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Armor Scaling Calculator

Reproduce a completed armor-template planar scaling record from corresponding X/Y dimensions, exact file revision, axis policy, geometry and calibration.

Use this result well

Inputs that matter
One de-identified completed planar-scaling record scope and basis; responsible template file/revision/export source; exact piece, body region, side and local X/Y definitions; completed source and target corresponding-landmark protocols; source template geometry/extent, material/assembly/clearance/allowance and export/print calibration records; uniform or explicitly axis-specific source-owned policy; one common millimeter, centimeter or inch unit; positive source/target X and Y dimensions and source template X/Y extents; and an optional independent same-file scaled source with both X and Y extents
Output to expect
Preserved source ownership, source-to-target X/Y ratios, applied axis scales, reproduced planar X/Y extents and optional signed, absolute and relative computed-minus-independent differences for both axes
How it works
Validate every provenance, policy, unit and positive dimension; require both corresponding ratios to agree within 0.1% when the completed record specifies uniform scaling; otherwise reproduce the explicit axis-specific X/Y ratios; multiply only the source-owned planar extents; then reconcile an optional independent record for the identical file, axes, unit and allowance state
  • Confirm that template author/file/revision/export scale and unit, exact piece/side, local axes, source and target landmarks/state/acquisition/precision, planar-extent definition, material/assembly/allowance state, calibration artifact and independent values all belong to one completed record. Total character and wearer height or measurements from another piece are not interchangeable evidence.
  • Use the result only for planar scaling arithmetic and transcription QA. It does not choose landmarks or axis policy; create/unfold/repair/nest a model; add clearance, ease, padding, underlayers, seam/tab, thickness, kerf, bevel or forming compensation; validate assembled interior/exterior geometry, fit, motion, visibility, ventilation, attachment/release, structural/impact/thermal/skin-contact/flammability/accessibility safety; configure a printer/slicer; or authorize printing, cutting, fabrication or wear. Verify the current source/software instructions, mock-up/test assembly, calibration artifact and responsible maker review.

Choose your path

Built around the job you need to finish

Reproduce one completed, source-owned armor-template planar scaling record from exact corresponding local X/Y dimensions without inferring fit from total height or issuing fabrication instructions.

Cosplay maker reconciling one completed piece record

Carry an already reviewed local measurement and axis policy into one exact template revision without losing side, landmarks, unit or allowance context.

Preserve the file/revision/export source, piece/region/side, corresponding source and target protocols, geometry basis and external material/assembly record before entering the dimensions.

Gets transparent X/Y ratios and planar extents while the mock-up, fit and fabrication decision remain with the responsible maker.

Pepakura production assistant checking an export

Catch a unit, extent or transcription difference before a reviewed model proceeds to layout and print setup.

Use the completed reference-model basis, record the exact source-owned uniform or axis-specific policy, export/print calibration record and optional independent same-file extents.

Sees signed and relative differences on both axes without receiving a print-percentage command or a claim that the updated layout is fabrication-ready.

Supervised learner studying dimensional correspondence

Understand why local landmarks and two axis records matter more than one character-height ratio.

Use a de-identified reviewed training record, compare uniform and explicitly axis-specific policies, and follow the source-to-target and extent-multiplication steps.

Can explain the arithmetic and its measurement limits without learning invented clearance, foam-thickness or safety rules from a calculator.

Authoritative checks for this tool

Outputs and checklists are planning aids. Review the linked current authorities and the records, terms, instructions, and requirements that apply to your exact situation before a consequential decision.

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Reference & details

How it works

Preserve corresponding local dimensions

Record the exact source and target landmarks, body region, side, posture/state, acquisition method, unit and precision. Total character and wearer height are not universal substitutes for the corresponding dimensions of a helmet, forearm guard, greave or other piece.

X ratio = target X ÷ source X | Y ratio = target Y ÷ source Y

Reproduce the completed axis policy

Uniform mode is accepted only when both entered ratios agree within 0.1%. Axis-specific mode reproduces a policy already owned by the completed source record; the calculator does not decide whether deforming one or more axes is geometrically or materially valid.

Scaled X extent = source X extent × applied X scale | Scaled Y extent = source Y extent × applied Y scale

Keep fabrication decisions outside the arithmetic

Preserve the source file/revision/export unit, template-extent definition, material and assembly decisions, clearances, padding, seams or tabs, thickness, kerf, bevel, forming and print/cut calibration as external records. An optional same-file comparison can catch transcription differences, not validate fit or safety.

Result = planar extent only; no allowance is added

Updated: August 2026

Example Scenarios

A maker records corresponding local X and Y landmarks for the exact left-side template revision, reproduces the already reviewed two-axis ratios and compares the resulting planar extents with an independent worksheet.

A completed source review calls for uniform planar scaling. The worksheet requires the X and Y corresponding-dimension ratios to agree within tolerance instead of accepting a single total-height ratio.

A production assistant preserves the file revision, export unit, exact planar-extent definition and calibration-artifact record, then compares both computed extents with a same-file independent source before the responsible maker reviews a mock-up.

FAQ

No. That decision must already belong to the completed source/model review. Uniform mode merely verifies that both entered corresponding ratios agree within 0.1%; axis-specific mode reproduces the two recorded ratios.

Not as a universal piece correspondence. Use local source and target dimensions measured between explicitly named, matching landmarks for the exact piece, side and state.

No. The worksheet adds no material, seam, tab, clearance, ease, padding, underlayer, kerf, bevel or forming allowance. Preserve those decisions in the responsible material and assembly record.

No. It is a planar arithmetic record. Verify software and export settings, tiling/orientation, an independent calibration artifact, updated 2D layout and the responsible maker's mock-up or test assembly before fabrication.

No. Agreement only checks arithmetic and transcription for the same file, axes, units and allowance state. It does not validate landmarks, assembled interior/exterior geometry, movement, visibility, ventilation, attachment/release, material behavior, flammability or protective performance.

About Armor Scaling Calculator

Use this worksheet after the responsible maker has completed the measurement, landmark, axis-policy, allowance and calibration review for one exact template piece. It reproduces X/Y scale ratios and planar extents without treating total height as a universal proxy or turning arithmetic into a fit, safety, print or fabrication instruction.