{
  "repo": "orcahand/orcahand_hardware",
  "commit": "7545769364b3c582f93c42936d2abe7e74afb741",
  "source": "orca_v1/ORCA_Assembly/ORCA_v1.step",
  "source_url": "https://github.com/orcahand/orcahand_hardware/blob/7545769364b3c582f93c42936d2abe7e74afb741/orca_v1/ORCA_Assembly/ORCA_v1.step",
  "license": "CC BY 4.0",
  "triangles": 472853,
  "bytes": 15647536,
  "sha256": "14aee80d29cfe7e2408027ccb0766af633ff5388dd040529daab7c1712dbc366",
  "changes": "Original STEP geometry and assembled placements. Axis conversion Z-up to Y-up; functional grouping; neutral display materials. Small and structural meshes capped at 1600 triangles after seam welding; servo cases and forearm cover retain source tessellation. Table-tennis prop and unclassified small hardware omitted. No invented internals or articulation.",
  "runtime_motion": "hand-hardware-motion.js adds a joint hierarchy without altering the source GLB. Finger and wrist pivots are derived from opposing bearing centres in the STEP assembly. The assembly pose is the reference pose; movement excursions are illustrative, not calibrated hardware limits. Servo spools run as an independent inspection mode, with no asserted tendon-to-finger gearing. Covers and skins retain their link attachments when exploded. Tendon drive view adds original Korthos schematic cable geometry with one illustrative spool-to-index-MCP channel. This overlay is not part of the source CAD, does not claim the actual motor assignment or path, and is not a calibrated transmission simulation."
}