| 摘要 |
A method and apparatus for controlling the attitude of hand-held article processing is disclosed. This includes undertaking the steps of presenting a handheld drill to an article to be drilled. Causing rotary laser beam generators mounted on a chuck of the drill to produce a circular or distorted circular pattern on the workpiece being drilled. Using the circular pattern to interpret the attitude to be adopted by the drill and modifying or not the attitude of the drill accordingly. Providing an association with the circular pattern, a proportion-indicator to assist the visual assessment of the pattern by the user. This results in the user being able to more readily visually or mentally assess the proportion of the circular pattern which is visible during use. As a result it can likewise be decided whether or not the circle is distorted and thus whether the article processing apparatus is orthogonal to its workpiece. |
