A plug is the counter-frame (male). From this, the mold (female) is made. Actually, the lure is literally the 1 on 1 model of the actual model, but modified to make a mold or several partial molds. In doing so, they usually have flanges on them or smart dividers in them. The plug is the basis of the project and it largely determines the quality of the product.
There are different levels of finishing possible that determine the final quality of a plug. From sanded to highly polished.
Nedcam works as standard with the so-called seamless paste system where epoxy paste is used. Alternative pastes are also possible.
After milling, the model is sanded and may or may not be finished with a high-quality coating suitable for making the mold.