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CadFold Universal Engineering CAD

1:1 CAD Calibration, Layer Conventions & Material Allowances Reference Hub

Every parametric studio and ready-to-download template on CadFold is built on internationally recognized packaging, laser cutting, and mechanical CAD standards. Explore our 6 deep engineering guides or launch our interactive Client-Side DXF/SVG Preflight & Laser Cut Time Calculator below.

Deep Technical Reference Library

6 Authoritative Manufacturing & CAD Calibration Guides

GDE-PKG-01 · Packaging Dielines 3 Equations

FEFCO & ECMA Corrugated Flute Caliper, Bend Allowance & Slot Relief Engineering Guide

Master reference table for corrugated board calipers (0.8mm F-flute to 6.5mm BC-flute), internal vs. external dimension conversions, rollover wall bridges (2T + 0.5mm), and dust flap clearances.

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GDE-LSR-02 · Laser & CNC Joinery 3 Equations

CO2, Diode & Fiber Laser Kerf Compensation Chart & Press-Fit Finger Joint Math

Reference kerf widths (K = 0.08mm to 0.25mm) by laser wattage and material, plus mathematical equations for friction-fit finger joints, mortise-and-tenon slots, and living hinges.

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GDE-SHT-03 · Sheet Metal & HVAC 3 Equations

DIN 6935 Sheet Metal K-Factor, Bend Deduction (BD) & Air-Bending V-Die Reference Chart

Equations and gauge tables for unfolding 90° sheet metal pans, U-brackets, and HVAC duct transitions with accurate K-Factor neutral axis shift and corner tear reliefs.

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GDE-CAD-04 · Furniture & Panels 2 Equations

How to Import .DXF, .SVG & .PDF Files at Exact 1:1 Scale in LightBurn, Illustrator & AutoCAD

Why SVG files often import at 75% or 133.3% size across different CAD programs, how CadFold locks physical mm attributes, and step-by-step import settings for every machine software.

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GDE-MEC-05 · Mechanical CAD 2 Equations

ISO 53 Involute Spur Gears, GT2/HTD Timing Pulleys & NEMA Motor Mount Engineering Guide

Complete equations and dimension tables for mating spur gears (Module m = D_p / Z), synchronous belt pulleys, DIN 6885 shaft keyways, and NEMA ICS 16 stepper motor faceplates.

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GDE-LBL-06 · Barcodes & Marks 2 Equations

GS1 Vector Barcodes, DIN EN 13010 Euro-Slot Hang Tabs & Print-and-Cut Registration Marks

Pre-press specifications for 100% vector barcodes (zero raster pixelation), European retail pegboard Euro-slot dimensions, and optical camera registration marks.

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Universal Toolpath Standard

Standard Color-Coded Vector Toolpath Layers (.DXF, .SVG, .PDF)

CAD Layer Name RGB Hex Code AutoCAD ACI Index Stroke Style Machine Operation
CUT #EF4444 ACI 1 (Red) Continuous Solid 100% Through-Cut Steel Rule Knife / Full Laser Cut Power
CREASE #2563EB ACI 5 (Blue) Dashed (4, 2.5) Blunt Creasing Rule / Scoring Wheel / Press-Brake Bend Axis
SCORE #10B981 ACI 3 (Green) Dotted / Hairline 50% Depth Kiss-Cut / Vector Line Engraving / Etched Part Markings
DIMENSIONS #64748B ACI 8 (Gray) Reference Layer Non-cutting QA inspection labels & 50.0mm physical verification bar