CAD and Fabrication Workflow

Route a part, assembly, drawing, robot description, simulation model, or fabrication handoff through explicit units, editable source, geometry/semantic validation, visual inspection, and a separate physical-action authority gate. Source: pinned earthtojake/text-to-cad skill family; brain/workflows.json

Contract

The input must identify the intended artifact, units, critical dimensions or constraints, assumptions, and whether the job ends at a digital artifact, vendor preflight, upload, or physical execution. The workflow routes by deliverable rather than loading all CAD skills into every context.

Stage Output
Frame Frozen brief, units, tolerances, intended use, and authority ceiling
Route Smallest required skill subset and dependency preflight
Build Editable source plus primary artifact; STEP-first unless the format contract says otherwise
Validate Machine checks for geometry, frames, collisions, semantics, slicing, or vendor constraints
Inspect CAD Viewer snapshots/live review and explicit unresolved assumptions
Handoff Digital deliverable, conservative vendor report, or dry-run physical plan
Record Artifact hashes, commands, proof, limitations, and reusable corrections

Authority boundary

Generating and inspecting local files is allowed within the task's write scope. Network downloads, vendor uploads, purchases, machine motion, and printer execution are separate effects. bambu-labs stays dry-run unless the user authorizes the exact target; upload requires --execute, and print start additionally requires --confirm-start-print. A plausible render is not manufacturing proof.

Completion proof

Completion requires the editable source, primary output, deterministic validation results, visual inspection, units/assumptions, and hashes or stable paths. Robot work also needs topology/frame/limits/collision semantics; fabrication work needs the named material/profile/process constraints. If dependencies are missing, the workflow returns a specific preflight blocker rather than claiming a partial artifact is ready to manufacture.


Timeline