Use AutoCAD text substitution function to quickly modify sketch

Drawing drawings in AutoCAD with similar shapes but with different sizes is a problem we often encounter, drawing in standard sizes, time-consuming and laborious. In fact, the purpose of some simple sketches is only to enable the processing workers to understand the size and shape of the parts, so in order to improve efficiency, we can use the "word substitution" method to modify the already drawn approximate graphics to quickly get the new sketch.

As shown in the figure, this is a flange of 120MM outside diameter drawn according to the original size of the part, and in order to get a draft of the flange with 125MM outside diameter, is it necessary to draw a new circle? No need! We only need to use the word substitution method to modify the callout can solve this problem.

Use the shortcut key "Ctrl+1" to open the Object attribute manager. Use the mouse to select the outer diameter callout "ф120" that we want to modify, use the mouse to drag down the scroll bar in the object attribute manager to find the position of the text substitution in the object Attribute manager, and fill in "%%c125" in the text substitution: