Construction Sequence — TBS-001¶
1. Purpose¶
This report is the build order of record for TBS-001 — the sequence in which the camera is assembled inside the container, why that order is forced, and the gate that must be met before each phase begins. The install is geometry-first: the large fixed masses (the IBC totes and their frame) go in first and set the datum everything else is measured from; the precision optical system goes in last, once the real, as-built space is known. Fabrication and ordering for subsequent phases of the install can only be performed one the geometry is established.
The sequence is validated by a phased 3D construction model (§8) — one scene per phase, with a click-through that reveals each step in order — so the order can be walked before any components, steel is cut, etc.
2. Build Overview¶
| Phase | Name | Goal | To Be Completed |
|---|---|---|---|
| 1 | Geometry set-out | Install the fixed masses that fix the datum | IBC frame + totes plumbed and square; hinge panel hung |
| 2 | Re-measure | Capture the as-built space before committing hard structure | Measured clearances reconciled against the mode; refactor the design based on availbale space |
| 3 | Framing | Fit the tray, cantilevers, plumbing, film-plane beams, walkway | Walkway + tray in; perimeter structure loaded |
| 4 | Electrical | Panels, lights, and all wiring runs | Circuits terminated + tested (Blue / Brown / Black) |
| 5 | Photo system | Film plane, pinhole mechanism, light trap | Camera light-tight and operable |
3. Sequencing Principles¶
- Geometry-first. The IBC stack + frame are the heaviest, least-movable elements and define the corridor and walkway datums; everything downstream references them.
- Measure twice (Phase 2). Container internal dimensions vary unit-to-unit; the hard structure is cut to the as-built space, not the nominal model.
- Work from the walls inward, optics last. Structure and services are installed while the tray zone is open; the film plane / pinhole / light trap go in last to stay clean and true.
- No trapped work. Each step leaves access for the next (e.g. plumb before the walkway caps the corridor). Dependency conflicts surface in the §8 click-through, not on site.
4. Phase 1 — Geometry Set-Out¶
Goal: install the fixed masses that establish the camera's internal datum.
| # | Step | Depends on | Status |
|---|---|---|---|
| 1.1 | Install the IBC frame posts (upright skeleton + feet) + plumbing-panel backing | — | ☐ |
| 1.2 | Install 2× IBC totes on the pinhole wall (near column) — dropped into the post skeleton | 1.1 | ☐ |
| 1.3 | Install the panel equipment (pumps/filters/valves) + plumb the IBC corridor (corridor lines only — sump + supports → 3.2) + run the filter skid's blue recycle and gray waste corridor lines to the IBC panel + run the purple Cct-C corridor pump wiring to the pinhole wall (EP drop connected in 4.3) | 1.2 | ☐ |
| 1.4 | Install Fan A (exhaust) + run its Cct-A cable along the pinhole-wall trunk and down to the EP drop (EP itself lands in Phase 4) — before the far IBCs bury it | 1.2 | ☐ |
| 1.5 | Install 2× IBC totes on the far wall (far column), then fit the frame rails + retaining bars to trap all totes | 1.4 | ☐ |
| 1.6 | Install the hinge panel (light-trap door — excluding the light-trap drum) | 1.2 | ☐ |
Exit gate: frame square, totes restrained, IBC plumbing pressure-checked.
5. Phase 2 — Re-measure¶
Goal: capture the actual space remaining after the fixed masses are in, before any hard structure is committed.
| # | Step | Depends on | Status |
|---|---|---|---|
| 2.1 | Re-measure the actual space left — reconcile against the model; note deltas | Phase 1 complete | ☐ |
Exit gate: as-built clearances confirmed; designs refined; any cut-lists adjusted to the measured space.
6. Phase 3 — Framing¶
Goal: fit the load-bearing perimeter structure, the processing tray, the remaining plumbing, the film-plane support, and the walkway.
| # | Step | Depends on | Status |
|---|---|---|---|
| 3.1 | Install the pinhole-wall ply backing (mounts the filter skid; shown as a semi-transparent, plywood-colored backdrop for the plumbing build — ghosts like all prior geometry from Phase 4 on) | Phase 2 | ☐ |
| 3.2 | Install cantilevers on the far + right walls | Phase 2 | ☐ |
| 3.3 | Install cantilevers on the near wall | 3.2 | ☐ |
| 3.4 | Lay the under-grate ribbons (sump line + skid ribbon legs — tray-sump→P-04 suction, DV-02 waste, P-02→ACC-02 — + pipe support beams) and install the pinhole filter skid (F-1..F-3 + P-04/SV-02/DV-02 + ACC-02 + skid-side plumbing; mounts to the 3.1 backing; connects to the recycle→IBC-3 + waste returns from 1.3) — span the space, so after the beams and both cantilever sets, before the grate; Note: Before the pipes can be glued, the walkway has to be test-fitted to locate the holes for the pipe bump-through. | 3.1, 3.2, 3.3 | ☐ |
| 3.5 | Extend plumbing to the pinhole-wall panel | 3.4 | ☐ |
| 3.6 | Install the processing tray | 3.2 | ☐ |
| 3.7 | Install the film-plane beams + combined corner plates (FP ↔ right-walkway) | 3.2 | ☐ |
| 3.8 | Install the left cantilevers | 3.4 | ☐ |
| 3.9 | Install the walkway (grating on all cantilevers) | 3.3, 3.4, 3.7, 3.8 | ☐ |
Exit gate: walkway decked, tray sealed, perimeter proof-loaded.
7. Phase 4 — Electrical¶
Goal: install the power panels, lighting, and all wiring runs.
| # | Step | Depends on | Status |
|---|---|---|---|
| 4.1 | Mount the external power panel (PV + E-stop) | Phase 3 | ☐ |
| 4.2 | Install the interior electrical panel + batteries | 4.1 | ☐ |
| 4.3 | Connect the Cct-C corridor wiring to the EP (the corridor run was pre-installed to the pinhole wall in 1.3 — this closes the EP drop) | 4.2 | ☐ |
| 4.4 | Hang the lights | Phase 3 | ☐ |
| 4.5 | Run / wire the electrical paths — IBC pumps, filter, lights, fans, etc. (circuits Blue / Brown / Black) | 4.2, 4.3, 4.4 | ☐ |
Exit gate: every circuit terminated, continuity + insulation tested, E-stops verified.
8. Phase 5 — Photo System¶
Goal: install the precision optical elements last, into the known as-built space.
| # | Step | Depends on | Status |
|---|---|---|---|
| 5.1 | Install the pinhole mechanism (plate + aperture) | Phase 3 | ☐ |
| 5.2 | Install the film plane + carriages | Phase 3 (beams), 5.1 | ☐ |
| 5.3 | Install the light trap (drum into the hinge panel) | Phase 1 (panel), 5.2 | ☐ |
| 5.4 | Install the spray bar (over the processing tray) | Phase 3 (tray) | ☐ |
Exit gate: plane travels through its full tilt/swing envelope; spray bar moveemnt is free; camera confirmed light-tight.
9. Construction Model (3D, phased)¶
The build order is verified by a dedicated phased 3D model — the same component builders as the Overview 3D model, staged by install order:
- One scene per phase (Phase 1 … Phase 5) — the model shown at the end of that phase.
- Click-to-build within a scene — a Dynamic Component reveals each step's geometry in order on click, so the assembly can be watched building up and the sequence checked for trapped work / access conflicts before the real build.
With the Interact tool, each phase scene opens showing only its first step; each click reveals the
next in install order (drag to orbit, scroll to zoom). Model-generation internals are documented in
component-dependency-map.md §3.1 (the construction model row).