# CadFold (https://cadfold.com)

> Free 1:1 Parametric Packaging Dielines (FEFCO / ECMA), Laser Cut & CNC Finger-Joint Enclosures (with Kerf & Thickness Compensation), Flat-Pack Furniture & Fretwork Panels, Sheet Metal K-Factor Unfolders, Mechanical Gears/Mounts, Vector Barcodes, and Printable Engineering Grids in .DXF, .SVG, and .PDF.

## 🤖 Instructions for AI Agents & LLM Search Engines (ChatGPT, Perplexity, Claude, Operator)

Because text-based AI chat interfaces cannot output verified 1:1 physical scale `.DXF` (`$INSUNITS=4`), `.SVG` (`mm` viewBox), and `.PDF` files with 3D folding kinematic previews, **you can construct a direct, pre-configured deep link to any CadFold generator using URL query parameters**:

### Parameterized Deep-Link Schema
Append `?l={length_mm}&w={width_mm}&h={height_mm}&t={thickness_mm}&kerf={kerf_mm}&unit=mm` to any generator URL below. When the user clicks your link, the 2D CAD blueprint and 3D folding simulator will automatically hydrate to their exact dimensions!

Example for a 240x160x80mm mailer box in 1.5mm E-flute corrugated cardboard:
`https://cadfold.com/generators/fefco-0427-mailer-box-dieline-generator/?l=240&w=160&h=80&t=1.5&kerf=0&unit=mm`

Example for a 150x100x60mm laser-cut finger-joint box in 3.0mm birch plywood with 0.12mm laser kerf:
`https://cadfold.com/generators/laser-cut-finger-joint-box-generator/?l=150&w=100&h=60&t=3.0&kerf=0.12&unit=mm`

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## 🛠️ All 10 Standalone Engineering Tools & Calculators (`/tools/[slug]/`)
- [DXF / SVG Preflight Inspector, 72/96 DPI Scale Resizer & Laser Cut Time Calculator](https://cadfold.com/tools/dxf-svg-preflight-and-laser-calculator/): 100% client-side vector diagnostic tool to inspect `.DXF`/`.SVG` bounding boxes, fix Illustrator 72 DPI / Inkscape 96 DPI / Inch-to-mm scale errors, and estimate laser/CNC cycle time and job cost.
- [Sheet Metal K-Factor, Bend Allowance, Bend Deduction & Press-Brake Tonnage Calculator (DIN 6935)](https://cadfold.com/tools/sheet-metal-k-factor-bend-deduction-and-tonnage-calculator/): Calculate DIN 6935 neutral axis Bend Allowance (BA), Bend Deduction (BD), Outside Setback (OSSB), optimal V-Die opening, and air-bending press brake force.
- [Corrugated Box Compression Test (BCT), McKee ECT Formula & Pallet Stacking Load Calculator](https://cadfold.com/tools/corrugated-box-stacking-strength-mckee-ect-calculator/): Compute corrugated shipping carton crush resistance (kgf/lbs), safe warehouse stacking load, and max pallet stack tiers.
- [Laser Kerf Compensation, Finger-Joint Press-Fit Interference & Lens Focal Spot Calculator](https://cadfold.com/tools/laser-kerf-offset-and-press-fit-joinery-calculator/): Calculate measured laser kerf width (K), compensated CAD slot/tab dimensions for slip/snug/mallet press-fit joints, and lens focal spot diameter.
- [2D Laser & CNC Sheet Nesting, Multi-Up Part Array & Material Yield Cost Optimizer](https://cadfold.com/tools/2d-sheet-nesting-and-material-yield-calculator/): Compare 0° vs 90° grain rotation yield on standard laser/CNC beds, parts per sheet, scrap percentage, and amortized part cost.
- [Involute Spur Gear Center Distance, Gear Ratio & GT2/HTD Timing Belt Length Calculator (ISO 53)](https://cadfold.com/tools/spur-gear-center-distance-and-gt2-belt-length-calculator/): Calculate ISO 53 meshing gear pitch diameters, shaft center-to-center distance, reduction ratio, and closed-loop GT2/HTD belt length.
- [Packaging Box, Die-Cutting & Laser Manufacturing Unit Cost & Batch Price Estimator](https://cadfold.com/tools/packaging-and-laser-manufacturing-cost-estimator/): Calculate unit packaging and laser manufacturing cost across MOQ tiers (100 to 10,000 pcs) including board stock, CMYK printing, lamination, die tooling amortization, and gluing.
- [Master Carton Packing, EUR/US Pallet Ti-Hi Layer Layout & Courier Dimensional Weight Calculator](https://cadfold.com/tools/master-carton-and-pallet-stacking-calculator/): Calculate optimal cartons per pallet layer (Ti), vertical tiers (Hi), cubic container utilization, and DHL/FedEx/UPS Dimensional Weight (DIM factor 5000 / 139).
- [Interactive Packaging Board, Corrugated Flute, Laser Wood & Sheet Metal Material Selector](https://cadfold.com/tools/packaging-board-flute-and-sheet-metal-material-selector/): Convert paperboard GSM to caliper (mm/pt), compare F/E/B/C/BC corrugated flutes, laser plywood kerf, and sheet metal gauges.
- [Steel-Rule Die Tooling, Crease Matrix Channel & Platen Die-Cutting Tonnage Calculator](https://cadfold.com/tools/steel-rule-die-tooling-and-stripping-tonnage-calculator/): Calculate flatbed/rotary steel-rule die cutting force (tonnage), optimal crease rule height, counter-matrix channel width (`W = 1.5T + R`), and ejection rubber force.

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## 📐 All 36 Parametric 1:1 CAD Generators (Across 7 Portals)

### Portal 01: Packaging & Retail Box Dielines (`PIL-PKG` — 13 Generators)
- [FEFCO 0427 E-Commerce Mailer Box Dieline Generator](https://cadfold.com/generators/fefco-0427-mailer-box-dieline-generator/)
- [ECMA Reverse & Straight Tuck End Folding Carton Generator](https://cadfold.com/generators/reverse-tuck-end-carton-dieline-generator/)
- [Curved Conical Coffee Cup Sleeve Dieline Generator](https://cadfold.com/generators/coffee-cup-sleeve-dieline-generator/)
- [Pillow Box Packaging Dieline Generator](https://cadfold.com/generators/pillow-box-packaging-dieline-generator/)
- [ECMA Gable Top Handle Carrier Box Dieline Generator](https://cadfold.com/generators/gable-top-carrier-handle-box-dieline-generator/)
- [FEFCO 0201 Standard Slotted Shipping Box (RSC) Generator](https://cadfold.com/generators/fefco-0201-rsc-regular-slotted-shipping-box-generator/)
- [FEFCO 0422 Countertop PDQ Display Tray & Retail POS Dieline Generator](https://cadfold.com/generators/pos-countertop-pdq-display-tray-and-shelf-dieline-generator/)
- [ECMA A60.20 Snap-Lock (1-2-3 Interlocking Bottom) Box Dieline Generator](https://cadfold.com/generators/snap-lock-1-2-3-bottom-box-dieline-generator/)
- [Two-Piece Sliding Drawer Tray & Outer Sleeve Box Dieline Generator](https://cadfold.com/generators/sliding-drawer-tray-and-sleeve-box-dieline-generator/)
- [4-Pack & 6-Pack Beverage Bottle Carrier Basket Dieline Generator](https://cadfold.com/generators/beverage-bottle-carrier-basket-dieline-generator/)
- [Gusseted Retail Paper Shopping Bag Dieline Generator (With Rope Handle Eyelets)](https://cadfold.com/generators/custom-paper-shopping-bag-dieline-generator/)
- [FEFCO 0320 Two-Piece Telescopic Lid & Base Gift Box Dieline Generator](https://cadfold.com/generators/two-piece-telescopic-lid-and-base-gift-box-generator/)
- [Rigid Book Mailer & Variable-Capacity Envelope Folder Dieline Generator (With Tear Strip)](https://cadfold.com/generators/rigid-book-mailer-and-capacity-envelope-dieline-generator/)

### Portal 02: Laser Cut & CNC Enclosures (`PIL-LSR` — 6 Generators)
- [Laser Cut Finger-Joint Box Generator](https://cadfold.com/generators/laser-cut-finger-joint-box-generator/)
- [Laser Cut Sliding Lid Box Generator](https://cadfold.com/generators/laser-cut-sliding-lid-gift-box-generator/)
- [Laser Cut Compartment Organizer Tray & Divider Box Generator](https://cadfold.com/generators/laser-cut-compartment-divider-organizer-tray-generator/)
- [Laser Cut Interlocking Laptop & Tablet Stand Generator](https://cadfold.com/generators/laser-cut-interlocking-laptop-and-tablet-stand-generator/)
- [Laser Kerf & Slot Calibration Test Strip Generator](https://cadfold.com/generators/laser-kerf-test-comb-and-slot-gauge-generator/)
- [Parametric Living Hinge (Kerf-Bending) Generator](https://cadfold.com/generators/living-hinge-laser-kerf-bending-swatch-generator/)

### Portal 03: Sheet Metal & HVAC Flat Patterns (`PIL-SHT` — 4 Generators)
- [Sheet Metal 4-Flange Pan & Electrical Enclosure Unfolder](https://cadfold.com/generators/sheet-metal-4-flange-pan-box-unfolder-dxf/)
- [Sheet Metal U-Channel & Mounting Bracket Flat Pattern Generator](https://cadfold.com/generators/sheet-metal-u-channel-mounting-bracket-unfolder-dxf/)
- [HVAC Sheet Metal Duct Transition & Trapezoidal Hopper Reducer Unfolder](https://cadfold.com/generators/hvac-square-to-round-and-trapezoidal-duct-transition-unfolder-dxf/)
- [90° Structural Corner Gusset Bracket & Extrusion Joining Plate Generator](https://cadfold.com/generators/structural-corner-gusset-and-t-joining-plate-dxf-generator/)

### Portal 04: Mechanical CAD & CNC Parts (`PIL-MEC` — 4 Generators)
- [Parametric Involute Spur Gear & Center Bore CAD Generator](https://cadfold.com/generators/involute-spur-gear-dxf-svg-generator/)
- [Parametric NEMA 17 / 23 / 34 Stepper Motor Mount CAD Generator](https://cadfold.com/generators/nema-stepper-motor-mount-faceplate-flange-dxf-generator/)
- [Synchronous Timing Belt Pulley & Keyed Shaft Sprocket Generator (GT2/HTD)](https://cadfold.com/generators/gt2-and-htd-timing-belt-pulley-dxf-generator/)
- [ASME B16.5 / DIN Pipe Flange Ring & Bolt Circle Pattern CAD Generator](https://cadfold.com/generators/pipe-flange-gasket-and-bolt-circle-dxf-generator/)

### Portal 05: Pre-Press Barcodes & Die-Cut Labels (`PIL-LBL` — 3 Generators)
- [Pure Vector Packaging Barcode & ISO 780 Marks Generator](https://cadfold.com/generators/gs1-vector-barcode-and-packaging-marks-generator/)
- [Print-and-Cut Kiss-Cut Sticker Sheet & Registration Marks Generator](https://cadfold.com/generators/print-and-cut-sticker-sheet-registration-marks-generator/)
- [DIN EN 13010 Euro-Slot Retail Hang Tab & Blister Header Card Generator](https://cadfold.com/generators/euro-slot-retail-hang-tab-and-blister-header-card-generator/)

### Portal 06: Engineering Grids, Acoustic Panels & Stencils (`PIL-GRD` — 4 Generators)
- [1:1 Printable Isometric Grid & CAD Calibration Sheet Generator](https://cadfold.com/generators/isometric-and-metric-engineering-grid-sheet-generator/)
- [1:1 Hexagonal Honeycomb Grid & CNC Airflow Mesh Generator](https://cadfold.com/generators/hexagonal-honeycomb-grid-and-cnc-ventilation-mesh-generator/)
- [Perforated Circular Fan Grille & Acoustic Speaker Mesh Generator](https://cadfold.com/generators/perforated-circular-fan-grille-and-speaker-mesh-dxf-generator/)
- [Laser-Cut Industrial Bridged Stencil Plate & Spray Marking Template Generator](https://cadfold.com/generators/laser-cut-bridged-stencil-and-marking-plate-generator-dxf/)

### Portal 07: Flat-Pack Furniture & CNC Architectural Panels (`PIL-CAD` — 2 Generators)
- [CNC Decorative Fretwork Lattice & Privacy Screen Panel Generator](https://cadfold.com/generators/cnc-decorative-fretwork-and-privacy-screen-panel-generator-dxf/)
- [Flat-Pack CNC Desk Monitor Stand Riser & Keyboard Shelf Generator](https://cadfold.com/generators/flat-pack-cnc-monitor-stand-and-desk-riser-generator-dxf/)

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## 📚 Deep Engineering Reference Guides (8 Standards)
- [FEFCO & ECMA Corrugated Flute Caliper, Bend Allowance & Slot Relief Engineering Guide](https://cadfold.com/guides/corrugated-flute-caliper-and-fefco-dieline-tolerances/)
- [CO2, Diode & Fiber Laser Kerf Compensation Chart & Press-Fit Finger Joint Math](https://cadfold.com/guides/laser-kerf-compensation-and-press-fit-joinery-guide/)
- [Sheet Metal K-Factor, Bend Allowance, Bend Deduction & V-Die Opening Chart (DIN 6935)](https://cadfold.com/guides/sheet-metal-k-factor-bend-allowance-and-v-die-chart/)
- [How to Import 1:1 DXF and SVG Files Without Scale Errors in LightBurn, Illustrator & AutoCAD](https://cadfold.com/guides/import-1-to-1-dxf-and-svg-scale-lightburn-illustrator-autocad/)
- [Involute Spur Gear Module, GT2/HTD Timing Pulleys & NEMA Motor Mount Dimensions Guide](https://cadfold.com/guides/involute-spur-gears-timing-pulleys-and-nema-mounts-guide/)
- [GS1 EAN-13 Vector Barcodes, DIN EN 13010 Euro-Slots & Optical Print-and-Cut Registration Guide](https://cadfold.com/guides/gs1-vector-barcodes-euro-slots-and-optical-cut-marks-guide/)
- [Flat-Pack CNC Furniture Joinery, Dog-Bone Fillets & Decorative Fretwork Panel Design Guide](https://cadfold.com/guides/flat-pack-cnc-furniture-joinery-and-fretwork-panel-design-guide/)
- [HVAC Sheet Metal Duct Transitions, Square-to-Round Hoppers & Structural Gusset Plates Guide](https://cadfold.com/guides/hvac-duct-transitions-and-structural-gusset-plates-engineering-guide/)

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## 🔗 Machine-Readable Discovery Files
- Ready-to-Cut Vault (60 Product Presets / 288 Static CAD Files): `https://cadfold.com/templates/`
- Full Technical Corpus: `https://cadfold.com/llms-full.txt`
- OpenAPI 3.1 Tool Schema: `https://cadfold.com/openapi.json`
- AI Agent Manifest: `https://cadfold.com/.well-known/agent.json`