Relational reformulation of Newtonian two-body mechanics using the Machwerk TRD formal core. Focus on structural invariants, energy relations, and stability analysis in classical dynamics. Computational testbed for relational modeling in established physical systems.

MACHWERK is a formally closed meta-framework for theoretical physics defining relational projection, admissibility domains, and injectivity loss (black boundaries). It is not an alternative physical model or theory of nature, but a formal tool operating one level above established physics.