the vacuum cup 10 d according to the present invention is shown in fig4 a and a bottom perspective view of the fourth embodiment of the vacuum cup 10 d is shown in fig4 b the vacuum cup 10 d is similar to the vacuum cups 10 a 10 b and 10 c but includes side pads 28 along one edge of the vacuum cup bottom to cooperate with support rails of a machines such cup is used on machines such as a biesse rover 20 machine the vacuum cup 10 d further includes four fastener passages 30 for securing the cup to the machine a top view of the second embodiment of the vacuum cup 10 b is shown in fig5 a a bottom view of the second embodiment of the vacuum cup 10 b is shown in fig5 b and an end view of the second embodiment of the vacuum cup 10 b is shown in fig5 c a cross sectional view of the second embodiment of the vacuum cup 10 b taken along line 6 a 6 a of fig5 a is shown in fig6 a and a cross sectional view of the second embodiment of the vacuum cup 10 b taken along line 6 b 6 b of fig5 a is shown in fig6 b the raised edge 12 rises approximately 0 2 mm above the work piece supports 14 a top perspective view of a fifth embodiment of the vacuum cup 10 e according to the present invention is shown in fig7 a a bottom perspective view of the fifth embodiment of the vacuum cup 10 e is shown in fig7 b.