Add the posibility of setting home offset for seperate axis , and upd… #27015
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…ate the previous offset value rather than resetting it inM428.cpp this pull request adds two functions to M428: 1- by sending M428 <axis char> marlin will set the homing offset in the current position for the mentioned axis, <axis char> can be one or more axis like X, Y, Z, A, .... or XYABC. 2- by sending M428 P XYZ for example, marlin will add the last offset value for the mentioned axis to the current position and set it as the new homing offset, this function can be useful to set the physical zero position for the mentioned axis, and without using P marlin will just replace the old home offset value based the current position. example: G1 Z5 ;will move Z axis to position 5 M428 Z; will set the position 5 as the new zero and will deduct 5 from the overall length G28 Z ; home Z axis G1 Z0 ; will move Z axis to the physical position that used to be called 5 before. now here we have two ways to set the homing offset again: G428 ; will set the offset to 0 therefore the last offset will be just replaced. G428 P ; will update the homing offset and make the current position as the physical zero position no matter what is the current offset in the memory.
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This pull request adds two functions to M428:
By sending M428 marlin will set the homing offset in the current position for the mentioned axis, can be one or more axis like X, Y, Z, A, .... or XYABC.
By sending M428 P XYZ for example, marlin will add the last offset value for the mentioned axis to the current position and set it as the new homing offset, this function can be useful to set the physical zero position for the mentioned axis, and without using P marlin will just replace the old home offset value based the current position.
Example:
now here we have two ways to set the homing offset again:
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#27011