AutoPanelSizer – optimized cutting layouts for panel-sizing saws



  • reduces production times and manufacturing costs
  • ensures efficient material utilization
  • fulfills destacking and production sequences
  • supports stress release cut, head cut, recut, package cut
  • can be integrated into existing applications via XML interface


The AutoPanelSizer ­software determines optimized cutting layouts for the ­production of rectangular parts from rectangular raw material and minimizes waste, production times and manufacturing costs.

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The AutoPanelSizer software determines optimized cutting layouts for the production of rectangular parts from rectangular raw material, thus minimizing waste, production times, and manufacturing costs. AutoPanelSizer generates cutting layouts that can be produced by straight, continuous guillotine cuts. This makes the software suitable for common cutting technologies applied in wood machining and the glass, metal, and plastics processing industries.

Cutting layouts in seconds

AutoPanelSizer can compute layouts with up to three cutting stages plus head cuts and considers different constraints imposed by the cutting process and the material. Available remnants and various sizes of raw sheets can be included in the optimization. The computation of a typically sized cutting layout takes only a few seconds to a couple of minutes and can be further reduced using multiple processor cores.

Cutting layout with optional parts plus head cut.
© Fraunhofer SCAI
For this cutting layout AutoPanelSizer uses optional parts (dark blue) and three cutting stages plus head cut (main plan in orange).

Reduced production costs – increased yield

AutoPanelSizer considers production times and manufacturing costs and weighs time-consuming operations, such as head cuts, recuts, destacking, or remnant storage, against a more efficient material utilization. Production time is reduced by sawing several sheets at the same time in a package cut. Tensions in the material can lead to bent cut edges. To prevent this, AutoPanelSizer can insert stress release cuts for better cut quality.

Destacking restrictions of finished cut parts can be taken into account via part groups, as can requested production sequences, even across multiple materials. AutoPanelSizer supports a maximum allowed overproduction that can be set per part: a few additional parts may be placed on the cutting layout to improve the yield.

Cutting layout with destacking restrictions
© Fraunhofer SCAI
AutoPanelSizer computes this cutting layout in 0.3 seconds. It has been taken into account that only 3 destacking stations are available. Parts with the same color must be destacked together.

Integration into existing software

AutoPanelSizer is distributed as a pure geometric optimization engine without a user interface and is designed for integration into other applications via an XML interface, such as plant control systems, MES, or ERP systems. The software runs on Microsoft Windows.

AutoPanelSizer is aimed at

  • software solution providers who want to integrate an optimization into their application, and
  • larger companies willing to program a connection to their IT systems or have it programmed.

Fraunhofer SCAI constantly improves and enhances AutoPanelSizer based on the latest research results. AutoPanelSizer benefits from the institute's long-standing and broad algorithmic expertise on optimization.



  • Consideration of production times and manufacturing costs
  • Balancing time-consuming processes against yield improvement
  • Optimization across multiple materials
  • Adjustable runtime and optimization quality
  • Multithreaded computation


  • Multiple sizes of raw sheets
  • Individual availability
  • Marking as remnants
  • Consideration of grain


  • Required and optional demand
  • Consideration of grain
  • Part groups
    • for specifying a production sequence
    • to model destacking restrictions

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  • Generation of guillotine cutting layouts
  • Limitation on the number of cutting stages
  • Minimum and maximum lengths of cuts and saw feeds
    • for strips, parts, identical strips and end sections
    • for mapping restrictions caused by machine widths, transport devices, suction cups, grippers, pressure beams, etc.
  • Setting the feed direction
  • Horizontal and vertical kerf
  • Trimming at the sheet edges
    • individually adjustable for each side
    • Trims for head cuts and recuts

Head cuts

  • Sizes of the sectional plans
  • Limitation on the number of head sections
  • Weighing against yield


  • Minimum and maximum size
  • Weighing against yield and optional parts
  • Separate settings for head and main plans
  • Preferred use of existing remnants

Third cutting stage

  • Recuts on individual parts or cutting of multiple parts
  • Maximum and minimum length of offcuts
  • Restriction of recuts to one side of the part (length or width)
  • Weighing against yield

Package cuts

  • Maximum number of sheets
  • Weighing against yield

Stress release cuts

  • Minimum distance between stress release cuts
  • Minimum length of stress release cuts
  • Stress release cut depending on part size


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