hi everyone, I have the latest version of tank, I imposed all tank details, and the program finishes the error checking, and creates a .txt document with a continuously increasing size (I stopped it at 7 GB!) inside the folder where there's the input file, without creating the final report. I suppose this is an internal iteration file leading to the final report.

Do you have any opinion which may help?

Thanks for your help.

The problem is likely the bolt design routine, which is new in Version 2.50. Insure you have the latest update from the website. If you still have a problem after that, e-mail me your input (.TKI) file so I can take a look at it.