| 摘要 |
<p>PURPOSE:To produce parallelism easily and accurately, by securing rotation of a stage to which a pattern draft and the digitizing paper are set and then turning the stage on the basis of an extent of shift to the standard position obtained from an arithmetic process. CONSTITUTION:A pattern draft is put on a stage to produce rough parallelism, and then the pattern draft is fixed to the stage. Then the digitizing paper is stuck onto the pattern draft. A compensation switch 10 is turned on to actuate a compensation controller 16, and then a head 4 is shifted to be set at a rotary center shaft Cs. Then a recognition button is pushed to supply an optional recognized point in the form of the rotary center value during an arithmetic process for an arithmetic processor 17. Then the recognition buttons are pushed at two areas to supply the position information of the optional recognized two points of the processor 17. The processor 17 calculates both the turning direction and the turning extent of the stage. Based on the result of these calculations, a pulse motor M is driven to turn the stage by a prescribed angle.</p> |
