3D circle perpendicular to edge or curve

Tool(s): 3D Circle

To draw a 3D circle that is centered on and perpendicular to an edge or curve

1. Click 3D Circle (How).
   

   Activate 3D Circle in one of the following ways

   • Actionbar:Role Draft Task Modeling Task area 3D Objects

   • Menu bar: Create Bonus Tools 3D Modeling

   • Palette: Tools Create area in the following module(s):

   3D Modeling

   Tip: Click Back to undo as many steps as you want.

2. Select Circle based on center on edge or curve in the Input Options.
3. Select the edge or curve for the center.

   A preview of the circle is attached to the crosshairs.

4. Define the center of the circle on the edge or curve.
5. Enter the radius of the circle.
6. Enter the start and end points of the arc or the starting angle and delta angle of the arc. To draw a full circle, press ESC.

   Allplan draws the arc in the center so that the arc is perpendicular to the edge or curve.

   

   (A) Edge of a cube
   (B) Preview of circle
   (C) Center on edge or curve
   (D) Radius (click or keyboard)
   (E) Part of circle at edge of cube
   (F) Part of circle raised as a surface along edge of cube using ‘Extrude Along Path’