Stereo Soldering and Circuit Board Assembly Data

It is first-person video of a person working at a circuit board, recorded from their own point of view with two calibrated cameras and with hand pose and sensor streams alongside. The tasks are the two rows the site’s catalog lists in Electronics Manufacturing & E-Waste. 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 Electronics Manufacturing & E-Waste environment under the Manufacturing & Workshops sector, both listed as Available on request, which the site defines as scoped and recruited to spec when a buyer asks for it. "Circuit board assembly" reads "Place components on the board, seat connectors and secure parts before soldering." and is rated Medium. "Component soldering" reads "Solder components to the board with an iron and solder wire, trim leads and inspect joints." and is rated Hard.

Both list a head-mounted phone or a multiview rig as the capture setup. The first table below reproduces them as the catalog states them. This page names only the tools, components and steps that appear in those rows: a board, components, connectors, an iron, solder wire, leads and joints, and placing, seating, securing, soldering, trimming and inspecting.

The egocentric soldering and PCB rework page covers the soldering rows, "Component soldering" and "Solder through-hole", as first-person capture with ten streams, and the egocentric electronics assembly page covers board, connector, housing and harness rows from the catalog. The stereo electrical installation page covers five electrical rows and lists no board or soldering rows. None of them gives these two rows a stereo and MCAP treatment.

This page is the stereo and MCAP treatment of just "Circuit board assembly" and "Component soldering". It does not cover the through-hole row, which sits in another environment, or the housing and harness rows. The comparison table below sets the pages side by side.

Board work is about the state of a small assembly: which components are placed, which connectors are seated, which joints are made, which leads are trimmed, which joints have been inspected. A stereo pair recovers depth from the calibrated frame pair rather than from a standalone depth sensor, so the board and the tool share a frame with the hands. The site gives no depth accuracy figure and no label for how a joint looks, so whether a joint is resolvable in depth is Not stated.

The site states that small fasteners can fall below a depth sensor’s reliable floor, that hand pose stays valid at that range, and that metric depth on sub-centimetre parts is flagged rather than interpolated. It states no depth floor for board features, leads or joints, so confirm it in the spec. The setting, a real workplace or a staged set, is also agreed in the spec: the site does not say where any batch is captured.

The site describes two stereo setups and does not say which one a board 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 soldering or board assembly 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.

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 board work the site states hand pose, a stereo-derived depth stream, 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.

Hands are the first risk. An iron is held in one hand while the other steadies the board or feeds the wire, and the contact point is often hidden behind the fingers. The visibility flag on each joint is the answer the site gives, and contact events mark when a hand or tool meets an item. A spec can also ask for wrist views, so a grip the head camera loses is still recorded.

Depth is the second. The site says depth degrades on wet and reflective surfaces and masks low-confidence regions with per-frame confidence maps, and an episode is rejected when more than 35 percent of depth pixels in the manipulation region are invalid. The site does not say how depth behaves on a board, a lead or a joint, so this page promises no figure.

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 or an undocumented bystander appears, and a reject log ships with every batch.

A bench or a factory floor can be a shared space, so bystanders matter, and a screen can be in view. 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 site states no contributor safety protocol, no joint-quality criterion, no iron setting and no certification for either row, so this page describes none. Capture at your own facility is listed as not offered.

Off-the-shelf covers what is already in stock: the stereo category lists the stereo datasets and hand-tracking video, and only dataset 06 is stated as MCAP. This page does not claim off-the-shelf coverage of the soldering or board assembly rows. 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 applies to these rows, so ask when you request the quote. Collections are billed per validated hour.

Describe the tool, the board and components, the setting and the steps in order, what counts as one completed step, 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.