New constraint tools and settings
Last one wins with the new Relax Mode
You can use the new Relax Mode to modify geometries and apply new constraints to geometries that are already constrained.
With Relax Mode turned ON, when you add new constraints or dimensions, conflicting constraints are removed. You can modify constraints of an existing model by dragging the selected sketch geometry freely, even when they are already constrained.
You can remove all conflicting constraints except Coincident, Smooth, Tangent, Symmetry, Pattern, and Project by adding new dimensions or constraints. When you cannot add new constraints successfully, remove conflicting constraints manually.
Improved access to 2D sketch constraints settings
All 2D sketch constraints-related settings are reorganized into one new command called Constraint Settings.
The new setting Display constraints on creation provides clear feedback on the constraint as you create it.
The new setting Show constraints for selected objects highlights constraints for geometry that you select in the graphics window. When displayed, you can select any constraint to delete it.
Delete Constraints and Delete Coincident Constraint
When geometry is selected, you can access the new Delete Constraints option from the context menu to remove all constraints. Delete Constraints does not remove Coincident constraints . You can remove coincident constraints with the Delete Coincident Constraint command.
Sketch Behavior Improvements
While creating sketch geometry, endpoints are created on the mouse down/click action instead of mouse up/release. Now it is easier to connect endpoints and close sketch loops.
Sketch Offset improvements
When you create sketch geometry with the
Sketch tab
Modify panel
Offset command, line, arc, or ellipse segments of the offset geometry are automatically removed as soon as they reach zero length. As a result, no flipped or degenerated geometry segments are created, and you can use wider intervals of offset distances.
The following illustrations show examples of geometry created with the improved Offset command. The original sketch geometry is highlighted red, geometry created by the Offset command with sample offset distances is black.
![](https://help.autodesk.com/cloudhelp/2018/ENU/InventorLT-WhatsNew/images/GUID-0505466E-2A26-49C1-B436-6ADE46D4537A.png)
Productivity improvements in Sketch
Create point at virtual intersection of two sketch elements
You can now capture the virtual intersection between two elements in 2D sketch, and autocapture the virtual On Curve inference in a 2D sketch. The existing constraint inference for real intersect elements can be applied to virtual intersections as well.
Specify a text style when creating text in your sketch
When creating sketch text, you can now select from a list of available (active) text styles that exist within your document.
Look at behavior enhancements
Two new settings are added to the Application Options - Display tab:
Perform Minimum Rotation Rotates the sketch at a minimum angle to make the sketch plane parallel with the screen and make the X axis of the sketch coordinate system horizontal or vertical.
Align with Local Coordinate System orients the X axis of the sketch coordinate system horizontally/right positive, and the Y axis vertically/up positive