Stereo Table Saw and Wood Cutting Data

It is first-person video of a person cutting wood in a workshop: measuring and marking panels, cutting them on the table saw, shaping curves with a jigsaw, and dimensioning and cutting timber. It is recorded from their own point of view with two calibrated cameras, with hand pose and sensor streams alongside. The tasks are the two rows the site’s catalog lists for it. Stereo describes the capture, and MCAP describes the container. They are separate choices.

The site does not state that stereo is already running on these rows. The catalog lists a head-mounted phone or a multiview rig as the capture setup, and a stereo pair is a capture choice agreed in the skill spec and confirmed on a Spec Pilot. The data is human capture by paid, consented contributors, not robot or teleoperation data. Firsthand is not affiliated with Foxglove or the MCAP maintainers.

Two, both in the Carpentry & Furniture Workshop environment of the Manufacturing & Workshops sector, which the catalog describes as a joinery and furniture workshop with saws, sanders and finishing stations. The first is named "Cut and shape wood panels using a table saw and jigsaw" and reads "Measure and mark panels, cut them on the table saw and shape curves with a jigsaw." The second is named "Wood Cutting" and reads "Dimensioning and cutting timber with commercial saws and cutting equipment."

Both rows are rated Hard, list a head-mounted phone or a multiview rig as the capture setup, and are listed as Active collection. The site says nothing further about what that status means in volume, hours or delivered stereo footage, so this page claims none, and what applies to a given order is confirmed when you request the quote. This page names only the tools and steps that appear in the rows: the table saw, the jigsaw, cutting and shaping wood panels, and cutting timber. The first table below reproduces both rows as the catalog states them.

No claim is made. The "Wood Cutting" row mentions commercial saws and cutting equipment, but the site states no sawmill, industrial production line or mill capability, so this page makes none either. The row sits in a joinery and furniture workshop. Which saws and which equipment a given order covers is Not stated and is agreed in the spec, not assumed.

The stereo carpentry and framing page treats five rows across two environments as one family: three construction-site rows, a circular saw lumber row, and these two workshop cutting rows, in stereo and MCAP. The egocentric woodworking and carpentry page treats the eleven rows of the workshop environment as egocentric capture, these two among them, and points to the stereo carpentry page for stereo.

This page narrows to the two workshop cutting rows. It gives the table saw, jigsaw and timber cutting steps their own stereo and MCAP treatment, stream map and failure modes. The site does not list an off-the-shelf table saw or wood cutting dataset, so this work is custom collection. The comparison table below sets the pages side by side.

A cut is defined by a line on a surface and a tool moving along it, with the hands holding and guiding the panel. A stereo pair recovers depth from the calibrated frame pair rather than from a standalone depth sensor, so the panel, the surface under the tool and the hands share a frame.

The site gives no depth accuracy figure and no label for wood species, panel dimensions, a cut-line deviation or a tolerance, so whether those are resolvable in depth is Not stated. How stereo depth behaves on pale wood grain, sawdust, reflective saw surfaces or a moving tool is Not stated, and a spec should check it on a Spec Pilot. Capture at your own facility is listed as not offered.

The site describes two stereo setups and does not say which one a wood cutting order uses. The hard-environments stack is a global-shutter 4K/60 head camera with a 120° lens, two 1080p/60 wrist cameras, a depth sensor at 848×480 and 30 fps, and 200 Hz 6-DoF IMUs. The off-the-shelf stereo head rig, dataset 06, is dual fisheye cameras at 1080p per eye, a 62 mm baseline, per-unit calibration, a 9-axis IMU and hand-tracking output.

Which rig, resolution and streams a wood cutting order uses is Not stated on the site, and the third table below sets what is stated beside what is not. Intrinsics and extrinsics are re-solved at the start and end of every session, and streams are hardware-triggered onto one clock with a 2.0 ms cross-stream ceiling. The catalog states that a multiview rig adds synchronized third-person angles when the spec asks for them, and wrist cameras give a closer view of the hands.

MCAP is an open source container file format for multimodal log data, supporting multiple channels of timestamped pre-serialized data. It is serialization-agnostic, so messages can be Protobuf, DDS (CDR), ROS, JSON and more. Its design is row-oriented and append-only, it stores schemas alongside the data, and it offers an optional index plus optional LZ4 or Zstandard chunk compression.

Reader and writer libraries exist for C++, Go, Python, Rust, Swift and TypeScript, and the mcap CLI can inspect, merge and split files. The foxglove/mcap repository is MIT-licensed; that is the MCAP project’s licence, not the licence of a Firsthand delivery. The MCAP hub page and the glossary entry cover the format in full.

Firsthand offers MCAP delivery, and dataset 06 is stated as shipping as MCAP. For cutting work the site states hand pose, a stereo-derived depth stream with confidence maps, IMU, contact events, action segments and per-frame instance masks elsewhere. What it does not state is which of those are channels in an MCAP file, how they are named, what encoding they use or at what rate.

No topic name, message schema or rate is stated on this page, and none should be assumed. Name the streams that matter in the skill spec and confirm them on a Spec Pilot batch. The fourth table below sets each stream beside what the site states about it.

Occlusion is the first risk. A panel, a saw or a jigsaw can hide the fingers that hold it, and the cut line can leave the view as the panel moves. The visibility flag on each joint is the answer the site gives, contact events mark when a hand or tool meets the panel, masks are recorded per frame, and a spec can ask for wrist views so a grip the head camera loses is still recorded.

Sequence is the second. Measuring and marking, cutting on the table saw and shaping with a jigsaw are separate steps, so the spec decides how each is split into action segments. A spec that says only “cut the wood” gives one long segment. Lighting, glare, dust, vibration and motion blur are Not stated for this task and are raised in the spec. Force and tactile readings are not among the listed streams of standard capture, and no label is stated for cut-line deviation or tolerance.

Calibration is the third, because stereo depth is only as good as the rectification behind it: calibration is measured at the start and end of every session under a 0.28 px RMS gate. An episode is also rejected when the manipulated object is out of frame for more than 15 percent of it, when more than 35 percent of depth pixels in the manipulation region are invalid, or when an undocumented bystander appears, and a reject log ships with every batch.

Nothing beyond the rows. Safety certifications, protective equipment, blade guards, saw models, cut tolerances, cycle times and throughput are Not stated for these rows, and this page makes no such claim. What a contributor may wear, do or show is agreed in the spec.

For every delivered episode the site states that faces, plates and screens are blurred irreversibly, and that footage that cannot be de-identified is discarded. An undocumented bystander is a stated reject criterion. How other people in a shared workshop are handled beyond that general rule is Not stated and is settled in the spec before capture.

The site lists no off-the-shelf table saw or wood cutting dataset, so this work is custom collection. The only stereo head rig the site states as shipping as MCAP is dataset 06, and this page does not claim off-the-shelf stereo coverage of wood cutting. Custom collection covers the rest: custom collection at scale through a network of thousands of capture providers, for a consistent, recurring data flow to labs.

Where coverage is deep, the median time from signed spec to first validated batch is a median of 48 hours; where it is thin, turnaround runs three to four weeks. The site does not say which speed applies to a stereo wood cutting order, and the catalog lists both rows as Active collection without defining it further, so the timeline is quoted against your spec. Collections are billed per validated hour, and rejected episodes and recaptures are never billed.

Describe the tasks and where each starts and ends: the measuring and marking, the table saw cut, the jigsaw shaping and the timber dimensioning steps, the start state of each workpiece, what counts as a reject, and the variation your pipeline is missing. Then name the streams you want in the file, the topic naming and message encoding your reader expects, whether calibration ships inside the file or beside it, and whether MCAP is the only delivery or sits beside RLDS, LeRobot or WebDataset.

Most programs begin with a Spec Pilot, a small first batch that proves the spec and accept criteria on real footage before you scale. The fifth table below shows what each spec element decides.