I upgraded/switched from Kimbra/Marlin to the RC3 release of Marlin on a Ramps 1.4. I have ABL enabled and when I do a G29 it moves to the max X min Y to start and this seems to be throwing the whole bed compensation backwards.
If I print a 3 layer perimeter (.2mm layer height) around a part the left side (.71mm) is thicker than the right (.60mm).
Last time I used marlin it started in the min x min y position and moved from there probing the bed.
Did I miss configure something?
//===========================================================================
//============================ Bed Auto Leveling ============================
//===========================================================================
// @section bedlevel
#define AUTO_BED_LEVELING_FEATURE // Delete the comment to enable (remove // at the start of the line)
#define DEBUG_LEVELING_FEATURE
#define Z_MIN_PROBE_REPEATABILITY_TEST // If not commented out, Z-Probe Repeatability test will be included if Auto Bed Leveling is Enabled.
#if ENABLED(AUTO_BED_LEVELING_FEATURE)
// There are 2 different ways to specify probing locations:
//
// - "grid" mode
// Probe several points in a rectangular grid.
// You specify the rectangle and the density of sample points.
// This mode is preferred because there are more measurements.
//
// - "3-point" mode
// Probe 3 arbitrary points on the bed (that aren't colinear)
// You specify the XY coordinates of all 3 points.
// Enable this to sample the bed in a grid (least squares solution).
// Note: this feature generates 10KB extra code size.
#define AUTO_BED_LEVELING_GRID
#if ENABLED(AUTO_BED_LEVELING_GRID)
#define LEFT_PROBE_BED_POSITION 30
#define RIGHT_PROBE_BED_POSITION 190
#define FRONT_PROBE_BED_POSITION 10
#define BACK_PROBE_BED_POSITION 190
#define MIN_PROBE_EDGE 10 // The Z probe minimum square sides can be no smaller than this.
// Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 6
#else // !AUTO_BED_LEVELING_GRID
// Arbitrary points to probe.
// A simple cross-product is used to estimate the plane of the bed.
#define ABL_PROBE_PT_1_X 15
#define ABL_PROBE_PT_1_Y 180
#define ABL_PROBE_PT_2_X 15
#define ABL_PROBE_PT_2_Y 15
#define ABL_PROBE_PT_3_X 180
#define ABL_PROBE_PT_3_Y 15
#endif // AUTO_BED_LEVELING_GRID
// Offsets to the Z probe relative to the nozzle tip.
// X and Y offsets must be integers.
#define X_PROBE_OFFSET_FROM_EXTRUDER 25 // Z probe to nozzle X offset: -left +right
#define Y_PROBE_OFFSET_FROM_EXTRUDER 0 // Z probe to nozzle Y offset: -front +behind
#define Z_PROBE_OFFSET_FROM_EXTRUDER -9.77 // Z probe to nozzle Z offset: -below (always!)
#define Z_RAISE_BEFORE_HOMING 4 // (in mm) Raise Z axis before homing (G28) for Z probe clearance.
// Be sure you have this distance over your Z_MAX_POS in case.
#define XY_TRAVEL_SPEED 8000 // X and Y axis travel speed between probes, in mm/min.
#define Z_RAISE_BEFORE_PROBING 25 // How much the Z axis will be raised before traveling to the first probing point.
#define Z_RAISE_BETWEEN_PROBINGS 3 // How much the Z axis will be raised when traveling from between next probing points.
#define Z_RAISE_AFTER_PROBING 10 // How much the Z axis will be raised after the last probing point.
//#define Z_PROBE_END_SCRIPT "G1 Z10 F12000\nG1 X15 Y330\nG1 Z0.5\nG1 Z10" // These commands will be executed in the end of G29 routine.
// Useful to retract a deployable Z probe.
//#define Z_PROBE_SLED // Turn on if you have a Z probe mounted on a sled like those designed by Charles Bell.
//#define SLED_DOCKING_OFFSET 5 // The extra distance the X axis must travel to pickup the sled. 0 should be fine but you can push it further if you'd like.
//If you have enabled the Bed Auto Leveling and are using the same Z Probe for Z Homing,
//it is highly recommended you let this Z_SAFE_HOMING enabled!!!
#define Z_SAFE_HOMING // This feature is meant to avoid Z homing with Z probe outside the bed area.
// When defined, it will:
// - Allow Z homing only after X and Y homing AND stepper drivers still enabled.
// - If stepper drivers timeout, it will need X and Y homing again before Z homing.
// - Position the Z probe in a defined XY point before Z Homing when homing all axis (G28).
// - Block Z homing only when the Z probe is outside bed area.
#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
// Support for a dedicated Z probe endstop separate from the Z min endstop.
// If you would like to use both a Z probe and a Z min endstop together,
// uncomment #define Z_MIN_PROBE_ENDSTOP and read the instructions below.
// If you still want to use the Z min endstop for homing, disable Z_SAFE_HOMING above.
// Example: To park the head outside the bed area when homing with G28.
//
// WARNING:
// The Z min endstop will need to set properly as it would without a Z probe
// to prevent head crashes and premature stopping during a print.
//
// To use a separate Z probe endstop, you must have a Z_MIN_PROBE_PIN
// defined in the pins_XXXXX.h file for your control board.
// If you are using a servo based Z probe, you will need to enable NUM_SERVOS,
// Z_ENDSTOP_SERVO_NR and SERVO_ENDSTOP_ANGLES in the R/C SERVO support below.
// RAMPS 1.3/1.4 boards may be able to use the 5V, Ground and the D32 pin
// in the Aux 4 section of the RAMPS board. Use 5V for powered sensors,
// otherwise connect to ground and D32 for normally closed configuration
// and 5V and D32 for normally open configurations.
// Normally closed configuration is advised and assumed.
// The D32 pin in Aux 4 on RAMPS maps to the Arduino D32 pin.
// Z_MIN_PROBE_PIN is setting the pin to use on the Arduino.
// Since the D32 pin on the RAMPS maps to D32 on Arduino, this works.
// D32 is currently selected in the RAMPS 1.3/1.4 pin file.
// All other boards will need changes to the respective pins_XXXXX.h file.
//
// WARNING:
// Setting the wrong pin may have unexpected and potentially disastrous outcomes.
// Use with caution and do your homework.
//
//#define Z_MIN_PROBE_ENDSTOP
#endif // AUTO_BED_LEVELING_FEATURE
Edited 1 time(s). Last edit at 12/06/2015 02:40AM by randyf1965.