遼字石油化工大學⊙ 6. Operation position: In order to reduce the number of setups, a rotational worktable or fixture is usually used to make sequential machining in different positions possible from a single setup. The job performend in one position is called one operation position Demontration of operation, operation step, position and cutting pass6. Operation position: In order to reduce the number of setups, a rotational worktable or fixture is usually used to make sequential machining in different positions possible from a single setup. The job performend in one position is called one operation position. Demontration of operation, operation step, position and cutting pass