This is the answer key for MARB task 1, the M3-CRETE gantry frame. It holds
the reference assembled geometry and the placement spec that the MARB grader
scores runs against:
m3_reference_round1.step — the reference assembled STEP (the intended machine).
m3_reference_assembly.yaml — the placement spec: per-part intended pose,
interface gaps, and… See the full description on the dataset page:
https://huggingface.co/datasets/SunnydayTech/marb-m3-crete-answer-key.