Press hall laid out 60/40 for Duplex systems (special pressings first)

User (October 2026): "the factory should have more space for duplex
setups than classic, we will mainly focus on special prints and not mono
colours plan it to be 60/40 duplex classic".

- Press hall (~870 m2) planned 60/40 by floor: four Duplex bays along the
  visitor corridor and six Classic positions in the second row (440 + 300
  = ~740 m2 at 110 / 50 m2), the rest open for mould carts and staging;
  the launch plant fills one of each, growth adds Duplex systems first.
  Replaces "room for ten more Classics".
- Full hall: 8 semi-automatic presses + 6 Classics, 57/43 by press count,
  ~1,250 to 1,410 records/h gross, ~3.6 to 4.7M a year on the scale.md
  basis (was 4.7 to 5.8M for 2 Duplex + 11 Classics); ~2.1 to 2.5 t/h
  steam and up to ~1.8 MW cooling, still a utility phase of its own.
  By hourly output the six automatic Classics still press more than the
  eight semi-automatic presses (estimate).
- pressing-line.md, scale.md (capacity table, utilities), site-candidates
  .md, crane-workshop-tours.md, roadmap.md, README (the FreeCAD Payap
  model still draws the earlier layout; noted, not redrawn).
- Calculator: preset "Full hall 60/40 (4 D + 6 C)", fleet ladder Duplex
  first (1+1, 2+1, 3+2, 4+3, 4+6) plus the same floor Classic-led (2+11)
  and Duplex-only (7+0) for comparison; plant view reserves 4 Duplex
  bays and 6 Classic positions.
- Business plan draft 0.2 rebuilt (capacity table row, plot fit, layout).

Checks: renderer 720 checks pass (node budget 2,700 for the Duplex-heavy
stress preset, 60 fps), calculator regression 0 fails, level selector and
page checks clean at 390 / 1024 / 1440 px dark and light; PDF 47 pages
with a filled table of contents.

docs/site-candidates.md

@@ -122,7 +122,8 @@ dropped. Source record with the zone's full rules and annex:
 5. **Plot fit.** Shape and size against the 60 × 25 m building, the
    detached utility yard and the phase 2 footprint (6 to 8 rai). The
    Payap scenario model below needs a 150 m square (14.1 rai) as drawn,
-   with room for ten more Classics, a colour store and a reserve.
+   with a press hall laid out 60/40 for Duplex systems, a colour store and
+   a reserve.
 6. **Galvanics on a campus.** Phase 5 electroplating needs the lessor's
    written consent; the zero-discharge design
    ([sustainability](sustainability.md)) becomes a lease condition, not
@@ -155,7 +156,7 @@ and every equipment envelope is an estimate.
 
 - **Plot**: 150 × 150 m (22,500 m², 14.1 rai), road assumed on the south
   side, 6 m setbacks (placeholder). That is about twice the 6 to 8 rai of
-  [scale](scale.md): the factory keeps room for ten more Classics and a
+  [scale](scale.md): the factory keeps room for the full press hall and a
   colour store, and the plot keeps a reserve in front for a second hall
   or a PV field.
 - **Factory, production floor only**: 128 × 25 m at floor level +1.2 m,
@@ -179,9 +180,14 @@ and every equipment envelope is an estimate.
     that special designs need, about 100 positions on four levels
     (estimate), with weighing and mixing and a vacuum conveying station
     ([pressing line](equipment/pressing-line.md)).
-  - **Press hall** (~870 m²): two Duplex systems, each two HRP 12 presses
-    with an EX 50 and an EX 35, the Classic, and ten more Classic
-    positions in two rows. Each Duplex is one operator's cell of about
+  - **Press hall** (~870 m²), laid out 60/40 by floor for Duplex systems
+    because the plant focuses on special pressings (October 2026,
+    [pressing line](equipment/pressing-line.md)): four Duplex bays, each
+    for two HRP 12 presses with an EX 50 and an EX 35, along the visitor
+    corridor, and six Classic positions in the second row; the launch
+    plant fills one of each. The FreeCAD model still draws the earlier
+    layout (two Duplex systems, the Classic and ten more Classic
+    positions). Each Duplex is one operator's cell of about
     5 × 3 m at Newbilt's machine sizes: presses either side turned
     towards the operator, the extruders behind him, one trimmer in front
     ([pressing line](equipment/pressing-line.md)).