Parametric Constraints …the Series. Part 3

In this part we will take a look at is how constraints work with fillets and other objects. Creating a fillet automatically applies coincident and tangent constraints between the new fillet arc and the existing lines to help maintain the fillet if the arc or lines are modified. Likewise, creating a chamfer applies coincident constraints between the new chamfer line and the existing lines.

Fillets and Chamfers using Inferred Constraints

Fillets and Chamfers using Inferred Constraints

After you’ve applied constraints, you can temporarily relax (disable) them by pressing the CTRL key while editing constrained objects. You can see the different effects as I grip stretch the line.

Not using CTRL key -Vs.- Holding down the CTRL

AutoCAD 2011 has  improved the use of geometric constraints for ellipses and text. You can now apply Parallel, Perpendicular, Collinear, Horizontal, and Vertical constraints between the major or minor axes of an ellipse and other objects. When applying the constraint you will see a red axis line appear when you hover the cursor over the ellipse.

Constraining Ellipses

You can also apply Parallel, Perpendicular, Collinear, Horizontal, and Vertical constraints to the angle of text objects to control their rotation. In addition, text and mtext objects behave consistently with the insertion point of the object being the cons, allowing the angle of the edge of the street rotate the text around the insertion point of the text.

Constraining text – Before and After

Well that probably enough for now, time to let you try those out (I also know it’s that time of the season and you already have a lot on your mind.), but we still have a few more tips to show you about Constrains before the end of the year. Thanks again and check back in soon the see the continuing series.

Isaac is the go-to guy for the AutoCAD skills that lie at the foundation of AEC software tools and increased productivity. And you’d be hard pressed to find someone who knows more than he does about how to be more efficient in AutoCAD. Isaac can present best strategies and tips for productivity because he understands his audience and what they do. He has a high number of repeat customers who like his dynamic style and keep returning to learn more from him.