Geometry on the facade - creating a three dimensional pattern on plaster

This video demonstrates the process of creating relief decorative elements on a building façade using cement-sand mortar. The artist demonstrates the manual method of forming identical recesses (niches) along the cornice, giving the structure a three-dimensional, 3D appearance. The video clearly illustrates how, using simple tools and precise movements, complex architectural elements are created without the use of prefabricated molds. Step-by-step description of the process The process of creating a decorative pattern consists of the following steps: Surface preparation: A layer of fresh, flexible cement mortar is applied to the wall and protruding cornice. The surface is pre-leveled. Marking: Using a spirit level and a special tool (or a cord), the artist draws a straight horizontal guide line, which serves as the lower boundary for the future recesses. Positioning the guide: The artist places the spirit level vertically against the wall, aligning it with the air bubble to ensure perfect accuracy. The level serves as a rigid guide (stop) for the molding tool. Cutting the element: Using a firm, confident motion from top to bottom, the craftsman draws a special semicircular trowel (scraper) across the mortar, cutting away excess cement and forming a vertical groove with a rounded top. Final sanding: The tool is used again to smooth the inner walls of the groove and remove any remaining mortar. Repeat the cycle: The craftsman moves the level an equal distance to the side and repeats the process, creating an even pattern around the entire perimeter of the cornice. Interesting facts Hand "3D printing": This technique is often called "Goulding" or hand-molded cornices in India and several other Asian countries. It replaces expensive pre-fabricated foam or plaster elements, making the decor durable, as it forms a monolithic part of the wall. A "what-has-been" tool: The round scraper used by the craftsman is often handcrafted from a piece of metal pipe or an old spoon welded to a handle. Its diameter determines the width and depth of the resulting niche. Time factor: Working with cement mortar "live" requires high speed and skill from the craftsman. If the mortar dries too much, it will crumble when cut; if it's too wet, the mold will float.