Issue: 

How to create the radius dimension with an extended arc line style？

Solution:

  1. Click Mechanical Annotation, click the drop-down icon to the right of Radius, and select Radius.
  2. Select the arc and hold down the Ctrl key to place the dimension on the arc extension line.


CN Solution★中望CAD机械版半径标注时如何延长尺寸线
JP Solution


★How to extend the dimension line when dimensioning a radius in ZWCAD MFG：https://confluence.zwcad.com/pages/viewpage.action?pageId=318931195