A named fabrication task list
Layout, cutting, fitting, welding, grinding and weld inspection are different sequences, so a spec names each one.
Task family

Requirements
Layout, cutting, fitting, welding, grinding and weld inspection are different sequences, so a spec names each one.
A head-mounted view keeps both hands, the tool and the joint in view through the whole sequence.
3D hand pose with per-joint visibility carries the finger detail of clamping parts, holding a torch or guiding a grinder.
Frame-accurate action segments mark where fitting ends and welding begins, aligned to video and depth.
A perpetual, buyer-owned commercial license backed by a documented consent chain.
Why it matters
Egocentric welding and metal fabrication video data is real-world, first-person video of a person working metal: marking and laying out stock, cutting and bending it, fitting and clamping parts, welding the joints, and grinding, cleaning and inspecting the result. It is recorded from the operator viewpoint, with depth, 3D hand pose, contact events and frame-accurate action segments aligned on one hardware clock.
Fabrication is a chain of dependent steps, not a single grasp: a person measures, marks, cuts, fits, clamps, tacks and then welds. The manufacturing workflow page covers production and assembly procedures and the woodworking page covers timber work.
Setting
The site states welding and metal fabrication in its task catalog, in two places. A Heavy Industry & Fabrication environment lists a Metal fabrication row and a Welding row. A separate Metal Fabrication & Welding Workshop environment lists eleven rows covering layout, pipe cutting and fitting, welding, grinding and deburring, weld inspection and one knife-forging row.
Every row uses the same capture mode, a head-mounted phone or a multiview rig. Skill ratings run from Medium to Hard, and none is rated Easy.
Welding
Three rows name welding directly, all rated Hard. One sets up the welder, tacks and runs beads along metal joints and cleans the welds. One welds metal parts with MIG, TIG or stick, controlling travel speed and bead shape. One clamps frame parts square, tacks with the MIG welder and runs full welds along the joints.
The rows name MIG, TIG and stick, and no other process. The site does not say which process a given recording uses, what metals or alloys are welded, how thick the material is, or what torch or machine is in use. Those are agreed in the written spec.
Layout, cutting and fitting
Four Medium rows cover the work before the weld. One measures sheet metal, scribes cut lines with a square and marks bend and hole positions. One transfers dimensions from drawings to metal stock with scribe, square and punch. Two cover pipe: one measures and marks steel pipe, cuts it on the bandsaw and fits sections in clamps, and one cuts pipe to length, bevels the ends and fits and clamps sections ready for welding.
A fabrication row rated Hard lays out, cuts, forms and welds sheet and structural metal into finished parts, and the heavy industry row cuts, bends, drills and welds metal parts into assemblies using shop machinery.
Grinding and inspection
Two Medium rows cover finishing: one grinds weld seams flush with an angle grinder and finishes edges with files, and one grinds welds and cut edges smooth and removes burrs with a grinder and hand files. A third Medium row inspects welds for defects, grinds and cleans seams and marks parts for rework. The visual inspection page lists weld inspection too, as one of several inspection tasks.
Environments
The catalog places the workshop rows in its Metal Fabrication & Welding Workshop environment, with a metal shop with welding bays, grinders, cutting and fitting benches as the example. The two broader rows sit in Heavy Industry & Fabrication.
Ten of the workshop rows are listed as Ready to deploy, which means contributors and site access are set up and capture starts once a spec is signed. The knife-forging row and the two heavy industry rows are listed as Available on request, so their timeline is quoted against your spec. The site names no shop, brand or worker, and does not state capture at a customer own facility; environment, access and schedule are agreed in the spec.
Capture setup
A head-mounted phone records the first-person view of real work on site, and a multiview rig adds synchronized third-person angles when the spec asks for them. A wrist-mounted camera is available alongside the head camera for close-range detail.
The site does not state a camera count, resolution or frame rate for welding, and it does not say how a recording handles the bright light of an arc, a helmet or a shield. Exposure handling, depth behaviour on metal and the number of workers per site are Not stated, so raise them in the spec.
Streams and labels
Each episode follows the Firsthand episode schema: ten streams synced under 2 ms, with head and wrist RGB, depth, 3D hand pose with per-joint visibility, contact and grasp events, and frame-accurate action segments. For fabrication, hand pose tracks the clamp, the tack and the grind, contact events mark when fingers meet a tool or part, and action segments mark each step.
Object labels use the terms your spec sets. Welding processes per task, metals or alloys, material thickness, machine or torch models, number of sites or workers, arc or exposure handling, throughput, force or tactile data and a task-completion label are Not stated. They are defined in the spec if your policy needs them, and no safety, protective equipment or compliance claim is made.
Delivery
Delivery formats are RLDS, LeRobot and WebDataset, plus HDF5, zarr and Rerun .rrd. The format table below sets each against what its official documentation states. Welding episodes use the same schema as every other Firsthand collection, so a loader that reads another Firsthand dataset reads this one without changes.
Every batch is validated against signed accept criteria before it ships, with a reject log, and delivery is rolling, per validated batch.
Privacy
Every episode links to a signed contributor release through a documented consent chain, and the consent record is part of the delivery. Faces, plates and screens are detected and irreversibly blurred at ingest, and a reviewer confirms the result before anything ships. The anonymization record is delivered with the data.
The site does not state a separate rule for other text in a shop, such as drawings, labels or machine displays, so this page does not claim it is blurred. Raise it in the spec if it matters.
Fast · on demand
Where coverage is already deep, the first validated batch lands in a median of 48 hours from signed spec. Thin environments typically take three to four weeks, because vetting operators there is the bottleneck, and we quote that up front.
On-demand top-ups run against the same spec and accept criteria after each training run. The site does not state a batch size or later-batch turnaround, so those are quoted against your spec.
The spec
You describe the parts, joints and sequence your policy needs. We turn that into a written spec covering tasks, environments, capture tier, annotation depth and accept criteria, then quote reach, timeline and price before any capture begins.
A Spec Pilot, a small and fast first batch, can prove the spec and accept criteria before you scale. Billing is per validated hour, a reject log ships with every batch, rejected items are recaptured at our cost, and every collection ships under a perpetual, buyer-owned commercial license.
At a glance
Every collection runs through the same seven-stage end-to-end custom collection pipeline. End-to-end custom data collection is a managed service that takes an AI data need from problem to owned dataset in a single accountable pipeline.
What the site states
| Where it appears | What the site states | Used on this page as |
|---|---|---|
| Task catalog, Metal Fabrication & Welding Workshop environment | Eleven rows: layout, pipe cutting and fitting, welding, grinding and deburring, weld inspection, one knife-forging row | The stated workshop tasks |
| Task catalog, Heavy Industry & Fabrication environment | One Metal fabrication row and one Welding row, both rated Hard | Two further stated rows |
| Visual inspection task data page | Weld inspection listed among inspection tasks | Neighbouring work, one row |
Catalog rows
| Task family | Catalog task and description | Skill | Status |
|---|---|---|---|
| Fabrication, heavy industry | Metal fabrication: cut, bend, drill and weld metal parts into assemblies using shop machinery | Hard | Available on request |
| Welding, heavy industry | Welding: set up the welder, tack and run beads along metal joints and clean the welds | Hard | Available on request |
| Welding | Welding: weld metal parts with MIG, TIG or stick, controlling travel speed and bead shape | Hard | Ready to deploy |
| Welding | Weld and join metal frames using a MIG welder and clamps: clamp frame parts square, tack with the MIG welder and run full welds along the joints | Hard | Ready to deploy |
| Fabrication | Metal Fabrication: lay out, cut, form and weld sheet and structural metal into finished parts | Hard | Ready to deploy |
| Layout | Mark and lay out sheet metal using a scribe and square: measure sheet metal, scribe cut lines with a square and mark bend and hole positions | Medium | Ready to deploy |
| Layout | Part Layout & Marking: transfer dimensions from drawings to metal stock with scribe, square and punch | Medium | Ready to deploy |
| Pipe | Cut and fit steel pipe using a bandsaw and pipe clamps: measure and mark steel pipe, cut it on the bandsaw and fit sections in clamps | Medium | Ready to deploy |
| Pipe | Pipe Cutting & Fitting: cut pipe to length, bevel the ends and fit and clamp sections ready for welding | Medium | Ready to deploy |
| Grinding | Grind and deburr welded seams using an angle grinder and files: grind weld seams flush and finish edges with files | Medium | Ready to deploy |
| Grinding | Grinding & Deburring: grind welds and cut edges smooth and remove burrs with grinder and hand files | Medium | Ready to deploy |
| Inspection | Weld Inspection & Cleanup: inspect welds for defects, grind and clean seams and mark parts for rework | Medium | Ready to deploy |
| Forging | Knifemaking / Bladesmithing: forging, grinding, heat treating and finishing blades in a metal workshop | Hard | Available on request |
Streams and labels
| Item | Status on this site | Why it matters for welding and metal fabrication |
|---|---|---|
| Head and wrist RGB, depth | Stated; ten streams synced under 2 ms | Keeps joint, tool and hands on one timeline |
| 3D hand pose, per-joint visibility | Stated | Carries the grip on a clamp, a torch or a grinder |
| Contact and grasp events | Stated | Marks when fingers meet a tool or part |
| Action segments | Stated; frame-accurate | Separates layout, fitting, welding and grinding |
| Welding processes per task, metals or alloys, material thickness | Not stated; rows name MIG, TIG and stick only | Defined in the spec |
| Machine or torch models, number of sites or workers | Not stated | Defined in the spec |
| Arc or exposure handling, depth behaviour on metal | Not stated | Raised in the spec before capture |
| Throughput, force or tactile data, task-completion label | Not stated | Defined in the spec if needed |
Formats
| Format | What the official documentation states | Used for here |
|---|---|---|
| RLDS | A dataset is retrieved as episodes, and each episode holds a dataset of steps (RLDS repository README) | Episode-based training loaders |
| LeRobot | LeRobotDataset v3.0 is a standardized format for robot learning data, including multi-camera video, with many episodes stored per Parquet or MP4 file (LeRobot documentation) | LeRobot dataset format and tooling |
| WebDataset | Tar files in which files that belong together share a basename, split into numbered shards (WebDataset README) | Sharded streaming for large training runs |
| HDF5 and zarr | Stated by Firsthand only | Array storage for custom pipelines |
| Rerun .rrd | Stated by Firsthand only | Multi-stream synchronized playback for review |
FAQ
Sources
Tell us the parts, joints and sequence your policy needs to handle. We will quote reach, timeline, and price against a written spec, with a first validated batch in a median of 48 hours where coverage is deep.