The entire process consists of three steps:
1) determining the purpose of calculation (question mark symbol)
2) entering the data
3) displaying the result of a calculation.
The result: we have all the necessary information which are needed to create and fold your pipe. Drawings clearly show you the way of what you are looking for and what you need to do. It speeds up the process of work of pipe fitters.
The application is being updated all the time and oriented to develop and extend, basing on suggestions of other pipe fitters.