An actuation assembly comprising: a drive mechanism including an array of magnetic members moveable along an axis, wherein the drive mechanism includes an armature having a plurality of armature windings , each including a first portion and a second portion ; and a gear train including an input connected to the drive mechanism and an output , arranged to drive a component in use; wherein the drive mechanism causes the input to move in response to generating an electromagnetic field, generated by passing a current through the armature windings of the armature that interacts with at least one of the magnetic members of the array of magnetic members ; wherein the gear train is an epicyclic gear system including a sun gear , a carrier coupled to a plurality of planetary gears , and a ring gear , the sun gear defining the input, and the carrier or the ring gear defining the output, wherein the drive mechanism is a linear motor defining an infinite stroke length, wherein the array of magnetic members are carried in a rubber belt or another elastic polymeric material, or coupled in a chain to form a a loop configuration (L1) about first and second pulleys , which rotate about two parallel axes that are perpendicular to the axis (A1) along which the array of magnet members move, wherein the first pulley is coupled to a first spur gear and the second pulley is coupled to a second spur gear , the first and second spur gears driving the sun gear through a belt drive ; wherein the loop configuration (L1) at least partially surrounds and houses the carrier in a plane parallel to the axis (A1) along which the array of magnetic members move and passes between first and second portions of the armature windings . a drive mechanism including an array of magnetic members moveable along an axis, wherein the drive mechanism includes an armature having a plurality of armature windings , each including a first portion and a second portion ; and a gear train including an input connected to the drive mechanism and an output , arranged to drive a component in use; wherein the drive mechanism causes the input to move in response to generating an electromagnetic field, generated by passing a current through the armature windings of the armature that interacts with at least one of the magnetic members of the array of magnetic members ; wherein the gear train is an epicyclic gear system including a sun gear , a carrier coupled to a plurality of planetary gears , and a ring gear , the sun gear defining the input, and the carrier or the ring gear defining the output, wherein the drive mechanism is a linear motor defining an infinite stroke length, wherein the array of magnetic members are carried in a rubber belt or another elastic polymeric material, or coupled in a chain to form a a loop configuration (L1) about first and second pulleys , which rotate about two parallel axes that are perpendicular to the axis (A1) along which the array of magnet members move, wherein the first pulley is coupled to a first spur gear and the second pulley is coupled to a second spur gear , the first and second spur gears driving the sun gear through a belt drive ; wherein the loop configuration (L1) at least partially surrounds and houses the carrier in a plane parallel to the axis (A1) along which the array of magnetic members move and passes between first and second portions of the armature windings . <EOS>