JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Fixed 3D Constraint Used to fix the linear and rotary movement of a 3D element. You can access this tool from the following: Ribbon: Modeling > Constraints > 3D Ribbon: Drawing > Constraints > 3D Toolbox: 3D Constraint Tools Key-in: CONSTRAINT3D CREATE FIXED To Apply a Fixed 3D Constraint Parent topic: Applying Constraints