Hand-Troweled Rounded Corners: Radii Not Entirely Uniform

A hand-troweled rounded corner. The junction of the walls is an arc with a radius of about fifteen centimeters, but upon closer inspection, the curvature varies slightly from top to bottom, having been smoothed by a craftsman's hand and trowel repeatedly, not made by a mold; the curved surface has slight undulations and trowel marks. The gradient of light falling on the curved surface is therefore not perfectly smooth, with subtle variations in brightness and darkness. Avoid: using pre-fabricated rounded edge strips to create a mechanically perfect arc, making the radius of the rounded corner too small to be noticeable, making the curved surface absolutely smooth, using sharp right angles.

Translated from Chinese by AI.

一處手工抹出的圓角轉折。牆與牆的交界是一道半徑約十五公分的圓弧,但仔細看上下的弧度略有差異,是師傅用手與鏝刀一次次抹出來的,不是模具做的;弧面上有輕微的起伏與抹痕。光落在弧面上的漸層因此不是完美平滑的,有細微的明暗變化。避免:使用預製圓弧收邊條做出機械感的完美弧、讓圓角的半徑太小看不出來、把弧面做得絕對平滑、使用銳利的直角。