https://forums.autodesk.com/t5/hsm-post-processor-forum/haas-post-mod-position-table-center-of-machine/m-p/6103572#M28188 Thanks, Andrew!<BR /><BR />As Andrew mentions above, hard coding a value of -18. will not return an equivalent value if machining in millimeters.<BR /><BR />Use the function toPreciseUnit(value, unit) to return the proper value in the opposite unit. <BR /><BR />Please see attached screenshot and update post. Sun, 22 Mar 2015 15:00:07 GMT daniel.vidakovich 2015-03-22T15:00:07Z