Stereo E-Waste Disassembly and Sorting Data

It is first-person video of a person taking electronic devices apart for recycling: unscrewing and prying open devices, removing boards and batteries and sorting materials into bins. It is recorded from their own point of view with two calibrated cameras, with hand pose and sensor streams alongside. The task is the one row 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 this row. 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.

One, in the Electronics Manufacturing & E-Waste environment of the Manufacturing & Workshops sector. It is named "E-waste disassembly and sorting", rated Medium: "Unscrew and pry open devices, remove boards and batteries and sort materials into bins." It lists a head-mounted phone or a multiview rig as the capture setup, and its status is Available on request.

The site defines Available on request as scoped and recruited to spec when a buyer asks for it, so this is not a row where recording is already running, and this page claims no volume, hours or delivered stereo footage. It names only the tools and steps that appear in the row: unscrewing, prying open devices, removing boards, removing batteries and sorting materials into bins. The first table below reproduces the row as the catalog states it, beside the three other rows in the same environment.

The egocentric e-waste disassembly page covers this same catalog row as egocentric capture, with delivery in RLDS, LeRobot or WebDataset, and stereo and MCAP are not its focus. The stereo soldering and circuit board assembly page gives stereo and MCAP treatment to the two other rows in the environment, "Circuit board assembly" and "Component soldering", and does not cover the e-waste row.

This page gives the e-waste row its own stereo and MCAP treatment, stream map and failure modes. The comparison table below sets the pages side by side.

A teardown is a tool worked into a seam, a casing opened, a board lifted out, a battery lifted out and a piece dropped into a bin. A stereo pair recovers depth from the calibrated frame pair rather than from a standalone depth sensor, so the device, the tool, the part and the hands share a frame. The site also states that depth degrades on wet and reflective surfaces and handles that with per-frame confidence maps.

The site gives no depth accuracy figure for teardown, so whether a seam, a screw head, a connector or a battery edge is resolvable in depth is Not stated, and whether a given casing or board is reflective enough to lower confidence is also Not stated. A spec should check both 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 an e-waste 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 an e-waste 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, which matters when one hand steadies a casing and the other works a tool.

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 teardown 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 casing, a lifted board or a tool can hide the fingers that hold a part. The visibility flag on each joint is the answer the site gives, contact events mark when a hand meets a tool or a component, masks are recorded per frame, and a spec can ask for wrist views so a grip the head camera loses is still recorded.

Sequence and definition are the second. The row names unscrewing, prying open, removing boards, removing batteries and sorting into bins, and the catalog does not split it into stages, so any split is a spec choice. The spec decides how each step becomes an action segment, and a spec that says only “take the device apart” gives one long segment. Device types, tools, material categories, the contents of each bin, recovery rates, material yields, device counts, recycler names and throughput are Not stated and are set in the spec or not claimed on this page. Force and tactile readings are not among the listed streams of standard capture.

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.

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. The anonymization record ships with the data. An undocumented bystander is a stated reject criterion, and anything beyond the general rule is settled in the spec before capture. Screens matter here because devices being taken apart may have one, and the general rule already covers them.

The row names batteries as something to remove, and that is all the site states about them. Battery handling, battery safety, hazardous materials, protective equipment, environmental and compliance claims are Not stated, and this page makes none. Raise any of them in the spec.

The site lists no off-the-shelf e-waste disassembly dataset, and the only stereo head rig it states as shipping as MCAP is dataset 06, which is not an e-waste set. So stereo e-waste disassembly in MCAP is custom collection: custom collection at scale through a network of thousands of capture providers, for a consistent, recurring data flow to labs. The off-the-shelf stereo and hand-tracking video page shows what the rig delivers, and the custom order applies it to your task.

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 row is Available on request and the site does not say which speed applies to a stereo e-waste order, 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 closed device, the unscrewing, the opening, the removal of the board and the battery, and the sorting into bins. Name the device categories, the tools you expect to see, the bins and what each one holds, 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.