Method of drawing three-dimensional spring with AutoCAD

1 first draw the vertical auxiliary line in the CAD, take this intersection as the midline, make the circle.

2) Coloring, set the user coordinates as follows

3 Solid planer, select XY plane, after the x points, select B to keep both sides

4) below is the rotation. First, move the user coordinates to the top of the planer, as in the figure. Then the three-dimensional rotation, first select one side, with X as the pivot point of rotation to the center of the specified angle, and then rotate a negative angle on the other side.

5 finally the array, pay attention to observe the adjustment height.

Once it's done, how long you want it!