Może masz coś tutaj namieszane.

Through mode is an option to set the behavior at the beginning of a cut. You can specify the through power and the open delay time to tell the controller to use a specified amount of power for a specified amount of time before continuing with the normal cutting or engraving operation.

This could be useful if you have a material that requires a bit more power to get started but then can continue at a lower power setting or faster speed once the initial cut has been made.