solidcraft-delivery-gate ยท diff
git:20261030.73e6ec0 to git:20261101.b674e1d
25 added, 0 removed. Audit A to A.
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name: solidcraft-delivery-gate
description: Use before telling the user that a SolidCraft model, export or drawing is finished, ready to print or ready to send: checks that final files are fresh, non-empty and match the last measured design, re-checks holes, pockets and gears against the reference values, and separates verified from unverified claims.
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# Delivery gate
An export that succeeded only proves a file was written. Check the final files, not the working design, before saying "done".
(Idea source: the final-verification, artifact-inspection and evidence-ledger gates of capwitf/mechanical-cad-skills, MIT. Rewritten for SolidCraft; no text copied.)
## Checks on the final files
| Check | How |
|---|---|
| Exists and is fresh | every promised file is in the model's folder and newer than the last design change; no leftovers from an earlier version (new versions get a new name, e.g. `_v2`) |
| Non-empty | size > 0; STL: triangle count > 0 and a bounding box; DXF: entity count by type and layer names; PDF: page count; STEP: header and entity count |
| Matches the design | bounding box and volume of the export (re-open the STEP in SolidCraft, or parse the STL/DXF) agree with the last `measure`, in mm |
| Final look | `screenshot` of the model (iso, plus top or underside when features hide there) and send it to the user |
| Source can regenerate | the saved `.solidcraft` or the parameter list is next to the exports |
Limits to remember:
- Reading a STEP as text proves a STEP container with entities, not valid solid geometry. Re-open it to confirm.
- STL triangle count and bounding box do not prove a watertight, printable mesh.
- DXF entity counts do not prove dimensions or layers are right; compare with the flat size you computed.
- A PDF or screenshot never proves the native design is healthy.
## Extra checks for holes, pockets and gears
When the final design has screw holes, tapped holes, counterbores, slots, pockets or spur gears, re-check them on the final geometry against the values in `solidcraft-hole-fastener-rules`:
- smallest hole edge distance, web between holes, wall, and remaining floor under pockets and counterbores (measured from the model, a section or a top-view screenshot);
- hole type per hole (clearance, counterbore or tapped) and, for tapped holes, whether the model carries the thread or only the tap drill;
- for a gear: single solid, bounding box equal to the tip diameter, bore diameter, face width.
A value measured on the final design is **Verified**. A value taken from the build parameters is **Inferred**. A value with no known process or load behind its limit is **Unverified**: say which starting value was used and that it still needs confirming.
+ ## Process limits: where to look
+ This skill holds no design-for-manufacturing numbers of its own. Take the process from the design lock (see `solidcraft-requirements-and-sanity`), load the skills for it, and check the final geometry against what they say. Do not rely on memory of their values.
+
+ | Process or feature | Load |
+ |---|---|
+ | FDM print | `solidcraft-3d-print-dfm` (walls, overhang, bridges, clearances, orientation, bed; `references/process-limits.md` for published limits) |
+ | Bent sheet metal, building it | `solidcraft-sheet-metal` (rule, bend radius, relief, flat size, DXF) |
+ | Flat-pack sheet metal | `solidcraft-sheet-metal-flatpack` (tabs, bend slits, perforation budget, declared simplifications) |
+ | Sheet metal or CNC manufacturability, or a DXF going to a shop | `solidcraft-dfm-review` (evidence per feature; SendCutSend per-SKU limits) |
+ | Holes, slots, pockets, edge distance, web, wall (any process) | `solidcraft-hole-fastener-rules` |
+ | Spur gears | `solidcraft-hole-fastener-rules`, section 3 |
+ | Real screws, nuts, bearings, standoffs, motors | `solidcraft-step-parts` (catalogue dimensions instead of guessed ones) |
+ | Several parts, instances, static clearances | `solidcraft-assemblies` |
+ | Joints, motion, closed loops, degrees of freedom | `solidcraft-mechanisms`, plus the verification sweep in `solidcraft-assemblies` |
+ | Exact STEP comparison, parameter ranges, regression tests | `solidcraft-checking` |
+ | A drawing or dimensioned sheet is a deliverable | `solidcraft-engineering-drawing` (read-back checklist) |
+ | Built from a drawing under time pressure, or the build crashed or hung | `solidcraft-speed-modeling-lessons` |
+ | Process or material still unknown | `solidcraft-requirements-and-sanity`; until it is answered, those rows stay Unverified |
+
+ Filling gaps between skills:
+ 1. Check every applicable row of the table, not only the first skill that matches. A printed part with screw holes needs both `solidcraft-3d-print-dfm` and `solidcraft-hole-fastener-rules`; a laser-cut part with screw holes needs `solidcraft-dfm-review` and `solidcraft-hole-fastener-rules`.
+ 2. If the process skill has no value for a feature (for example hole edge distance in a flat-pack plate), take it from the next skill in the table and say where it came from.
+ 3. If two skills give different limits for the same feature, use the stricter one and name both.
+ 4. If no skill has a value, mark the claim Unverified and list the missing value under open risks. Do not invent a limit, and do not edit another skill from here: report the gap so it can be added there.
+
## Optional manifest
For files that go to other people, write `<model>_manifest.json` next to them: file name, size, modified time, SHA-256, the source design, tool versions, checks actually run, and the three claim lists below. Only record checks that really ran.
## Report shape
Keep it short:
1. Final files (names, in the model's folder).
2. **Verified**: checked directly on the final files.
3. **Inferred**: likely from the build logic, not measured.
4. **Unverified**: not checked or blocked, with the next smallest action.
5. Open risks.
Do not write "all good" unless every required check passed.
## When a check fails
Name the check, classify the cause (stale file, export failed, blank result, wrong format, geometry, missing tool), fix the design rather than the preview, re-export, and re-check from the new file.