New docs/crane-workshop-tours.md: a 5 t single-girder EOT crane over the
whole production compartment (stops at the warehouse fire wall), a
machine door and crane-served workshop/machine bay at the ramp end, and
a glazed ground-level visitor corridor along the car-park elevation with
stations in process order, its own air and acoustic glazing so tours
need no PPE. Covers what each changes in the shell (crane-ready frame,
hook height under the 7.0 m eave, no full-height cross walls in the
crane zone, room lids and crane hatches), safety, costs and open
decisions.
Propagated: construction RFQ (crane-ready frame, new section 1c, machine
door, accessible 1:12 entrance now required), scale zone table (+210 to
280 m2, total ~1,400 to 2,000 m2), facility security, worker safety,
roadmap items 9 and 15, total investment added-scope table, README.
The project has a standing style rule against em dashes that was missed
when these docs were written. This removes the 42 occurrences where the
substitution is mechanical and cannot change meaning:
- table cells using an em dash as a placeholder, now a hyphen
- em dashes immediately followed by a conjunction or subordinator
(but, and, or, so, though, while, which, where, because, since),
where a comma is simply correct
115 remain. Those join independent clauses, where a comma would create a
splice and a colon often reads wrong, so each needs a judgement call
rather than a pattern. A blanket regex over them was attempted and
reverted: it produced double colons and broken sentences.
A four-agent review audited arithmetic, cross-document consistency,
epistemic honesty and style. It found substantially more than the
manual pass in the previous commit. Errors that changed conclusions,
not decimals:
Arithmetic
- production-timeline: the headline lead times did not reconcile with
the stage table on the same page. Launch is 22-49 days (was 21-39),
mature 11.5-22 (was 14-20), repress 6.5-11.5. Including gates,
launch is 6-17 weeks, not 8-14.
- Consequence: at 17 weeks the launch configuration is at parity with
EU/US plants, not ahead of them. The page now compares quote to
quote rather than a stage sum to a quoted lead time, and says so.
- The galvanics turnaround saving is 1.5-5 weeks, not 3-5.
- scale.md Duplex capacity 300-600k/yr did not reproduce from its own
stated basis; corrected to 175-540k. production-timeline disagreed
with scale.md on the same fleet; both now agree.
- "300 units is under an hour of pressing" was out by an order of
magnitude on the semi-auto line: 5-8 hours.
- project-timeline carried two totals for the same quantity. Now
27-33 months throughout, with the Gantt's two ordering breaks fixed.
- scale.md: 300 kWp covers 28-45% of consumption, not 20-35%; roof PV
stated as both 150-200 and 247 kWp for the same roof; parking canopy
dimensions and PV disagreed with the RFQ.
- RFQ: fire tank stated 200 m3 where both its geometry (254 m3) and
its own mass (250 t) say 250. Drainage now gives total sealed area
66%, not the 46% paving figure, since that is what attenuation needs.
- Galvanics payback used only the top of the saving range: 1-5 years,
not 1-4.
Inference marked as inference
- The 22,000 THB stamper figure is an invoice RESIDUAL. It carries
lacquer cutting, test pressings, setup and margin, so it is an upper
bound on the stamper component, not a measurement. Everything derived
from it now says so, and a line-itemised invoice is the top question.
- The saving was also benchmarked against the wrong supplier: CNX buys
from Stamper Discs, not a Thai reseller. Stated as 175-665 USD until
that quote exists.
- The stamper-bottleneck hypothesis now names its alternatives. Jacket
print runs would produce the same symptom and would constrain CNX
equally, which would remove the competitive read entirely.
- Competitor capacity relabelled as nameplate times an assumed OEE,
with the assumed shift pattern stated; all rows on one 300-day basis.
- The fixed/variable decomposition keeps the shape and drops the point
estimates: the solve point inside the flat 1000-3000 tier is
arbitrary and moves the fixed component by nearly half.
- "Nobody in Thailand plates" reduced to "we have found no evidence",
with a desk check named as the action.
- Cut the USD 450-700k valuation of a competitor's presses entirely.
It extrapolated a semi-auto quote onto a different machine, ignored
the used market, and supported no decision.
- The collaboration payback divided capex by revenue where the same
page uses contribution elsewhere: 5-10 years, not 1-3.
Missing caveats added
- No financing is committed or modelled anywhere in this repo;
project-timeline previously asserted money was not a constraint.
- Leasing cannot pull the launch forward on its own, since the press
chain governs and construction has float against it.
- The whole competitive analysis is one buyer, one plant, one
afternoon, and the primary evidence is not archived in the repo.
- ResurRec is a competitor and may decline to buy from a new entrant.
The parametric model (docs/cnx_vinyl_parametric.FCStd) is now tracked. It
is the spreadsheet-driven Arch/BIM rebuild that supersedes the hard-coded
massing in factory_building_rough.FCStd, which is kept because the current
renders still come from it.
Site works. The two gates are consolidated into a single 10.0 m bi-parting
opening, with the wall plugged where the second one stood. The guard house
sits beside it clear of the entry corridor, and was raised out of the
ground - it had been modelled sunk half a storey. The fire water tank moved
to the north-west corner of the plot, taking utility-yard clearance from
5.6 m to 18.6 m; the fire pump house follows it. The site is now paved
continuously from the frontage through to phase 2: 4,387 m², split 1,608
heavy-duty and 2,779 general so the two can be priced apart.
Phase 1 envelope. The walls stopped flat at 8.2 m while the roof rose to
12.6 m, leaving the entire high-side wall and both gable triangles open -
about 366 m². Walls now follow the roof underside exactly. The rebuild also
starts the sandwich panel on top of the masonry dado, clearing a 31.9 m³
overlap that had been double-counting 425 m² of envelope. A vehicle ramp
(10.5 m at 1:10) and three stair flights are added, since with FFL at
+1.2 m the building had no means of access at grade.
Phase 2. Built from the design already documented in scale.md: 45 x 38 m,
two-bay sawtooth at 10.35/7.0 m with a 3.35 m glazed riser, bays falling
ESE. A three-storey office cube - canteen, office, office plus sleeping -
stands at the yard end of the west tooth, 1.65 m proud of the ridge. Its
walls and the hall walls are Arch Walls, and the yard glazing is Arch
Windows, so both carry IFC types and cut their own openings.
RFQ updated against the model throughout, with a new section on where
mineral-wool core is required instead of PIR, for compartmentation and for
acoustics.
Site model: two sealed dock positions on the north gable (depressed
12 m pit + 12 m ramp cut into ground and paving), water treatment
moved clear of the cooling tower, second car/staff gate on the NE
edge with access road to parking, guard house relocated between the
gates, perimeter wall rebuilt continuous on its 0.4 m inset line,
leftover door recesses filled on both envelopes, loading-apron
marking removed. Renders re-exported.
Docs: phase 1 contractor pricing request (PEB spec, PIR envelope,
dock, site works, exclusions, soil caveats).
grabowski