1. ring
1.1 Create a cylinder
1.2 Cylinder fine adjustment
Adjust the vertices to: 16
1.3 Zoom
In the object properties, the Z-axis scaling is 0.244
1.4 Apply scaling
Generally, it is recommended to click Apply Transform (shortcut key Ctrl+A) for objects that have been scaled or rotated. Otherwise, the object will be easily deformed and may cause problems in later rendering.
1.5 Object attributes return to default
1.6 Enter editing mode
Press Tab to enter editing mode, and you can pay attention to the key prompts in the lower left corner (plug-in function)
1.7 Interpolation surface
Select the upper and lower faces, click on the inset face, and delete the selected faces.
1.8 Bridging edge loops
Select the upper and lower edge loops and click Edge|Bridge Edge Loop
1.9 Add surface subdivision modifier
1.10 Smooth shading
1.11 Add circumcision
2. Scroll
2.1 Add curve
Select path curve
2.2 Enter the orthogonal front view
2.3 Add nodes
Press the E key to add a node
2.4 Curve to 3D
Extrude the thickness of the curve in the object data properties, and adjust the rotation angle in the physical properties.