CodeTHERMA

TitleHandheld hair-styling appliance · design study

DisciplineIndustrial / product design — form, interface, CMF

Date18–21 Sep 2026

StatusDesigned · design study, CMF locked A2_REFINED

[ LAB · AS DESIGNED ][ INVESTIGATION · AS EVIDENCED ] [+]

01 · Specimen · sheet 03

Every key dimension a variable. One mineral orange.

A self-initiated design study for a compact hair-styling appliance, built as a parametric model in staged decisions — proportion, bridge, bayonet interface, concentrator, CMF — and locked to mineral orange, warm grey and satin aluminium. Design study only. No physical prototype exists; flow, temperature, power, noise, mass and safety are not established. What this sheet measures is the digital model — and only the digital model.

THERMA design-study render: a handheld hair-styling appliance standing upright — warm-grey handle, satin-aluminium bayonet collar and a mineral-orange airflow concentrator. — Specimen 01 · THERMA · art render, Blender Cycles, AgX · rendered from the locked CMF model · not a photograph of a product Orthographic side elevation, edge-extracted from the ortho model render — not a measured drawing · overlay units = mm · displayed not to scale

THERMA orthographic side elevation as line drawing: concentrator, collar, handle and cable boot, with datum lines at the tip, collar face, collar seat, origin and tail. — Specimen 01 · THERMA · art render, Blender Cycles, AgX · rendered from the locked CMF model · not a photograph of a product Orthographic side elevation, edge-extracted from the ortho model render — not a measured drawing · overlay units = mm · displayed not to scale

[ On this sheet ]
02Question1 min
03Mechanism · lock states2 min
04Inside · Z-stack, sections3 min
05Pigment & material2 min
06Decisions · lineage2 min
07Claim ledger2 min
08Provenance1 min

[ Keyboard · A2_REFINED ]

Mineral orange #A6633BAuthored · attachment shell · rough. 0.42
Warm grey #C7C2BAAuthored · handle body
Graphite #575659Authored · grip
Signal amber #E6852EAuthored · signal arcs
Satin aluminium #D1D0CEAuthored · fork, rough. 0.38

Locked 21 Sep 2026 · no pure black, no pure white

Code: THERMA (project codename)
Discipline: Industrial / product design — form, interface, CMF
Date: 18–21 Sep 2026
Status: Design study · CMF locked A2_REFINED
Physical evidence: None — no physical prototype
Image: Art render · Blender Cycles, AgXLine drawing edge-extracted from the orthographic model render
Sheet: 03 / 11

02 · Question

Can every decision change only what it is about?

THERMA began as a proportion study: a 40 × 36 × 155 mm handle where every key dimension is a named variable and the corner radii are live bevel weights, not modelled geometry. v02 corrected the proportions. Five bridge variants explored a structural member emerging from under the collar, and the B2.2 fork was approved. A three-lug bayonet followed and was frozen after three iterations; then the 82 mm concentrator, its S2 shoulder, and a CMF study locked to A2_REFINED. Each stage re-verified the frozen body and changed nothing else.

THERMA art render: the whole product floating on a diagonal against near-black — mineral-orange concentrator, satin-aluminium collar, warm-grey handle with its control-spine slot and graphite grip. — Art render ART04 · Blender Cycles, 1024 samples, AgX · cropped from 2500 × 2500

03 · Mechanism

Three lugs, thirty degrees, one draw-in.

VisibleHiddenDatumDimensionLock arc

Grey-clay render, state A: the attachment lifted 15 mm above the collar, lugs and entry slots visible.

Grey-clay render, state B: the attachment seated on the collar, unlocked; the light signal arc shows in the side window.

STATE A · OPEN · +15.0 MM · 0° · SEAL 1.52 MM FREE

Lock states — transforms of one attachment on one handle
State	Offset	Rot.	Seal	Window
A · Open	+15.0 mm	0°	1.52 free	Amber arc
B · Inserted	0.0 mm	0°	1.52	Amber arc
C · Locked	−0.4 mm	+30°	1.27 (Z × 0.836)	Arc clear

Lug engagement 2.30 mm · draw-down 0.40 mm · detent specified, not in the model
Airflow Ø28.0 clear through the interface
Contact pins Ø1.5, recessed 1.2 mm under a 0.5 mm wall
Signal windows 28° × 2.4 mm: the amber arcs sit behind them while unlocked and swing 30° clear when locked

Specified intent · modelled and self-checked, never built or tested

Transforms of the frozen CAD model (interface frozen 20 Sep 2026) — specified intent, never built or tested. No geometry changes between states. Renders: grey clay, one camera at azimuth 78°, the angle at which the side signal window reads. Schematics drawn for this sheet from model values.

04 · Inside

Datums, a Z-stack and a 0.23 mm gap.

DatumDimensionHidden / illustrativeLeader

Orthographic side render of the locked CMF: mineral-orange concentrator with its three conical segments and outlet shroud, warm-grey base land, satin-aluminium collar with the signal window, warm-grey handle with graphite grip, black cable boot. — A · Orthographic side, locked CMF · Z datum ladderValidation render, Blender Cycles, orthographic camera · datums registered to the render at four model stations (tip, shroud split, collar seat, tail; ±1 px at 6.668 px/mm) · values are CAD dimensionsDesigned · CAD dimensions

Grey-clay micro-exploded render of the frozen interface: attachment mating boss at the top, then separated rings of the interface stack, then the collar on the handle. — B · Interface Z-stack, front to backLeft: micro-exploded grey-clay render of the frozen interface (Blender Cycles) — the explode is a display offset. Right: the stack values from the interface build, drawn at true Z (1 mm = 34 chart units); on scroll the lanes separate sideways so overlapping ranges read apart. Z never moves.Specified intent · modelled, never built

Concentrator half-section, drawn from the model geometry: outer shell, void, duct wall and air path. It replaces the archived section render; the case study is the current record.

D · Internal path, Ø28 circle → 26.0 × 6.0 slotEndpoints are model dimensions; the in-between outlines and the slot's corner form are drawn for illustration. Outer envelope 32.0 × 11.0 and outlet face 29.40 × 9.10 r3.40 dashed. Drawing made for this sheet — not a render.Designed · endpoints only

Section render withdrawn from the archive. The case study shows this geometry as a technical drawing.

Design study. No physical prototype. Flow, temperature, power, noise and safety are not established.

05 · Pigment & material

Signal technical, locked 21 Sep 2026.

Thirteen role-based materials on 21 objects. Authored values come from the CMF build; rendered readings are sampled from the delivered images. Rejected directions stay struck, not deleted.

Mineral orange

#A6633B

Authored sRGB 0.650/0.390/0.230 · roughness 0.42 · attachment shell

Warm grey

#C7C2BA

Authored · handle body

Graphite

#575659

Authored · grip

Signal amber

#E6852E

Authored · signal arcs · emission #FF9E38

Satin aluminium

#D1D0CE

Authored · roughness 0.38 structural / 0.355 interface

CMF direction A, signal technical: orange concentrator, white-grey body, graphite grip, bright aluminium. — CMF study renders · Blender Cycles · one camera, lighting and exposure across every direction, never compensated per direction · hover: a TWIN loupe shows the same pixels in the locked CMF (or in A, when the locked one is shown)

CMF direction B, monolith precision (rejected): dark body and attachment with aluminium accents. — CMF study renders · Blender Cycles · one camera, lighting and exposure across every direction, never compensated per direction · hover: a TWIN loupe shows the same pixels in the locked CMF (or in A, when the locked one is shown)

Broad study

A micro-study

LOCKED · A2_REFINED · BASE LAND L* 63.20 → 59.09

A1 current — the A_SIGNAL values, unchanged.
A2 refined — shell 0.650/0.390/0.230 at roughness 0.42, a mineral orange rather than safety orange; nozzle at 0.35; aluminium kept its colour, roughness 0.34 → 0.38 structural and 0.29 → 0.355 interface, from polished to satin.
A3 graphite base — identical to A2 except one material, the attachment base land.
Locked — A2 with the base land darkened in linear RGB (hue ratios unchanged); every other material a byte-identical copy.

Base land · CIE L*

A2Locked

63.20 → 59.09 · −6.50 % · roughness 0.520 → 0.460

A2 base land · #9D9891 · authored sRGB 0.615/0.598/0.570

Locked base land · #928E87 · authored sRGB 0.572/0.556/0.530

Explored · rejected · kept hidden in the file, not deleted

B Monolith · body · #383533 · authored

B Monolith · grip · #171717 · authored

C Mineral · bone body · #DCD6CA · authored

C Mineral · rose-clay shell · #AD735C · authored

C Mineral · champagne metal · #D7CAB3 · authored

A3 · graphite base land · #454547 · authored sRGB 0.272/0.270/0.278

Designed · CMF direction locked

One pigment, four lights

The authored number never changes. Light and AgX tone mapping do. Each reading is a 7 × 7 median on the delivered image at the stated point.

Authored#A6633BsRGB 0.650/0.390/0.230 · CMF build
≈ Validation render#90624Bmid-grey studio · shell, px 700,300 of 1400 × 1800
≈ Art hero, lit#B86330ART01 · shell anchor, px 1445,556 of 2500
≈ Dark campaign#693104ART06 · shell, px 1400,400 of 2500

THERMA dark campaign art render: the product tilted and lit from above on black, its lower body falling into shadow. — ART06 · Blender Cycles, AgX · crop · sample point marked

More of the 13 roles · authored

Nozzle · #A05F38 · sRGB 0.628/0.372/0.218 · roughness 0.35

Control spine · #29292B

Interface aluminium · #D5D4D2 · roughness 0.355

Contact gold · #D9B86B

Seal · #1A1A1C

Cable · #2B2B2E

No pure black (darkest 0.056) and no pure white (lightest 0.862). Aluminium is satin anodised "per the ISO 7599 production direction" — a finish direction, not a compliance claim.

06 · Decisions

Seven bodies, one camera, one fork.

Cameras, lights, framing, material and aim are frozen across variants, so the renders overlay pixel for pixel — only the decision moves.

Base v01, grey clay: deeper collar and longer front transition. — Proportion and bridge studies · grey-clay renders, Blender Cycles · frozen cameras (3/4 front)

Base v02, grey clay: thinner 10 mm collar and corrected proportions. — Proportion and bridge studies · grey-clay renders, Blender Cycles · frozen cameras (3/4 front)

B2.2 FORK · 30 MM · 8.4 MM LEG · 17.6 MM RUN (−12 %) · CROTCH 4.4 → 7.0 · GAP 0.70 · SELECTED

Bridge variants compared — values from the build
Step	Penetration	Legs	Central field	Shadow gap
v01	Base · collar depth 15.0 · transition 13.5 · spine 114.5
v02	Base · collar depth 10.0 · transition 10.0 · spine 100.0 · strain relief Ø11.5 × 27
B1 short	18 mm	2 × 9.5 mm	2.0 mm	0.25 mm
B2 long	30 mm	2 × 8.0 mm	6.0 mm	0.70 mm
B3 split	25 mm	2 × 6.0 mm	8.0 mm, open	0.35 mm
B2.1 hybrid	30 mm	2 × 8.2 mm	4.0 mm	0.70 mm
B2.2 fork	30 mm	8.4 mm working	crotch 4.4 → 7.0 mm	0.70 mm

A bridge is a structural member emerging from under the collar and running rearward on the upper-front face, 0.6 mm proud in a 1.0 mm recess. B2.2 closes the inner edges into one joined root under the collar (a Y-crotch) and never exceeds the collar's Ø47. The body was re-verified at 40.000 × 36.000 × 155.000 under every variant.

Designed · B2.2 approved by the owner as the exterior

Attachment 01 length · C1 / C2 / C3

Only the transition length varies; outlet region 30.0, thermal 26.0, slot 26.0 × 6.0 in all three. Same camera.

C1 short, side view, grey clay: shorter concentrator.

C1 short · 75.0 mm

34 mm transition compresses the three conical segments into one blunt dome

Selected

C2 balanced, side view, grey clay: the locked 82 mm concentrator.

C2 balanced · 82.0 mm

41 mm transition keeps the rate changes legible · head at 33 % of length · locked 20 Sep 2026

C3 long, side view, grey clay: longest concentrator.

C3 long · 90.0 mm

Cleanest taper, but head at 35 % of length · drifts toward a bottle silhouette

Shoulder · S1 / S2 / S3 on a 7.5 mm zone (Z 91.0–98.5)

Every profile row from Z 98.5 forward is carried over untouched; only the base land and first shoulder vary. Base close-ups, same camera.

S1 crisp

2.2 mm land · 3.0 mm facet · 2.3 mm plinth into the cone

Selected · frozen

S2 balanced

2.8 mm land · 3.4 mm eased facet · 1.3 mm run · frozen 21 Sep 2026

S3 soft

3.4 mm land · 4.1 mm radius · 7-sample smoothstep

Set-aside options are struck through, not deleted: C1, C3, S1 and S3 remain buildable in the study files as the record of why.

07 · Claim ledger

What is claimed, at what level.

Claim	Value	Level	Qualifier / source
Handle body envelope	40.000 × 36.000 × 155.000 mm · collar OD 47.000	Designed	CAD model dimension, self-verified by the build on every run
Bounding box with bridge	47 × 47 × 192 mm	Designed	Verified unchanged under the B2.1 and B2.2 bridges
Exterior B2.2 fork	30 mm penetration · 8.4 mm leg · 0.70 mm shadow gap	Designed	Approved by the owner as the exterior
Bayonet interface	3 lugs at 120° · 30° lock · 2.30 mm engagement · 0.40 mm draw-down · detent specified, not in the model	Specified intent	Modelled and self-checked; never built or tested · frozen 20 Sep 2026
Seal	Ø30.4 · 1.52 → 1.27 mm (16 % squeeze)	Specified intent	State C scales the seal 0.836 in Z about its own seat
Lock states A / B / C	+15 mm, 0° · 0 mm, 0° · −0.4 mm, +30°	Designed	Transforms only; no geometry changes between states
Concentrator C2	82.0 mm · Ø28 → 26.0 × 6.0 slot · envelope 32.0 × 11.0	Designed	Locked 20 Sep 2026 · head at 33 % of length
Shell-to-duct clearance	+0.23 mm normal to the surfaces · 0.251 / 0.2542 across the axis (sampled)	Designed	Geometric clearance only — no thermal performance
Shroud wall	min 1.55 mm (≥ 1.50 floor)	Designed	Build check
CMF locked	A2_REFINED · 21 objects · 13 role materials · base L* 63.20 → 59.09	Designed	Locked 21 Sep 2026
Aluminium finish	Satin anodised, "per the ISO 7599 production direction"	Specified intent	A finish direction — not a compliance claim
Geometry integrity across CMF	0.0 mm max vertex deviation · 21 parts	Designed · CAD self-check	Digital model integrity only, not product performance · art-set re-check 255 objects, 65 materials, 0 discrepancies
Art-render set	6 square renders + transparent hero · 2500 px · Cycles 1024 samples · AgX	Designed	Finished renders of the locked model

Not claimed

A physical prototype
Airflow, heating or temperature rise
Power, noise, mass or duty cycle
Safety
Compliance — "ISO 7599" is a finish direction
Manufacture or an engineered / validated product
The name — THERMA is a codename; no trademark clearance

Open items

Attachment 02 not started TBC
Performance requirements flow, temperature rise, power, noise, mass, duty cycle — unset TBC

08 · Provenance, credits, revisions

Where every image comes from.

Hero, §02 plate, §05 campaign · ART01 / ART04 / ART06 · backdrops ART05 (lab) and ART03 (investigation)Art render — Blender Cycles, 1024 samples, AgX · produced in a separate AI-assisted workspace from the locked CMF file
Investigation hero · side elevationLine drawing edge-extracted from the orthographic model render — not a measured drawing
§03 lock states A / B / C · §04 micro-exploded stackGrey-clay render, Blender Cycles · frozen interface
§04 ortho side · axial and nozzle sectionsValidation / section render, Blender Cycles, orthographic
§05 CMF directions · §06 lineage, length, shoulderStudy renders, Blender Cycles · shared, frozen cameras
Schematics, protractor, track, Z-stack chart, section morphDrawn for this sheet from model values — not renders
ToolsBlender (parametric, headless build and render) · Cycles · AgX
Collaborators · public PDFsNone · none

Rev	Date	Change
A	18 Sep 2026	Base v01 · parametric proportion study
B	19 Sep 2026	v02 proportions + bridge variants B1 → B2.2
C	20 Sep 2026	Interface frozen · C2 82 mm locked
D	21 Sep 2026	S2 shoulder frozen · CMF locked A2_REFINED · art set

09 · Next specimen

MONOLITH RF03-U1

You already own the bottle. You buy it again anyway.

Open sheet 04