Except laser machines with laser class 4
If the Trotec laser plotter is equipped with a hatch, the chassis has an opening through which the laser radiation can exit. Such laser machines thus fall into laser class 4. A similar situation results with Trotec lasers with galvo technology. The laser must be classified into laser class 4 if it doesn't have a corresponding housing. Lasers of the safety class 4 may then only be operated with special protective gear (protective glass, shields, protection goggles).