T-FLEX CAD

Free plan LinuxWindows

What T-FLEX CAD is

T-FLEX CAD is a hybrid computer-aided design product combining 3D modeling with drafting and drawing production for mechanical design. It supports 2D and 3D design, conceptual sketches, reverse engineering, tolerancing inspections, rapid prototyping, and downstream manufacturing. Parametric variables and relationships can propagate changes through designs, associated parts, and their attributes. Assembly tools cover bottom-up and top-down methods, configurations, and simulated motion. Sheet-metal, mold, weldment, piping, cabling, surface-modeling, and assembly tools are included. Express Analysis provides first-pass stress analysis; advanced analysis is a separate product. The software imports and exports many formats, including DWG, DXF, STEP, IGES, Parasolid, ACIS, JT, STL, OBJ, IFC, and files from major CAD systems. It runs on Windows and Linux through Wine. A free Student Edition and 30-day evaluation trial are available, while commercial pricing requires a request.

Who it suits

T-FLEX CAD suits mechanical designers, manufacturers, and teams exchanging data across many CAD formats. Students can use the free edition for noncommercial work, subject to its restrictions.

What it does well

Hybrid 2D and 3D modeling
Assembly, sheet-metal, and surface tools
Broad import and export format support
Parametric relationships update related design elements
.NET API supports add-ons and automation

What to know first

Student files cannot work with commercial T-FLEX CAD
Student edition restricts printing and data exchange
Advanced analysis requires separate T-FLEX Analysis
Commercial pricing is available on request

Plans

Plan	Billed and limits	Price
T-FLEX CAD commercial license	Initial purchase includes a perpetual software license and first-year maintenance subscription; contact a local distributor or Top Systems for price. · Stand-alone or network license · annual maintenance renewal	On request

As tflex.com lists them, read 8 Oct 2026. The maker's own page has the final word.

Verdict

T-FLEX CAD covers mechanical modeling, drafting, assemblies, manufacturing features, and extensive file translation. Its free student edition and trial support evaluation, while commercial use requires a license.

Facts from T-FLEX CAD's own pages

Analysis: Built-in Express Analysis provides a first-pass stress analysis tool, while more advanced capabilities are offered in the separate T-FLEX Analysis product. · tflex.com, 8 Oct 2026
API: T-FLEX Open API is based on .NET and supports custom add-ons and workflow automation using multiple programming languages. · tflex.com, 8 Oct 2026
Assemblies: Assembly tools support bottom-up and top-down design, product configurations, and simulated motion and mechanical interaction. · tflex.com, 8 Oct 2026
Assembly design: Yes · tflex.com, 23 Sept 2026
Company: Top Systems says it develops and distributes T-FLEX products mainly for mechanical manufacturing and is based in Moscow, Russia. · tflex.com, 8 Oct 2026
Design uses: The maker lists 2D/3D design, drafting, conceptual sketching, reverse engineering, tolerancing inspections, rapid prototyping, and downstream manufacturing among its uses. · tflex.com, 8 Oct 2026
File import and export: Import: DWG, DXF, STEP, IGES, Parasolid, ACIS, SolidWorks, Inventor, NX, Creo, CATIA, Solid Edge, Rhino, Revit, IFC, JT, FBX, STL, OBJ, PLY, 3MF, GLTF/GLB, and others. Export: DWG, DXF, PDF, STEP, IGES, Parasolid, ACIS, JT, STL, OBJ, PLY, VRML, X3D, IFC, 3MF, and others. · tflex.com, 23 Sept 2026
Founded: Top Systems was formed in 1989 and officially registered in 1992, according to its company history. · tflex.com, 8 Oct 2026
Free plan: Yes · tflex.com, 23 Sept 2026
Headquarters: Moscow, Russia · tflex.com, 28 Sept 2026
Interoperability: The maker lists translators for formats and systems including Siemens NX, CATIA, Creo, Inventor, SolidWorks, STEP, IGES, DWG, DXF, and PDF. · tflex.com, 8 Oct 2026
Licensing: The maker describes stand-alone licenses for individuals or small offices and network licenses for organizations; new commercial licenses include first-year maintenance and support. · tflex.com, 8 Oct 2026
Manufacturing features: The product includes sheet-metal, mold, weldment, piping, and cabling design tools. · tflex.com, 8 Oct 2026
Modeling method: hybrid · tflex.com, 23 Sept 2026
Parametric design: Variables and relationships can drive changes across a design, including associated parts and their attributes. · tflex.com, 8 Oct 2026
Platform: The maker lists Windows system requirements and says T-FLEX CAD supports Windows 11 and Astra Linux using Wine. · tflex.com, 8 Oct 2026
Purpose: T-FLEX CAD combines 3D modeling with drafting and drawing production for mechanical design. · tflex.com, 8 Oct 2026
Sheet-metal tools: Yes · tflex.com, 23 Sept 2026
Student edition: The free Student Edition is nearly functionally identical to the professional product but is prohibited for commercial use. · tflex.com, 8 Oct 2026
Student limitations: Student files are incompatible with commercial T-FLEX CAD, and the edition limits printing, import/export, BOM, DOCs integration, and other functions. · tflex.com, 8 Oct 2026
Supported platforms: Windows; Linux (using Wine) · tflex.com, 23 Sept 2026
Surface modeling: Yes · tflex.com, 23 Sept 2026
Trial: A full-featured trial is available for up to 30 days, is stand-alone, and is intended for evaluation rather than commercial use. · tflex.com, 8 Oct 2026