| 摘要 |
PURPOSE:To convert enlargeable and reducible data with a needle as the center into data with a frame as the center through a conversion arithmetic process to drive and control a zigzag sewing machine with rotation. CONSTITUTION:Data N(DELTAX, DELTAY, theta, W) with a needle as the center an is read at the step 1, and converted into data C(DELTAX, DELTAY, theta, W) with a frame as the center C through a conversion arithmetic process at the step 2. An x axis motor, a y axis motor, a frame turning motor and a needle bar swig motor are driven and controlled based on the converted data C(DELTAX, DELTAY, theta, W) to reproduce an embroidery pattern repeatedly.
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