The Levitational Locomotive is a block added by Thaumic Tinkerer. When one or more Levitational Locomotives are placed between two Levitational Locomotive Relays that are in a straight line, the Levitational Locomotives will move back and forth one block carrying the block that is on top.
You created a new contraption to move things back and forth. Two relays placed in a straight line will project a force beam between them. A visual effect will be shown if particles are enabled.
Place a Levitator inside that projected beam. The Levitator will be moved back and forth inside that beam, carrying the block on top of it.