Suppose there are two points at the ends of an object, and the two points form a line that passes through the object. The object rotates around this line as its rotation center. When each part of the object rotates to a fixed position, it has the same shape, which is the standard solid of revolution.

**What’s the difference between solid of revolution marking and rotation marking**

●Original Rotation Marking：

When the original technology marks the workpiece on the rotating axis, whether using 2D or 3D scanhead, it can only mark on a plane or a surface with a small radian. This method is to divide the drawing file into many parts, and then rotate the workpiece to process the next section after a small section is processed, and the whole workpiece is completed by multi-section splicing. When using original rotation marking, there will be some problems such as segmentation gaps or fringe color difference on the workpiece.

●Solid of Revolution Marking：

Solid of revolution marking is a processing method for the rotary body with high and low drop. The software calculates according to the filling density, so that the partition size is equal to or close to the filling density, avoiding the problem of seams in the effect of marking. In addition, because the diameter of each part of the solid of revolution is not the same, there will exist changes in the height of the focus when marking. Through the expansion of the 3D model, the accurate height value of each part of the marking object can be obtained, so that each part is marked on the focus, and there will be no uneven marking color due to the deviation of the focus.

FEELTEK’s dynamic focusing system equipped with rotation function of our LenMark_3DS software can achieve seamless solid of revolution marking, with neat graphics and no deformation. Let’s take a tour of FEELTEK’s solid of revolution marking samples: