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MarlinFirmware / Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
https://marlinfw.org
GNU General Public License v3.0
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Marlin 1.1.0 auto bed leveling motors struggle and wont probe properly #6844

Closed stefi01 closed 7 years ago

stefi01 commented 7 years ago

never mind, i worked it out, default x and y speed for probing was set on 8000 as default, bit fast i think

using an inductive sensor, the x-y motors struggle and skip and it seems to think 400mm is about 50mm, when the printer is normally moving around the bed, the calibration is spot on and no skipping motors, motor drivers drv8825 with 1 and 2 jumper removed so is 16 ms, z axis is no problem and the sensor does detect the bed. version marlin 1.1.01, already tried rc8 and 1.1

the whole sensing area according to the printer is about 4 inches by 10 as that is all it will probe

/**

if ENABLED(MESH_BED_LEVELING) || ENABLED(AUTO_BED_LEVELING_BILINEAR) || ENABLED(AUTO_BED_LEVELING_UBL)

// Gradually reduce leveling correction until a set height is reached, // at which point movement will be level to the machine's XY plane. // The height can be set with M420 Z //#define ENABLE_LEVELING_FADE_HEIGHT

endif

if ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR)

// Set the number of grid points per dimension.

define GRID_MAX_POINTS_X 3

define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X

// Set the boundaries for probing (where the probe can reach).

define LEFT_PROBE_BED_POSITION 40

define RIGHT_PROBE_BED_POSITION 420

define FRONT_PROBE_BED_POSITION 30

define BACK_PROBE_BED_POSITION 440

// The Z probe minimum outer margin (to validate G29 parameters).

define MIN_PROBE_EDGE 10

// Probe along the Y axis, advancing X after each column //#define PROBE_Y_FIRST

if ENABLED(AUTO_BED_LEVELING_BILINEAR)

// Beyond the probed grid, continue the implied tilt?
// Default is to maintain the height of the nearest edge.
//#define EXTRAPOLATE_BEYOND_GRID

//
// Experimental Subdivision of the grid by Catmull-Rom method.
// Synthesizes intermediate points to produce a more detailed mesh.
//
//#define ABL_BILINEAR_SUBDIVISION
#if ENABLED(ABL_BILINEAR_SUBDIVISION)
  // Number of subdivisions between probe points
  #define BILINEAR_SUBDIVISIONS 3
#endif

endif

elif ENABLED(AUTO_BED_LEVELING_3POINT)

// 3 arbitrary points to probe. // A simple cross-product is used to estimate the plane of the bed.

define ABL_PROBE_PT_1_X 80

define ABL_PROBE_PT_1_Y 380

define ABL_PROBE_PT_2_X 450

define ABL_PROBE_PT_2_Y 75

define ABL_PROBE_PT_3_X 450

define ABL_PROBE_PT_3_Y 450

elif ENABLED(AUTO_BED_LEVELING_UBL)

//=========================================================================== //========================= Unified Bed Leveling ============================ //===========================================================================

define UBL_MESH_INSET 1 // Mesh inset margin on print area

define GRID_MAX_POINTS_X 3 // Don't use more than 15 points per axis, implementation limited.

define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X

define UBL_PROBE_PT_1_X 20 // These set the probe locations for when UBL does a 3-Point leveling

define UBL_PROBE_PT_1_Y 180 // of the mesh.

define UBL_PROBE_PT_2_X 60

define UBL_PROBE_PT_2_Y 180

define UBL_PROBE_PT_3_X 20

define UBL_PROBE_PT_3_Y 40

//#define UBL_G26_MESH_EDITING // Enable G26 mesh editing

elif ENABLED(MESH_BED_LEVELING)

//=========================================================================== //=================================== Mesh ================================== //===========================================================================

define MESH_INSET 10 // Mesh inset margin on print area

define GRID_MAX_POINTS_X 3 // Don't use more than 7 points per axis, implementation limited.

define GRID_MAX_POINTS_Y GRID_MAX_POINTS_X

//#define MESH_G28_REST_ORIGIN // After homing all axes ('G28' or 'G28 XYZ') rest Z at Z_MIN_POS

endif // BED_LEVELING

/**

if ENABLED(LCD_BED_LEVELING)

define MBL_Z_STEP 0.025 // Step size while manually probing Z axis.

define LCD_PROBE_Z_RANGE 4 // Z Range centered on Z_MIN_POS for LCD Z adjustment

endif

/**

// @section homing

// The center of the bed is at (X=0, Y=0) //#define BED_CENTER_AT_0_0

// Manually set the home position. Leave these undefined for automatic settings. // For DELTA this is the top-center of the Cartesian print volume. //#define MANUAL_X_HOME_POS 0 //#define MANUAL_Y_HOME_POS 0 //#define MANUAL_Z_HOME_POS 0

// Use "Z Safe Homing" to avoid homing with a Z probe outside the bed area. // // With this feature enabled: // // - Allow Z homing only after X and Y homing AND stepper drivers still enabled. // - If stepper drivers time out, it will need X and Y homing again before Z homing. // - Move the Z probe (or nozzle) to a defined XY point before Z Homing when homing all axes (G28). // - Prevent Z homing when the Z probe is outside bed area.

define Z_SAFE_HOMING

if ENABLED(Z_SAFE_HOMING)

define Z_SAFE_HOMING_X_POINT ((X_MIN_POS + X_MAX_POS) / 2) // X point for Z homing when homing all axis (G28).

define Z_SAFE_HOMING_Y_POINT ((Y_MIN_POS + Y_MAX_POS) / 2) // Y point for Z homing when homing all axis (G28).

endif

// Homing speeds (mm/m)

define HOMING_FEEDRATE_XY (50*60)

define HOMING_FEEDRATE_Z (4*60)

github-actions[bot] commented 2 years ago

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.