fix: more prime positions cause inside of hollow prime tower is quite big (CURA-2325)
fix: more prime positions cause inside of hollow prime tower is quite big (CURA-2325)

Ultimaker/CuraEngine,ROBO3D/CuraEngine,ROBO3D/CuraEngine,alephobjects/CuraEngine,Ultimaker/CuraEngine,alephobjects/CuraEngine,alephobjects/CuraEngine,ROBO3D/CuraEngine