Abstract: Configurable ovoid units, earth-boring tools including configurable ovoid units, and related methods are disclosed. An earth-boring tool may include a body including at least one blade. The earth-boring tool may further include a cutting element secured to the at least one blade and including at least one sensor configured to sense at least one condition of the cutting element. Moreover, the earth-boring tool may include at least one configurable ovoid unit disposed at least partially within the at least one blade and comprising an adjustable ovoid head. Additionally, the earth-boring tool may include a control module disposed within the earth-boring drilling tool. The control module may be configured to receive sensor data from the at least one sensor, and to convey at least one signal to the at least one ovoid unit for configuring the at least one ovoid unit in response to the sensor data.

Abstract: Passively adjustable elements for earth-boring tools may include a housing and an element located at least partially within the housing. A piston may be secured to the element, the piston configured to drive extension and retraction of the element relative to the housing. A first flow path may extend through the piston, through a first flow controller supported by the piston to permit fluid to flow at a first rate during retraction of the element. A second flow path may extend at least partially through the piston, through a second flow controller supported by the piston, to permit fluid to flow at a second, faster rate during extension of the element. A biasing element may bias the piston toward an extended position. An outer diameter of the piston may be less than or at least substantially equal to an outer diameter of the element.