Valentina
The program for building patterns “Valentine”, as in the previous case, is absolutely free. It is open source and developed by a group of enthusiasts. The application is still supported and receives updates regularly.
The program allows you to create full-fledged parametric patterns. Here it is enough to change the measurements and increments of any product from the base (you can add your own) – and as a result, you get a completely individual project with its own dimensions.
Moreover, the process of constructing patterns is simplified as much as possible. The project itself is built on the basis of formulas, and using a local calculator table, we enter the necessary values and get a pattern with the required dimensions at the output.