How are the holes made in the abdomen for robotic prostectomy surgery, by the robotic machine or by the doctor using s scalpel?

Scalpel. The approximately 1/2 inch incisions for robotic-assisted laparoscopic radical prostatectomy (RALRP) are made by scalpel. The "holes" into the abdomen are created by manually inserting sharp-tipped trocars through the incisions. The DaVinci Robot is a set of articulating arms that hold and handle the various instruments passed through the trocars and controlled by the surgeon who sits at a console.