Optimized markers for leather hides

AutoNester-L creates automatically optimized markers for leather hides. The software nests the pieces optimally in a very short time, minimizes wasted material, while adhering to various constraints. AutoNester-L is used in the leather and car manufacturing industries.

Product Description

AutoNester-L is a software package for automatic marker making on leather hides. For other materials than leather, we refer to our software package AutoNester-T.

AutoNester-L is widely used in the leather and car manufacturing industry. It is able to nest any set of pieces within a very short time in an optimal way, minimizing wasted material, while taking into account various types of constraints. The efficiency of the markers achieved by AutoNester-L is competitive to experienced human nesters.

The AutoNester-L software is organized as a Dynamic Link Library (DLL) to be used as a developer's tool kit. Developers of CAD-systems can integrate AutoNester-L into their software.

We also offer the creation of custom-made standalone applications for the end user which can be used to create markers from special data formats.

AutoNester-L is constantly improved and more and more kinds of constraints are incorporated. Currently, the following constraints are supported:

  • up to 16 different quality levels of the leather
  • quality zones on the pieces and the surfaces
  • holes in the surface
  • free rotation of the pieces

For a full description of the software's capabilities please have a look into the documentation.

AutoNester-T is coded in a platform-independent way and runs under Windows 95/98/ME/NT/2000/XP/Vista and Windows 7. Other platforms are supported on request.


AutoNester-L combines many of the latest optimization techniques in order to achieve the best results in a very short time. We use local search algorithms based on new variants of Simulated Annealing, multiply iterated greedy strategies, paired with efficient heuristics, pattern recognition techniques and fast Minkowski sum calculators. In the local search algorithms, we use fully dynamic statistical cooling schedules and dynamic parameter choice.

Image of a leather hide, a data set of the furniture industry, and corresponding marker

© Photo Fraunhofer SCAI
© Photo Fraunhofer SCAI
© Photo Fraunhofer SCAI



The picture shows a leather hide. Holes are marked black, minor quality of the leather is marked by red shades.









This pictures shows a data set of the furniture industry (upholstered furniture). Parts with such forms have to be cut from the leather hide.







This picture shows the corresponding marker for the upholstered furniture. It was computed by AuoNester-L. 30 parts were cut. The efficiency is 83%. The computing time on a standard PC with a 3 GHz processor was one minute.

A second example

© Photo Fraunhofer SCAI

Marker for upholstered furniture, 55 parts, efficiency 84%, computing time on a 3 GHz processor: 2 minutes


The AutoNester-L software package for automatic marker making on leather hides can be used via an application programming interface. The software package addresses developers of CAD-systems for the leather manufacturing industry. CAD-system developers can easily integrate AutoNester-L into their own CAD-software.

The nesting software runs on the latest Windows operating systems.


Product Sheet

The product sheet illustrates the purpose and the main features of the software on two pages. This is recommended for the first reading.