Industry Summary Articles

Hexagon’s Production Software Division has announced the latest release of NCSIMUL, strengthening its integrated approach to NC program verification, simulation, and optimisation with a new Selective Simulation capability.
NCSIMUL brings G-code verification, CNC simulation, and optimisation together in one digital twin environment. Manufacturers use it to check NC programs, improve machining efficiency, and reduce the need to prove out risky or time-consuming work on valuable machine tools.
As programming and machining workflows accelerate, verification helps manufacturers increase speed without adding avoidable production risk. This is especially important in high-value machining environments, where a single program can involve many hours of machine time, multiple operations, and critical stages that need careful review. 
Selective Simulation gives programmers a faster way to navigate long, complex programs. The patent-pending capability uses GPU-accelerated Rest Stock Previews to generate intermediate stock models during the NC decoding phase, creating earlier views of how the part is developing through the program.
In a customer trial by an American athletic footwear corporation based on a long-cycle mould application, a program with a 47-hour machine cycle previously required 48 minutes of sequential simulation before the programmer could inspect the required operation. Using Selective Simulation, Rest Stock Previews were generated in under two minutes.
Programmers can use these previews to inspect the part state at different stages, identify visible issues earlier, and move more directly to operations that need closer attention. Rest Stock Previews are intended to support earlier review and iteration. Full NC code simulation, including complete collision detection and material removal accuracy, remains the standard for final sign-off before a program is released to the machine.
“Simulation accuracy has always been central to NCSIMUL, and that remains unchanged,” said Jasper Sanders, Product Manager for NCSIMUL, Hexagon’s Production Software division. “Selective Simulation gives programmers a more flexible way to work through complex programs. They can gain useful visibility much earlier, focus their attention on the operations that matter most, and still rely on the full NCSIMUL simulation engine for final verification.”
The capability strengthens NCSIMUL’s wider role in helping manufacturers protect productivity before production begins. By combining simulation and optimisation in one environment, it supports the confidence needed to release NC programs and the efficiency required to keep advanced machining workflows moving.
“Manufacturers are under pressure to make better use of time, skills, and machine capacity,” said Peter Ameloot, Senior Director EMEA North, Hexagon’s Production Software Division. “That pressure is felt strongly at the verification stage, where teams need confidence before a program reaches the machine, but cannot afford unnecessary delay. With this latest release, NCSIMUL helps engineers move through long, complex programs more intelligently, focusing their attention where it matters most.”
The latest release of NCSIMUL is available from 19 May 2026. Full system requirements are available from Hexagon.

To view the original press release, please click here.

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