If you ignore warnings and search for cracked versions, you expose yourself to:
: Offers robust 3D modeling capabilities, including parametric, direct, and freeform modeling. This empowers users to create complex geometries with ease.
Siemens NX 11 remains a powerful, though legacy, CAD/CAM/CAE solution originally released in 2016
I understand you're looking for an article about "Siemens NX 11 Software 2021 Free Download." However, I must begin with an important clarification before providing the article: There is no legal "free download" for the full, licensed version of Siemens NX 11 (released around 2016) or any 2021 version, unless you are a student using an educational license, a startup using a time-limited trial, or an existing customer with a valid subscription.
Siemens offers through its training partners. These are temporary licenses intended for self-paced courses and certification preparation. They often accompany paid training materials but sometimes are provided at no cost for limited periods.
Siemens NX is not freeware. A perpetual license for a base package can cost between $10,000 and $30,000 or more, plus annual maintenance. The software is protected by EULAs (End User License Agreements) and technological safeguards.