| 摘要 |
A swivel-base work platform is disclosed that comprises a hemisphere unit rotatably disposed within a base unit, wherein a work piece is secured to a work surface of the hemisphere unit and is manipulated to a variety of positions. The swivel-base work platform further comprises a hard-stop disk disposed at a lower end of the hemisphere unit, which engages the base unit in order to limit rotation of the hemisphere unit and the work piece. Further, the size of the hard-stop disk may be varied to adjust the range of motion of the hemisphere unit. Preferably, the work piece is secured to the work surface of the hemisphere unit using a vacuum source.
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