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From Wikipedia, the free encyclopedia
Developer(s)Top Systems
Initial release1992[1]
Stable release / Jun 2024[2]
Operating systemWindows (7,8.1,10,11)
TypeCAD software

T-FLEX CAD (T-FLEX) – is a Russian-made parametric computer-aided design (CAD) software application for 2D design, drafting, and 3D solid modeling based on commercial Parasolid geometric kernel.[1] It's primarily developed and distributed by Russian software company Top Systems based in Russia. Supported platforms are limited to Microsoft Windows. Amongst features T-FLEX offers support for various CAD formats and diverse localizations.[1]


T-FLEX CAD provides parametric, adaptive and associative technology aimed at family-of-parts manufacturers or other design situations that use similar geometry but require many different sizes or permutations. Entities and their parameters in T-FLEX CAD can be related to each other. Variables can be assigned for component names, visibility, material, any numeric or text attribute of any entity. They can then be processed with algebraic or logical expression to control the behavior of the design.[3][4]

File formats[edit]

T-FLEX native file format is *. grb


T-FLEX CAD supports parasolid-compatible file formats, including:[5]

See also[edit]


  1. ^ a b c "T-FLEX | Advanced Parametric Design Solutions". www.tflex.com. Retrieved 2022-12-09.
  2. ^ "Top Systems released T-FLEX CAD 17 with new tools for complex high-tech product design".
  3. ^ "Parametric CAD Provides 20 Iterations In 30 Minutes To Solve Difficult Design Problem". Modern Machine Shop Online. Gardner Publications, Inc. Archived from the original on 2006-11-15. Retrieved 2008-03-13.
  4. ^ Toupin, Laurie Ann (October 1999). "Homegrown CAD software fuels cars". Design News. Retrieved 2008-03-13.
  5. ^ "Exporting Documents". www.tflex.com. Retrieved 2022-12-09.