TRAFFIC INDUSTRIES | B2 SAFETY BARRICADES | TI-SB-P01 / TI-SB
NOMINAL TWO-PANEL CONNECTION R2 | K-468 / K-471

Local reference CAD candidate. Final derivative acceptance remains with the root reviewer.
This package preserves the accepted nominal source geometry. Manufacturing tolerances,
pad/fastener specifications, exact GN retainer shape, physical retention and load capacity
are not established by this nominal geometry check. This is not a release for fabrication
or a statement of the actual supplied configuration.

IDENTITY AND DIMENSIONS
Two-panel reference envelope: 3270 x 650 x 1000 mm, 35 physical solids.
Single-panel core: 1600 x 650 x 1000 mm; body depth 55 mm; 9 bars; 2 feet.
Each foot is 650 long x 90 wide x 80 high mm. The original single-panel drawing with
its separate old clip has a 1650 x 650 x 1000 mm total envelope. These are distinct.
R2 connection: pin shaft dia12 x36, head dia18 x3, lug stack24, bore dia14 mm.
The exact retainer shape is unavailable. Its conservative envelope is reference context
only in native CAD and is not counted among the 35 exported physical occurrences.

FILES AND UNITS
b2-two-panel-reference-r2-en.pdf / .svg: EN A3 nominal assembly reference, R2-EN1.
Actual native front/top HLR views at 1:15 and local Y=0 section at 2:1; print 100%.
Assembly 3270/650/1000 and nominal pin/head/bore/stack dimensions are source-linked.
reference.FCStd: byte-identical accepted source, with native expression history and
hidden construction objects. Use native-occurrence-map.json for the physical selection.
model.step: byte-identical accepted geometric compound; mm; 35 solids. The original
STEP does not contain named occurrence/constraint history. The sidecar records identities.
model.ifc: IFC4 tessellation; mm; one assembly and 35 named physical occurrences.
model.glb: named reference meshes; metres; Y up. CAD(X,Y,Z) -> GLB(X,Z,-Y)/1000.
The GLB has neutral reference shading; colour/material supply approval is not implied.
model.stl: unitless format; IMPORT AS MILLIMETRES. It contains the 35 physical meshes.
STL triangle ranges and native names are mapped in native-occurrence-map.json.
b2-two-panel-reference-views-mm.dxf / .dwg: primary 2D reference drawings; MODELSPACE
1:1 mm. Actual native HLR front/top and Y=0 BRep section; seven source dimensions.
Front extent3270x1000; top3270x650 mm. Curved native HLR edges are sampled at0.02 mm;
section loops at0.01 mm. View offsets/layers are explicit. These are not cutting profiles.
assembly-reference-3d.dxf / .dwg: 3D faceted assembly reference; mm; 35 named blocks.
These remain optional 3D extras, separate from the primary 2D reference drawings.

EXISTING DRAWINGS
The three existing TI-SB R02 PDF drawing downloads remain unchanged and are listed
with URLs/revisions/hashes in product-reference.json. They describe the original
single-panel/clip context. They have not been relabelled as full two-panel R2 drawings.
The new separate EN R2-EN1 reference PDF in this package matches the two-panel source.

CHECKS
Native/source STEP hashes preserved; native reopened/recomputed; pin36->22->36 mm
tested in memory without saving. Source mesh deflection0.10 mm; each of35 meshes
closed with consistent winding before export and after STL reopen. IFC schema attributes/
inverses and geometry-engine reopen checked; full EXPRESS rules/recipient apps not run.
GLB reopened; DXF/DWG passed exact named-block and coordinate roundtrip checks.
STEP's upstream bounded pin analytic-equivalence/volume-integration exception remains
explicit in verification-summary.json; no stronger roundtrip tolerance is claimed.
The pre-existing source STL failed topology checks and was regenerated from native.

Source identity, physical occurrence map, units, measured checks and use boundaries
are integral parts of each archive. Native/STEP source masters were not edited.
