K3-Tent: Software for Tensile Membrane Structure Design & Engineering

K3-Tent

Tensile membrane structures design software

K3-Tent Software

K3-Tent is a software suite intended for designing tent structures. The software speeds up design documentation and improves the preparation of manufacturing orders for any tent structure. K3-Tent provides designers with clear, effective tools for working with complex surfaces. K3-Tent significantly reduces the time for form-finding, visualization, cutting line marking, and piece unfolding. The K3-Tent suite is a further development of the FABRIC CAD System.

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Examples of shade sail models

K3-Tent software allows you to create various shapes limited only by your imagination.

Example of a complex hyperbolic paraboloid tensile structure designed in K3-Tent software

K3-Tent software. Screenshorts. Tensile Membrane Structures.

Tensile fabric shade sail structure modeled with K3-Tent architecture software

What К3-Tent software provides

K3-Tent is a complete software solution for engineers and architects working with tensile membrane structures. Whether you need to design a small shade sail or a complex stadium roof, K3-Tent provides specialized tools for every stage of the project: from initial form-finding to precise cutting pattern generation.

Form-finding

Finding the equilibrium shape under given boundary conditions.The algorithms used in the K3-Tent software allow for finding the surface shape without bubbles or wrinkles.

Cutting pattern generation and flattening for a fabric membrane in K3-Tent

Cutting line

Tracing future cutting lines. Three methods for constructing the line: the shortest line, intersection with a vertical plane, or intersection with an arbitrary plane.

Creating patterns

Creating a pattern taking into account the seam (weld) width. Generating a coordinate grid for transferring the pattern to the fabric.

Stitching patterns

Creating a stitching scheme

K3-Tent software. Forces. Tensile Membrane Structures.

Overall stress heat map

K3-Tent software automatically calculates and visualizes a heat map of the overall stress distribution on the fabric membrane, and also calculates the reaction forces at the membrane attachment points.

Surface curvature analysis

You can analyze the surface shape using contour lines (isolines) or a heat map of the normal deviation from the vertical axis.

Customer Projects

Certain photos of our customers’ projects. All projects are designed in the K3-Tent Software.

Tensile structure shade sail project designed with K3-Tent software for a commercial courtyard.

A project of a tent structure canopy, developed using K3-Tent software, for a playground.

A project of a tent structure canopy, developed using K3-Tent software, for a bus stop.

Prices

We offer flexible licensing to suit your project needs: perpetual licenses for continuous use and short-term 1-month licenses for specific projects. Contact us for a personalized quote tailored to your requirements.

The cost of a 1-month license is 150 USDT. When using this license, a constant internet connection is required.

The cost of a perpetual, unlimited license is 3600 USDT. For this license, we provide a software protection key, and in this case, a constant internet connection is not required.

Currently, as of March 4, 2026, due to the complex international situation, payment for the K3-Tent software is accepted in cryptocurrency. Our crypto wallet is located on the reliable Bybit.com exchange.
Payment is made in stablecoins USDT or USDC. Upon your request, we will send you instructions and payment details

To make a purchase, please contact us by email at sale@k3info.ru.

FAQ

Frequently Asked Questions about K3-Tent Software.

1. What types of shade sails can I model in the software?

Examples of surfaces are shown in the screenshots above.
The K3-Tent software simulates the shape of a "soap film" surface for a specific frame. The K3-Tent software simulates the shape of a soap film surface for a specific frame when it is lifted from a soap solution. The frame can consist of rigid or stretchable (rubber) ribs.
You change the shape of the frame, and K3-Tent automatically creates the optimal surface without bubbles or wrinkles.

2. Does K3-Tent calculate wind, snow, and rain loads?

K3-Tent does not account for the effects of wind, rain, or snow. K3-Tent calculates the stresses in the fabric resulting from pre-tension and the weight of the fabric itself. It also calculates the reaction forces at the tent attachment points.

3. Can you manufacture a tensile structure according to our request?

Our company does not create commercial projects. We develop the K3-Tent software.

4. Can you provide ready-made tensile structure projects?

All the projects we have are created by our users. We cannot provide working projects without the consent of our users. Each project is created individually for a specific location.

5. Can I create a steel structure in K3-Tent?

A steel structure can be created in K3-Tent. K3-Tent includes a full-featured 3D editor. However, most users prefer to use their preferred software for steel structure design. The model is then imported into K3-Tent. Based on the imported structure, K3-Tent finds the optimal surface shape. K3-Tent supports 70 import formats.

6. How do I transfer the patterns created in K3-Tent to real fabric?

All patterns can be exported in DXF format. The work then continues with these DXF files.
There are several ways to transfer the pattern to the fabric:

Loading the DXF contours of the patterns into a CNC plotter with a cutting knife and a marking module.
Printing the pattern contour on a roll printer and then tracing the contour onto the PVC fabric.
K3-Tent automatically creates a coordinate grid under the pattern contour. The grid spacing is specified when creating the pattern. This coordinate grid can be used to transfer the pattern onto the PVC fabric.

7. How can I learn to work with the K3-Tent software?

The software comes with a "User Guide" in PDF format. There are also links to YouTube and Rutube channels with tutorial videos. We are also ready to record custom training videos upon your request.

8. How is user technical support provided?

Technical support is provided via email and the Telegram messenger.
For 12 months after purchasing a perpetual license, technical support is free of charge. Technical support is also provided free of charge with the purchase of a monthly license..

9. What are the system requirements for running K3-Tent?

This is one of the most frequent questions asked when purchasing K3-Tent. To avoid unpleasant situations related to unsuitable hardware, here is the full list of requirements:

Pay special attention to the graphics card. We recommend using NVIDIA video adapters. Each new version of K3-Tent increasingly utilizes hardware capabilities.
The amount of RAM determines the performance of the operating system in general and the K3-Tent software in particular.
The screen size and resolution determine the quality and quantity of simultaneously visible lines.
Recommended graphics adapter specifications for K3-Tent: A discrete graphics card (NVIDIA GeForce, ATI RADEON) supporting OpenGL version 4.2 or higher, with at least 1 GB of dedicated memory.
Please note: Integrated Intel HD graphics cards do not meet the recommended system requirements and do not provide full system functionality.
If K3-Tent is installed on a laptop with two graphics cards, ensure the program runs using the discrete graphics card.

Recommended system requirements:

Processor 3-GHz ;
Computer memory 16 GB;
Graphics card NVIDIA with 1 Gb memory or more;
Monitor diagonal 20" and more. Screen resolution 1600х1200;
Two-button mouse with a scrolling wheel;
Free 3 Gb of hard disk space;
Supported operating systems Windows 7, 8, 10, 11

10. How can I purchase a license for the K3-Tent software?

To purchase a license, you need to send a request to the email address sale@k3info.ru. Our managers will contact you, clarify the scope of delivery, and explain the next steps.
Currently, as of March 4, 2026, due to the complex international situation, payment for the K3-Tent software is accepted in cryptocurrency. Our crypto wallet is located on the reliable Bybit.com exchange.
Payment is made in stablecoins USDT or USDC via various networks. Upon your request, we will send you instructions and payment details

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About K3-Tent

K3-Tent is CAD/CAM software for tensile structures design. K3-Tent is aimed at speeding up the project documentation development and enhancing the quality of free-form tent structures.