLNPGM("?Invalid grid size (J) specified (2-9).\n"); + err_flag = true; + } + #else + SERIAL_ECHOLNPGM("G29 J action requires a probe.\n"); + err_flag = true; + #endif + } + + xy_seen.x = parser.seenval('X'); + float sx = xy_seen.x ? parser.value_float() : current_position.x; + xy_seen.y = parser.seenval('Y'); + float sy = xy_seen.y ? parser.value_float() : current_position.y; + + if (xy_seen.x != xy_seen.y) { + SERIAL_ECHOLNPGM("Both X & Y locations must be specified.\n"); + err_flag = true; + } + + // If X or Y are not valid, use center of the bed values + if (!WITHIN(sx, X_MIN_BED, X_MAX_BED)) sx = X_CENTER; + if (!WITHIN(sy, Y_MIN_BED, Y_MAX_BED)) sy = Y_CENTER; + + if (err_flag) return UBL_ERR; + + g29_pos.set(sx, sy); + + /** + * Activate or deactivate UBL + * Note: UBL's G29 restores the state set here when done. + * Leveling is being enabled here with old data, possibly + * none. Error handling should disable for safety... + */ + if (parser.seen('A')) { + if (parser.seen('D')) { + SERIAL_ECHOLNPGM("?Can't activate and deactivate at the same time.\n"); + return UBL_ERR; + } + set_bed_leveling_enabled(true); + report_state(); + } + else if (parser.seen('D')) { + set_bed_leveling_enabled(false); + report_state(); + } + + // Set global 'C' flag and its value + if ((g29_c_flag = parser.seen('C'))) + g29_constant = parser.value_float(); + + #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT) + if (parser.seenval('F')) { + const float fh = parser.value_float(); + if (!WITHIN(fh, 0, 100)) { + SERIAL_ECHOLNPGM("?(F)ade height for Bed Level Correction not plausible.\n"); + return UBL_ERR; + } + set_z_fade_height(fh); + } + #endif + + g29_map_type = parser.intval('T'); + if (!WITHIN(g29_map_type, 0, 2)) { + SERIAL_ECHOLNPGM("Invalid map type.\n"); + return UBL_ERR; + } + return UBL_OK; + } + + static uint8_t ubl_state_at_invocation = 0; + + #if ENABLED(UBL_DEVEL_DEBUGGING) + static uint8_t ubl_state_recursion_chk = 0; + #endif + + void unified_bed_leveling::save_ubl_active_state_and_disable() { + #if ENABLED(UBL_DEVEL_DEBUGGING) + ubl_state_recursion_chk++; + if (ubl_state_recursion_chk != 1) { + SERIAL_ECHOLNPGM("save_ubl_active_state_and_disabled() called multiple times in a row."); + TERN_(HAS_LCD_MENU, set_message_with_feedback(GET_TEXT(MSG_UBL_SAVE_ERROR))); + return; + } + #endif + ubl_state_at_invocation = planner.leveling_active; + set_bed_leveling_enabled(false); + } + + void unified_bed_leveling::restore_ubl_active_state_and_leave() { + TERN_(HAS_LCD_MENU, ui.release()); + #if ENABLED(UBL_DEVEL_DEBUGGING) + if (--ubl_state_recursion_chk) { + SERIAL_ECHOLNPGM("restore_ubl_active_state_and_leave() called too many times."); + TERN_(HAS_LCD_MENU, set_message_with_feedback(GET_TEXT(MSG_UBL_RESTORE_ERROR))); + return; + } + #endif + set_bed_leveling_enabled(ubl_state_at_invocation); + } + + mesh_index_pair unified_bed_leveling::find_furthest_invalid_mesh_point() { + + bool found_a_NAN = false, found_a_real = false; + + mesh_index_pair farthest { -1, -1, -99999.99 }; + + GRID_LOOP(i, j) { + if (!isnan(z_values[i][j])) continue; // Skip valid mesh points + + // Skip unreachable points + if (!probe.can_reach(mesh_index_to_xpos(i), mesh_index_to_ypos(j))) + continue; + + found_a_NAN = true; + + xy_int8_t nearby { -1, -1 }; + float d1, d2 = 99999.9f; + GRID_LOOP(k, l) { + if (isnan(z_values[k][l])) continue; + + found_a_real = true; + + // Add in a random weighting factor that scrambles the probing of the + // last half of the mesh (when every unprobed mesh point is one index + // from a probed location). + + d1 = HYPOT(i - k, j - l) + (1.0f / ((millis() % 47) + 13)); + + if (d1 < d2) { // Invalid mesh point (i,j) is closer to the defined point (k,l) + d2 = d1; + nearby.set(i, j); + } + } + + // + // At this point d2 should have the near defined mesh point to invalid mesh point (i,j) + // + + if (found_a_real && nearby.x >= 0 && d2 > farthest.distance) { + farthest.pos = nearby; // Found an invalid location farther from the defined mesh point + farthest.distance = d2; + } + } // GRID_LOOP + + if (!found_a_real && found_a_NAN) { // if the mesh is totally unpopulated, start the probing + farthest.pos.set((GRID_MAX_POINTS_X) / 2, (GRID_MAX_POINTS_Y) / 2); + farthest.distance = 1; + } + return farthest; + } + + mesh_index_pair unified_bed_leveling::find_closest_mesh_point_of_type(const MeshPointType type, const xy_pos_t &pos, const bool probe_relative/*=false*/, MeshFlags *done_flags/*=nullptr*/) { + mesh_index_pair closest; + closest.invalidate(); + closest.distance = -99999.9f; + + // Get the reference position, either nozzle or probe + const xy_pos_t ref = probe_relative ? pos + probe.offset_xy : pos; + + float best_so_far = 99999.99f; + + GRID_LOOP(i, j) { + if ( (type == (isnan(z_values[i][j]) ? INVALID : REAL)) + || (type == SET_IN_BITMAP && !done_flags->marked(i, j)) + ) { + // Found a Mesh Point of the specified type! + const xy_pos_t mpos = { mesh_index_to_xpos(i), mesh_index_to_ypos(j) }; + + // If using the probe as the reference there are some unreachable locations. + // Also for round beds, there are grid points outside the bed the nozzle can't reach. + // Prune them from the list and ignore them till the next Phase (manual nozzle probing). + + if (!(probe_relative ? probe.can_reach(mpos) : position_is_reachable(mpos))) + continue; + + // Reachable. Check if it's the best_so_far location to the nozzle. + + const xy_pos_t diff = current_position - mpos; + const float distance = (ref - mpos).magnitude() + diff.magnitude() * 0.1f; + + // factor in the distance from the current location for the normal case + // so the nozzle isn't running all over the bed. + if (distance < best_so_far) { + best_so_far = distance; // Found a closer location with the desired value type. + closest.pos.set(i, j); + closest.distance = best_so_far; + } + } + } // GRID_LOOP + + return closest; + } + + /** + * 'Smart Fill': Scan from the outward edges of the mesh towards the center. + * If an invalid location is found, use the next two points (if valid) to + * calculate a 'reasonable' value for the unprobed mesh point. + */ + + bool unified_bed_leveling::smart_fill_one(const uint8_t x, const uint8_t y, const int8_t xdir, const int8_t ydir) { + const float v = z_values[x][y]; + if (isnan(v)) { // A NAN... + const int8_t dx = x + xdir, dy = y + ydir; + const float v1 = z_values[dx][dy]; + if (!isnan(v1)) { // ...next to a pair of real values? + const float v2 = z_values[dx + xdir][dy + ydir]; + if (!isnan(v2)) { + z_values[x][y] = v1 < v2 ? v1 : v1 + v1 - v2; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(x, y, z_values[x][y])); + return true; + } + } + } + return false; + } + + typedef struct { uint8_t sx, ex, sy, ey; bool yfirst; } smart_fill_info; + + void unified_bed_leveling::smart_fill_mesh() { + static const smart_fill_info + info0 PROGMEM = { 0, GRID_MAX_POINTS_X, 0, GRID_MAX_POINTS_Y - 2, false }, // Bottom of the mesh looking up + info1 PROGMEM = { 0, GRID_MAX_POINTS_X, GRID_MAX_POINTS_Y - 1, 0, false }, // Top of the mesh looking down + info2 PROGMEM = { 0, GRID_MAX_POINTS_X - 2, 0, GRID_MAX_POINTS_Y, true }, // Left side of the mesh looking right + info3 PROGMEM = { GRID_MAX_POINTS_X - 1, 0, 0, GRID_MAX_POINTS_Y, true }; // Right side of the mesh looking left + static const smart_fill_info * const info[] PROGMEM = { &info0, &info1, &info2, &info3 }; + + LOOP_L_N(i, COUNT(info)) { + const smart_fill_info *f = (smart_fill_info*)pgm_read_ptr(&info[i]); + const int8_t sx = pgm_read_byte(&f->sx), sy = pgm_read_byte(&f->sy), + ex = pgm_read_byte(&f->ex), ey = pgm_read_byte(&f->ey); + if (pgm_read_byte(&f->yfirst)) { + const int8_t dir = ex > sx ? 1 : -1; + for (uint8_t y = sy; y != ey; ++y) + for (uint8_t x = sx; x != ex; x += dir) + if (smart_fill_one(x, y, dir, 0)) break; + } + else { + const int8_t dir = ey > sy ? 1 : -1; + for (uint8_t x = sx; x != ex; ++x) + for (uint8_t y = sy; y != ey; y += dir) + if (smart_fill_one(x, y, 0, dir)) break; + } + } + } + + #if HAS_BED_PROBE + + //#define VALIDATE_MESH_TILT + + #include "../../../libs/vector_3.h" + + void unified_bed_leveling::tilt_mesh_based_on_probed_grid(const bool do_3_pt_leveling) { + const float x_min = probe.min_x(), x_max = probe.max_x(), + y_min = probe.min_y(), y_max = probe.max_y(), + dx = (x_max - x_min) / (g29_grid_size - 1), + dy = (y_max - y_min) / (g29_grid_size - 1); + + xy_float_t points[3]; + probe.get_three_points(points); + + float measured_z; + bool abort_flag = false; + + #ifdef VALIDATE_MESH_TILT + float z1, z2, z3; // Needed for algorithm validation below + #endif + + struct linear_fit_data lsf_results; + incremental_LSF_reset(&lsf_results); + + if (do_3_pt_leveling) { + SERIAL_ECHOLNPGM("Tilting mesh (1/3)"); + TERN_(HAS_DISPLAY, ui.status_printf_P(0, PSTR(S_FMT " 1/3"), GET_TEXT(MSG_LCD_TILTING_MESH))); + + measured_z = probe.probe_at_point(points[0], PROBE_PT_RAISE, g29_verbose_level); + if (isnan(measured_z)) + abort_flag = true; + else { + measured_z -= get_z_correction(points[0]); + #ifdef VALIDATE_MESH_TILT + z1 = measured_z; + #endif + if (g29_verbose_level > 3) { + serial_spaces(16); + SERIAL_ECHOLNPAIR("Corrected_Z=", measured_z); + } + incremental_LSF(&lsf_results, points[0], measured_z); + } + + if (!abort_flag) { + SERIAL_ECHOLNPGM("Tilting mesh (2/3)"); + TERN_(HAS_DISPLAY, ui.status_printf_P(0, PSTR(S_FMT " 2/3"), GET_TEXT(MSG_LCD_TILTING_MESH))); + + measured_z = probe.probe_at_point(points[1], PROBE_PT_RAISE, g29_verbose_level); + #ifdef VALIDATE_MESH_TILT + z2 = measured_z; + #endif + if (isnan(measured_z)) + abort_flag = true; + else { + measured_z -= get_z_correction(points[1]); + if (g29_verbose_level > 3) { + serial_spaces(16); + SERIAL_ECHOLNPAIR("Corrected_Z=", measured_z); + } + incremental_LSF(&lsf_results, points[1], measured_z); + } + } + + if (!abort_flag) { + SERIAL_ECHOLNPGM("Tilting mesh (3/3)"); + TERN_(HAS_DISPLAY, ui.status_printf_P(0, PSTR(S_FMT " 3/3"), GET_TEXT(MSG_LCD_TILTING_MESH))); + + measured_z = probe.probe_at_point(points[2], PROBE_PT_STOW, g29_verbose_level); + #ifdef VALIDATE_MESH_TILT + z3 = measured_z; + #endif + if (isnan(measured_z)) + abort_flag = true; + else { + measured_z -= get_z_correction(points[2]); + if (g29_verbose_level > 3) { + serial_spaces(16); + SERIAL_ECHOLNPAIR("Corrected_Z=", measured_z); + } + incremental_LSF(&lsf_results, points[2], measured_z); + } + } + + probe.stow(); + probe.move_z_after_probing(); + + if (abort_flag) { + SERIAL_ECHOLNPGM("?Error probing point. Aborting operation."); + return; + } + } + else { // !do_3_pt_leveling + + bool zig_zag = false; + + const uint16_t total_points = sq(g29_grid_size); + uint16_t point_num = 1; + + xy_pos_t rpos; + LOOP_L_N(ix, g29_grid_size) { + rpos.x = x_min + ix * dx; + LOOP_L_N(iy, g29_grid_size) { + rpos.y = y_min + dy * (zig_zag ? g29_grid_size - 1 - iy : iy); + + if (!abort_flag) { + SERIAL_ECHOLNPAIR("Tilting mesh point ", point_num, "/", total_points, "\n"); + TERN_(HAS_DISPLAY, ui.status_printf_P(0, PSTR(S_FMT " %i/%i"), GET_TEXT(MSG_LCD_TILTING_MESH), point_num, total_points)); + + measured_z = probe.probe_at_point(rpos, parser.seen('E') ? PROBE_PT_STOW : PROBE_PT_RAISE, g29_verbose_level); // TODO: Needs error handling + + abort_flag = isnan(measured_z); + + #if ENABLED(DEBUG_LEVELING_FEATURE) + if (DEBUGGING(LEVELING)) { + const xy_pos_t lpos = rpos.asLogical(); + DEBUG_CHAR('('); + DEBUG_ECHO_F(rpos.x, 7); + DEBUG_CHAR(','); + DEBUG_ECHO_F(rpos.y, 7); + DEBUG_ECHOPAIR_F(") logical: (", lpos.x, 7); + DEBUG_CHAR(','); + DEBUG_ECHO_F(lpos.y, 7); + DEBUG_ECHOPAIR_F(") measured: ", measured_z, 7); + DEBUG_ECHOPAIR_F(" correction: ", get_z_correction(rpos), 7); + } + #endif + + measured_z -= get_z_correction(rpos) /* + probe.offset.z */ ; + + if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPAIR_F(" final >>>---> ", measured_z, 7); + + if (g29_verbose_level > 3) { + serial_spaces(16); + SERIAL_ECHOLNPAIR("Corrected_Z=", measured_z); + } + incremental_LSF(&lsf_results, rpos, measured_z); + } + + point_num++; + } + + zig_zag ^= true; + } + } + probe.stow(); + probe.move_z_after_probing(); + + if (abort_flag || finish_incremental_LSF(&lsf_results)) { + SERIAL_ECHOPGM("Could not complete LSF!"); + return; + } + + vector_3 normal = vector_3(lsf_results.A, lsf_results.B, 1).get_normal(); + + if (g29_verbose_level > 2) { + SERIAL_ECHOPAIR_F("bed plane normal = [", normal.x, 7); + SERIAL_CHAR(','); + SERIAL_ECHO_F(normal.y, 7); + SERIAL_CHAR(','); + SERIAL_ECHO_F(normal.z, 7); + SERIAL_ECHOLNPGM("]"); + } + + matrix_3x3 rotation = matrix_3x3::create_look_at(vector_3(lsf_results.A, lsf_results.B, 1)); + + GRID_LOOP(i, j) { + float mx = mesh_index_to_xpos(i), + my = mesh_index_to_ypos(j), + mz = z_values[i][j]; + + if (DEBUGGING(LEVELING)) { + DEBUG_ECHOPAIR_F("before rotation = [", mx, 7); + DEBUG_CHAR(','); + DEBUG_ECHO_F(my, 7); + DEBUG_CHAR(','); + DEBUG_ECHO_F(mz, 7); + DEBUG_ECHOPGM("] ---> "); + DEBUG_DELAY(20); + } + + apply_rotation_xyz(rotation, mx, my, mz); + + if (DEBUGGING(LEVELING)) { + DEBUG_ECHOPAIR_F("after rotation = [", mx, 7); + DEBUG_CHAR(','); + DEBUG_ECHO_F(my, 7); + DEBUG_CHAR(','); + DEBUG_ECHO_F(mz, 7); + DEBUG_ECHOLNPGM("]"); + DEBUG_DELAY(20); + } + + z_values[i][j] = mz - lsf_results.D; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(i, j, z_values[i][j])); + } + + if (DEBUGGING(LEVELING)) { + rotation.debug(PSTR("rotation matrix:\n")); + DEBUG_ECHOPAIR_F("LSF Results A=", lsf_results.A, 7); + DEBUG_ECHOPAIR_F(" B=", lsf_results.B, 7); + DEBUG_ECHOLNPAIR_F(" D=", lsf_results.D, 7); + DEBUG_DELAY(55); + + DEBUG_ECHOPAIR_F("bed plane normal = [", normal.x, 7); + DEBUG_CHAR(','); + DEBUG_ECHO_F(normal.y, 7); + DEBUG_CHAR(','); + DEBUG_ECHO_F(normal.z, 7); + DEBUG_ECHOLNPGM("]"); + DEBUG_EOL(); + + /** + * Use the code below to check the validity of the mesh tilting algorithm. + * 3-Point Mesh Tilt uses the same algorithm as grid-based tilting, but only + * three points are used in the calculation. This guarantees that each probed point + * has an exact match when get_z_correction() for that location is calculated. + * The Z error between the probed point locations and the get_z_correction() + * numbers for those locations should be 0. + */ + #ifdef VALIDATE_MESH_TILT + auto d_from = []{ DEBUG_ECHOPGM("D from "); }; + auto normed = [&](const xy_pos_t &pos, const float &zadd) { + return normal.x * pos.x + normal.y * pos.y + zadd; + }; + auto debug_pt = [](PGM_P const pre, const xy_pos_t &pos, const float &zadd) { + d_from(); serialprintPGM(pre); + DEBUG_ECHO_F(normed(pos, zadd), 6); + DEBUG_ECHOLNPAIR_F(" Z error = ", zadd - get_z_correction(pos), 6); + }; + debug_pt(PSTR("1st point: "), probe_pt[0], normal.z * z1); + debug_pt(PSTR("2nd point: "), probe_pt[1], normal.z * z2); + debug_pt(PSTR("3rd point: "), probe_pt[2], normal.z * z3); + d_from(); DEBUG_ECHOPGM("safe home with Z="); + DEBUG_ECHOLNPAIR_F("0 : ", normed(safe_homing_xy, 0), 6); + d_from(); DEBUG_ECHOPGM("safe home with Z="); + DEBUG_ECHOLNPAIR_F("mesh value ", normed(safe_homing_xy, get_z_correction(safe_homing_xy)), 6); + DEBUG_ECHOPAIR(" Z error = (", Z_SAFE_HOMING_X_POINT, ",", Z_SAFE_HOMING_Y_POINT); + DEBUG_ECHOLNPAIR_F(") = ", get_z_correction(safe_homing_xy), 6); + #endif + } // DEBUGGING(LEVELING) + + } + + #endif // HAS_BED_PROBE + + #if ENABLED(UBL_G29_P31) + void unified_bed_leveling::smart_fill_wlsf(const float &weight_factor) { + + // For each undefined mesh point, compute a distance-weighted least squares fit + // from all the originally populated mesh points, weighted toward the point + // being extrapolated so that nearby points will have greater influence on + // the point being extrapolated. Then extrapolate the mesh point from WLSF. + + static_assert((GRID_MAX_POINTS_Y) <= 16, "GRID_MAX_POINTS_Y too big"); + uint16_t bitmap[GRID_MAX_POINTS_X] = { 0 }; + struct linear_fit_data lsf_results; + + SERIAL_ECHOPGM("Extrapolating mesh..."); + + const float weight_scaled = weight_factor * _MAX(MESH_X_DIST, MESH_Y_DIST); + + GRID_LOOP(jx, jy) if (!isnan(z_values[jx][jy])) SBI(bitmap[jx], jy); + + xy_pos_t ppos; + LOOP_L_N(ix, GRID_MAX_POINTS_X) { + ppos.x = mesh_index_to_xpos(ix); + LOOP_L_N(iy, GRID_MAX_POINTS_Y) { + ppos.y = mesh_index_to_ypos(iy); + if (isnan(z_values[ix][iy])) { + // undefined mesh point at (ppos.x,ppos.y), compute weighted LSF from original valid mesh points. + incremental_LSF_reset(&lsf_results); + xy_pos_t rpos; + LOOP_L_N(jx, GRID_MAX_POINTS_X) { + rpos.x = mesh_index_to_xpos(jx); + LOOP_L_N(jy, GRID_MAX_POINTS_Y) { + if (TEST(bitmap[jx], jy)) { + rpos.y = mesh_index_to_ypos(jy); + const float rz = z_values[jx][jy], + w = 1.0f + weight_scaled / (rpos - ppos).magnitude(); + incremental_WLSF(&lsf_results, rpos, rz, w); + } + } + } + if (finish_incremental_LSF(&lsf_results)) { + SERIAL_ECHOLNPGM("Insufficient data"); + return; + } + const float ez = -lsf_results.D - lsf_results.A * ppos.x - lsf_results.B * ppos.y; + z_values[ix][iy] = ez; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(ix, iy, z_values[ix][iy])); + idle(); // housekeeping + } + } + } + + SERIAL_ECHOLNPGM("done"); + } + #endif // UBL_G29_P31 + + #if ENABLED(UBL_DEVEL_DEBUGGING) + /** + * Much of the 'What?' command can be eliminated. But until we are fully debugged, it is + * good to have the extra information. Soon... we prune this to just a few items + */ + void unified_bed_leveling::g29_what_command() { + report_state(); + + if (storage_slot == -1) + SERIAL_ECHOPGM("No Mesh Loaded."); + else + SERIAL_ECHOPAIR("Mesh ", storage_slot, " Loaded."); + SERIAL_EOL(); + serial_delay(50); + + #if ENABLED(ENABLE_LEVELING_FADE_HEIGHT) + SERIAL_ECHOLNPAIR_F("Fade Height M420 Z", planner.z_fade_height, 4); + #endif + + adjust_mesh_to_mean(g29_c_flag, g29_constant); + + #if HAS_BED_PROBE + SERIAL_ECHOLNPAIR_F("Probe Offset M851 Z", probe.offset.z, 7); + #endif + + SERIAL_ECHOLNPAIR("MESH_MIN_X " STRINGIFY(MESH_MIN_X) "=", MESH_MIN_X); serial_delay(50); + SERIAL_ECHOLNPAIR("MESH_MIN_Y " STRINGIFY(MESH_MIN_Y) "=", MESH_MIN_Y); serial_delay(50); + SERIAL_ECHOLNPAIR("MESH_MAX_X " STRINGIFY(MESH_MAX_X) "=", MESH_MAX_X); serial_delay(50); + SERIAL_ECHOLNPAIR("MESH_MAX_Y " STRINGIFY(MESH_MAX_Y) "=", MESH_MAX_Y); serial_delay(50); + SERIAL_ECHOLNPAIR("GRID_MAX_POINTS_X ", GRID_MAX_POINTS_X); serial_delay(50); + SERIAL_ECHOLNPAIR("GRID_MAX_POINTS_Y ", GRID_MAX_POINTS_Y); serial_delay(50); + SERIAL_ECHOLNPAIR("MESH_X_DIST ", MESH_X_DIST); + SERIAL_ECHOLNPAIR("MESH_Y_DIST ", MESH_Y_DIST); serial_delay(50); + + SERIAL_ECHOPGM("X-Axis Mesh Points at: "); + LOOP_L_N(i, GRID_MAX_POINTS_X) { + SERIAL_ECHO_F(LOGICAL_X_POSITION(mesh_index_to_xpos(i)), 3); + SERIAL_ECHOPGM(" "); + serial_delay(25); + } + SERIAL_EOL(); + + SERIAL_ECHOPGM("Y-Axis Mesh Points at: "); + LOOP_L_N(i, GRID_MAX_POINTS_Y) { + SERIAL_ECHO_F(LOGICAL_Y_POSITION(mesh_index_to_ypos(i)), 3); + SERIAL_ECHOPGM(" "); + serial_delay(25); + } + SERIAL_EOL(); + + #if HAS_KILL + SERIAL_ECHOLNPAIR("Kill pin on :", int(KILL_PIN), " state:", int(kill_state())); + #endif + + SERIAL_EOL(); + serial_delay(50); + + #if ENABLED(UBL_DEVEL_DEBUGGING) + SERIAL_ECHOLNPAIR("ubl_state_at_invocation :", ubl_state_at_invocation, "\nubl_state_recursion_chk :", ubl_state_recursion_chk); + serial_delay(50); + + SERIAL_ECHOLNPAIR("Meshes go from ", hex_address((void*)settings.meshes_start_index()), " to ", hex_address((void*)settings.meshes_end_index())); + serial_delay(50); + + SERIAL_ECHOLNPAIR("sizeof(ubl) : ", (int)sizeof(ubl)); SERIAL_EOL(); + SERIAL_ECHOLNPAIR("z_value[][] size: ", (int)sizeof(z_values)); SERIAL_EOL(); + serial_delay(25); + + SERIAL_ECHOLNPAIR("EEPROM free for UBL: ", hex_address((void*)(settings.meshes_end_index() - settings.meshes_start_index()))); + serial_delay(50); + + SERIAL_ECHOLNPAIR("EEPROM can hold ", settings.calc_num_meshes(), " meshes.\n"); + serial_delay(25); + #endif // UBL_DEVEL_DEBUGGING + + if (!sanity_check()) { + echo_name(); + SERIAL_ECHOLNPGM(" sanity checks passed."); + } + } + + /** + * When we are fully debugged, the EEPROM dump command will get deleted also. But + * right now, it is good to have the extra information. Soon... we prune this. + */ + void unified_bed_leveling::g29_eeprom_dump() { + uint8_t cccc; + + SERIAL_ECHO_MSG("EEPROM Dump:"); + persistentStore.access_start(); + for (uint16_t i = 0; i < persistentStore.capacity(); i += 16) { + if (!(i & 0x3)) idle(); + print_hex_word(i); + SERIAL_ECHOPGM(": "); + for (uint16_t j = 0; j < 16; j++) { + persistentStore.read_data(i + j, &cccc, sizeof(uint8_t)); + print_hex_byte(cccc); + SERIAL_CHAR(' '); + } + SERIAL_EOL(); + } + SERIAL_EOL(); + persistentStore.access_finish(); + } + + /** + * When we are fully debugged, this may go away. But there are some valid + * use cases for the users. So we can wait and see what to do with it. + */ + void unified_bed_leveling::g29_compare_current_mesh_to_stored_mesh() { + const int16_t a = settings.calc_num_meshes(); + + if (!a) { + SERIAL_ECHOLNPGM("?EEPROM storage not available."); + return; + } + + if (!parser.has_value() || !WITHIN(g29_storage_slot, 0, a - 1)) { + SERIAL_ECHOLNPAIR("?Invalid storage slot.\n?Use 0 to ", a - 1); + return; + } + + g29_storage_slot = parser.value_int(); + + float tmp_z_values[GRID_MAX_POINTS_X][GRID_MAX_POINTS_Y]; + settings.load_mesh(g29_storage_slot, &tmp_z_values); + + SERIAL_ECHOLNPAIR("Subtracting mesh in slot ", g29_storage_slot, " from current mesh."); + + GRID_LOOP(x, y) { + z_values[x][y] -= tmp_z_values[x][y]; + TERN_(EXTENSIBLE_UI, ExtUI::onMeshUpdate(x, y, z_values[x][y])); + } + } + + #endif // UBL_DEVEL_DEBUGGING + +#endif // AUTO_BED_LEVELING_UBL |