| 摘要 |
<p>A device for projecting an alignment guide (34,36) onto a workpiece comprises a mount (2) for mounting the device on or upon a workpiece and a self levelling projector (12) for projecting the alignment guide (34,36) in a predetermined orientation relative to the vertical. The projector (12) is articulated to the mount (2) so that the alignment guide (34,36) emanates from that point on the workpiece where the mount (2) is situated.</p> |
