From d421f5250d7dad41bc090aa09a2dca72c20ca1e6 Mon Sep 17 00:00:00 2001 From: AnHardt Date: Mon, 6 Jul 2015 19:55:34 +0200 Subject: [PATCH] Correct the sign of zprobe_zoffset for G29 (PR#@391) Sign flipped with #2167. See also comments https://github.com/MarlinFirmware/Marlin/issues/2040#issuecomment-118568355 and following. --- Marlin/Marlin_main.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp index f42f5b0a28..eb33589d94 100644 --- a/Marlin/Marlin_main.cpp +++ b/Marlin/Marlin_main.cpp @@ -2835,8 +2835,8 @@ inline void gcode_G28() { real_z = (float)st_get_position(Z_AXIS) / axis_steps_per_unit[Z_AXIS]; //get the real Z (since the auto bed leveling is already correcting the plane) apply_rotation_xyz(plan_bed_level_matrix, x_tmp, y_tmp, z_tmp); // Apply the correction sending the probe offset - //line below controls z probe offset, zprobe_zoffset is the actual offset that can be modified via m851 - current_position[Z_AXIS] = z_tmp - real_z + zprobe_zoffset; // The difference is added to current position and sent to planner. + //line below controls z probe offset, zprobe_zoffset is the actual offset that can be modified via m851 or is read from EEPROM + current_position[Z_AXIS] = z_tmp - real_z - zprobe_zoffset; // The difference is added to current position and sent to planner. sync_plan_position(); } #endif // !DELTA