2.4 Drilling
When using the model for drilling exercises, several factors should be considered: Despite the Lay-brick filament’s better resistance to melting from thermal friction than other thermoplastics, minor melting and agglomeration still occurs during drilling. To avoid this, we recommend only using sharp-burrs, which cause less melting of the model than diamond burrs.
Further, suction and irrigation should be avoided as the suction easily clogs due to the clustering of tiny fragments of plastic. Instead, we recommend that trainees either turn the model upside down or use compressed air to remove plastic fragments from the model during training.