KINEMATIC CALIBRATION OF A HEXAPOD MACHINE TOOL BY USING CIRCULAR TEST

A combination of travel bag and folding table which includes a travel bag, a table board having a first end pivoted to a top side of the travel bag and a free end, a retractable stand having one end pivoted to the free end of the table board and an opposite end mounted with a foot, hinge means coupled between the travel bag and the table board for permitting the table board to be turned about an axis within 90 DEG , first lock means for securing the table board, the retractable stand and the travel bag together when the table board and the retractable stand are collapsed, and second lock means for stopping the wheels of travel bag from moving.