Dimension is the most important content in the mechanical drawing except for the graphics. According to the dimension demand of the mechanical drawing, the latest ISO 1101:2004 Geometrical Product Specifications(GPS):geometric tolerance, shape, direction, position, and run-out tolerance dimension, and the GB/T 1182-2008Geometrical Product Specifications(GPS):geometric tolerance, shape, direction, location and run-out tolerance dimension, ZWCAD MECHANNICAL provides plenty of symbols All of the dimension symbol will change according to the scale of the drawing.
The symbol dimension in this chapter includes roughness, shape tolerance, datum dimension, shape recognition, benchmark target, taper tilt dimension, center hole dimension, round hole dimension, elevation symbol and welding symbols. All of these options located at the “Symbol Dimension” in the ZWCADM drop-down menu. You can also check them through the toolbar.
CAD symbols can be dimension in the engineering drawing freely. You can dimension the symbols in the blank area, or on the graphics and dimensions. Further more, the symbol dimension can be adsorbed on these goals. Namely after be dimensioned on the target, move the target, the symbol will move along with the target. In addition, some symbols can automatically extend a lead along the extension line of the graphic surface or edge of the dimension, which clearly specify the position and indication of the target. For a quick edition, you can select the symbol dimension and right-click the mouse, then the corresponding command which is related to the symbols will pop up.
All of the symbol dimensions support for the super-edit. Double-click the symbols in the engineering, you can modify and edit through the corresponding symbol dialog box popped up. It is also available to drag the symbol dimension through the pinch point, which includes changing the direction of the symbols and the position of the leads.
Last but not least, in order to satisfy the diversified requirement of the users, the symbol dimension is available for the customization. You can modify the current target and the content of the symbols through the Configuration option.
CAD dimension: http://www.zwcad.com/jishushequ/zwcadwenti/488.html