Cutting Problems in CNC Hot Wire Cutting

Waves, rough surfaces, wire getting stuck – almost all cutting problems have a clear cause and a simple solution.

Poor cut quality is not inevitable. Almost all cutting problems in CNC hot wire cutting have a known cause – and a simple solution. The key is working systematically: check one variable at a time until the problem is found. This knowledge from real production helps.

Further Topics

Cutting Speed

Many customers compare machines by their maximum travel speed. In hot wire cutting this is largely irrelevant. What really matters: coordinating speed and temperature correctly.

Wire Temperature

A frequent question from beginners: what temperature should I set the wire to? The honest answer: there is no fixed value – always set practically at the material.

Avoid Waves

Waves on the cut surface are not random. The cause is almost always the same – and the solution simpler than you think.

Poor Surfaces

Rough surfaces and thread pulling in hot wire cutting almost always have a clear cause. EPS and XPS have different typical problems.

Wire Gets Stuck

The hot wire gets stuck when it hits something it cannot melt away. The most common problem is foreign bodies in the material.