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CLAUDE.md

Context for continuing work on this dataset. Captures the design decisions and conventions worked out so far.

What this dataset is

Inova-Mk1-Database is the canonical graph dataset of Inova Mk1 SLS printer entities — jobs, print sessions, print profiles, and STL objects. Each entity is its own HuggingFace config; relationships are encoded as ID references in FK-style fields, not via an explicit edges.parquet.

Domain-specific datasets (Inova-Mk1-ASTM, future Inova-Mk1-Telemetry) reference rows here by ID and may embed frozen snapshots of the referenced state when standalone consumption matters more than join-freshness.

Ecosystem

  • Upstream raw: ppak10/SLS4All-Backup — full printer backup (PrintProfiles/, PrintSessions/, Jobs/, Objects/, etc.). This dataset is a curated, structured slice of that.
  • Downstream domain datasets:
    • ppak10/Inova-Mk1-ASTM — ASTM mechanical-test specimens (D256/D638/D790) + Instron/TestWorks tensile test results. Rows embed printer-state snapshots (e.g. full print profile inline) so ML consumers don't need to cross-join.
    • ppak10/Inova-Mk1-Telemetry (planned).
  • Pattern reference: ppak10/RocketReviews uses the same per-entity-config layout (one JSONL per entity, FK fields, scripts/{entity}/01_*.py). Match that pattern when adding configs here.

Architectural decisions

  • Per-entity HF configs over nodes+edges parquet. Each entity (jobs, sessions, etc.) is its own config_name in the README YAML pointing to its own data/{entity}.jsonl. Consumers do load_dataset("ppak10/Inova-Mk1-Database", "jobs"). The graph is implicit in FK fields, documented in README "Used By" prose.
  • No git submodules between HF dataset repos. HF's load_dataset doesn't follow submodules, so consumers gain nothing; the dependency direction is also wrong (Database is the leaf, not the parent). The umbrella role is filled by the recorder repo (Agentic-Additive-Manufacturing-Process-Optimization), which contains this repo, ASTM, and Telemetry as submodules under datasets/ (all update = none — init explicitly); the datasets stay siblings of each other there.
  • Snapshot vs reference is decided per consumer. This dataset stores references (IDs). Domain datasets choose whether to embed snapshots inline. Default for ML-facing domain datasets: embed the full profile so rows are self-contained.

Directory layout

source/             # raw printer files, mirroring SLS4All app subdirs
  Jobs/             # .s4a archives (= zip of STLs + .metadata.json)
  PrintSessions/    # per-run session JSONs
  PrintProfiles/    # material/energy profile JSONs
  Objects/          # STL library (Objects/ASTM/ + supporting)
scripts/{entity}/   # numbered ETL: 01_extract.py, 02_*.py, ...
data/{entity}.jsonl # HF-loadable artifact, one row per record

Scaffold: uv (pyproject.toml, .python-version = 3.10), stdlib only (zipfile, json, re).

File format notes

  • .s4a is just a zip. Contents: the STLs referenced by the job + a .metadata.json (~22 KB) embedding the full job state. Inspect with unzip -p file.s4a .metadata.json | jq.
  • .metadata.json PrintProfile field is already an ID reference, not a snapshot — i.e. AutomaticJob.PrintProfile = {"Id": "..."}. The full profile data lives only in the standalone source/PrintProfiles/*.json files.
  • AutomaticJob.NestingState.PrintProfile can be a different profile from AutomaticJob.PrintProfile — the nesting was computed against one profile, but a different profile may be assigned at print time. Sessions confirm this: the 2026-05-25 .s4a job is assigned 52715389 (1 Second Heat Time), but session 1 ran with 25682cd2 (100% Recycled), matching the nesting profile. Worth surfacing both if it ever matters.

Row shape — jobs config

{
  "source_file": "D256 and D638 2026_05_25.s4a",
  "print_date": "2026-05-25",
  "job_name": "D256 and D638",
  "print_profile_id": "52715389-d580-4be9-9194-ed300bdf911b",
  "objects": [
    {
      "object_file_id": "19b91ed5-d98b-4dee-929b-955b3d757ffc",
      "name": "d256_impact_specimen.STL",
      "hash": "AB07BE60702ECFC8F495612DF56280DB63050E72",
      "instance_count": 8,
      "scale": 100
    }
  ],
  "metadata": { "...full .metadata.json..." }
}

Conventions: light envelope (filename-derived fields at top level), id references surfaced at top level, full raw metadata retained for lossless replay.

IMPORTANT gotcha — object_file_id is per-job, not stable

AutomaticJob.Objects[] and AutomaticJob.ObjectFiles[] are linked only by Name. The same STL file gets a different ObjectFile.Id in each job's metadata — confirmed: d256_impact_specimen.STL is 19b91ed5-… in the 05-25 job and 692f3c49-… in the 05-30 job. The content hash (SHA1) is the stable identity. When building the objects config, key the node by hash, not by object_file_id. object_file_id is useful only as a per-job handle.

Current state

  • jobs config — implemented, 21 rows (scripts/jobs/01_extract.pydata/jobs.jsonl). Covers every 2026-dated print from 2026-05-25 through 2026-07-12 (including non-ASTM Hex Coasters / Nameplates / DragonBurner Cowl side prints).
  • Two dates carry two jobs each: 2026-06-27 (D790 and D638 and other objects + Hex Coasters and Nameplates and Benchies) and 2026-06-29 (Debug Run + Nameplate). Downstream lookups need to key by job_id or filter by object hash — a naive date-key lookup will pick whichever job happened to be extracted last.

Planned configs

Config Source Likely PK FK refs
sessions source/PrintSessions/*.json Id (session UUID) job_id, print_profile_id
profiles source/PrintProfiles/*.json Id (profile UUID)
objects source/Objects/**/*.STL content hash (SHA1)

Scope note

Current source/ holds all 2026-dated prints from SLS4All-Backup: 21 jobs / 42 sessions / 15 profiles. That's every print the backup has for 2026, including the non-ASTM side jobs (Hex Coasters, Nameplates, DragonBurner Cowl, Bucky). 2025-dated jobs (Bookmarks, Trophy Prints, T-Rex, etc.) are intentionally out of scope — they predate the current ASTM/Telemetry data-collection period.

Loose STL geometry lives in source/Objects/ASTM/ and is still ASTM-only (4 files); the STLs used by each print job are embedded inside the corresponding .s4a archive, so the jobs config is self-contained. If a future objects config wants to enumerate all STLs, it will need to either extract from the .s4a files or import the broader SLS4All-Backup/Objects/ tree.

Backfill trail (chronological):

  • 2026-07-11: imported 06-09 Cards + 06-13 Recycled Powder → ASTM batches F ← 06-13, G ← 06-09.
  • 2026-07-12: full 2026 sweep + backup refresh through 07-12 → ASTM batches E D790 ← 06-07, H ← 06-24, I ← 06-25, J/J_MB ← 06-27 (the D790 and D638 and other objects job, disambiguated from same-day Hex Coasters via STL-content match in the ASTM _lib).

Adding a new config — recipe

  1. mkdir scripts/{entity} and write 01_extract.py (stdlib-only, mirror scripts/jobs/01_extract.py layout: ROOT/SOURCE_DIR/OUTPUT_FILE constants, build_row(), main()).
  2. Row shape: top-level filename-derived envelope fields + FK ids + nested metadata blob. Surface IDs at top level for HF-side filtering; keep the raw blob for lossless replay.
  3. Run script → data/{entity}.jsonl.
  4. Update README.md configs: block: add config_name: {entity} pointing to the new JSONL.
  5. Add the entity row to the README's Configs table.