Sweep oblique transition from inaccessible pinnacle

Transitions are used to connect two pipes of different diameters and are truncated cone whose upper base parallel to the lower base. Each base is a circle. The transition is made from sheet material (steel, plastic) welding. For making the transition is necessary to make the proper marking of the sheet material, t. E. To build a sheeting unfolding transition, then scan cut and weld to form a transition. When cutting should give allowance for processing edges. Daylight is connected with pipes to the weld. Thus, marking the transition to the construction reduces its scan in a sheeting.