AI-Assisted Design · 3D Printing · Quilting

3D-Printed Quilting Templates.

Measured. Generated. Validated. Printed.

A reusable workflow for turning annotated quilting templates and physical measurements into rigid, reusable, 3D-printable cutting tools — plus a growing library of templates we have actually printed and tested.

Validated STL Physical measurements Reusable AI skill Tested template library
A set of finished 3D-printed quilting templates created through the Arroyo Cooperative template-generation workflow
Real printed templatesBuilt from measured source geometry

How this escalated

Kallie had paper quilting templates.
I had 3D printers.
One rigid template seemed like a reasonable idea.
Then came curve reconstruction, lattice geometry and QC.
Then the one-off became a reusable generation skill.

The problem

Paper works.
Rigid and reusable works better.

Curved and irregular paper templates can bend, wear out and be awkward to position consistently. The goal was not to replace the original quilt pattern, but to turn its cutting-template geometry into a durable physical tool without manually redrawing every shape in conventional CAD.

The source stays authoritative.

The original quilt pattern defines what the finished template is supposed to represent. A scan or PDF helps reconstruct the shape, but it is not blindly trusted as a scale reference.

  • Scans can stretch or distort
  • Printed pages may not be exactly to scale
  • Handwritten annotations can be ambiguous

Physical measurements control the geometry.

Real measurements supplied from the source template determine the model's final size and critical curve relationships. Ambiguous dimensions get clarified instead of guessed.

  • Numeric values need known geometric endpoints
  • Companion dimensions provide sanity checks
  • Final slicer X/Y/Z dimensions are checked before printing

More than one STL

A reusable workflow,
not just a download pile.

The project has two halves: a reusable Markdown generation skill that captures the workflow, and a growing library of quilt-specific template sets that have gone through the same validation and physical-test process.

01 // SKILL

Reusable generation rules

The current Markdown skill turns lessons from previous builds into repeatable instructions for the next template.

02 // MEASURE

Dimensional preflight

Measurements are checked for meaning, reference edges and ambiguity before geometry generation begins.

03 // GEOMETRY

Lattice and grip features

Internal lattice is modeled geometry, not slicer infill, and optional top-side fabric-grip spikes can be added where useful.

04 // VERIFY

Independent STL validation

The exported mesh is reopened and checked rather than assuming the generator produced a correct file.

05 // SLICE

Slicer sanity check

Final X, Y and Z dimensions are verified in the slicer before committing material and time to a print.

06 // TEST

Physical print testing

The printed template is measured and used as the final proof that the geometry works outside the screen.

07 // QC

Machine-readable receipt

Published templates can include JSON verification data documenting dimensions, mesh state and the STL hash.

08 // LIBRARY

Growing tested collection

Each successful quilt project can become another reusable, documented template set in the public repository.

AI-assisted workflow

The process is collaborative, iterative and allergic to guessing.

AI accelerates the translation from annotated source material and physical measurements into printable CAD. It reconstructs curves, creates borders and lattice geometry, exports the STL and helps validate the result. Human measurement, slicer checks and real-world print testing determine whether that result is actually correct.

AnnotateMeasurePreflightGenerateValidateSlicePrintTestPublish
AI can manufacture the wrong number with breathtaking precision. Scans lie. Handwriting can lie harder. Dimensions without clear endpoints are not useful dimensions. The actual exported STL, slicer measurements and physical print all get checked before a template earns the word “tested.”

First tested set

Funkadelic Quilt.
Four actual templates.

The first complete public template set supports the Funkadelic Quilt by The Retro Quilter. The repository contains independently created physical template tools; users still need the original quilt pattern from its designer or an authorized seller.

Status // Tested

Funkadelic Quilt

Four curved cutting templates form the first completed set in the public library. Each template can be accompanied by its annotated source, printable STL, validation JSON and a known-good Bambu Studio project where useful.

Big Outer ArcValidated printable template
Big Inner ArcValidated printable template
Small Outer ArcValidated printable template
Small Inner ArcValidated printable template

Actual output

Generated geometry.
Real printed tools.

The project photography documents the physical result, not a substitute render. These are the kinds of rigid templates the workflow is intended to produce and validate.

Quality control

Trust the file.
After you verify the file.

The validation step reopens the actual exported STL and checks dimensional and mesh properties. A published template may include a JSON QC record so the verification state travels with the file.

DimensionsFinal X/Y size, body thickness and total Z are checked from the exported model.
Mesh integrityThe target state is watertight geometry with exactly one connected component and no stray parts.
Verification recordJSON can record geometry details, validation results and a SHA-256 hash of the STL.
Measure twice before cutting the good stuff. Printer calibration, slicer settings, material and environment can affect a finished print. Verify the printed template against the original pattern and physical measurements before using it on valuable fabric.

Project resources

The website explains it.
GitHub has the working set.

The public repository is the authoritative source for the current generation skill, tested template library and detailed documentation. That keeps the downloadable material in one place as the project evolves.

Current generation skillThe latest reusable Markdown workflow lives at the repository root.
Historical skill revisionsPrevious versions preserve how the workflow evolved as real problems were discovered.
Printable STL filesUniversal geometry that can be used with compatible slicers and printers.
Validation JSONDimensional and mesh-verification records accompanying published templates where applicable.
Bambu Studio projectsKnown-good 3MF setups are included where useful as a tested starting point.
Annotated source materialPattern-template references and measurements used to reconstruct the printable geometry.
License and disclaimerCC BY-NC 4.0 terms, third-party pattern-rights guidance and verification notes.
Growing template libraryTested quilt-specific sets can be added without changing the underlying workflow.
3D-printed quilting template generation project social graphic

Accessibility

No printer? No problem.

You do not need to become a 3D-printing hobbyist just to use a better quilting template. Download the STL and have a university or college lab, public-library makerspace, community fabrication lab or commercial print service produce a copy for your personal or other noncommercial use. The fabrication service may charge its normal material and fabrication fee for that job.

Pattern rights & use

The tool supplements
the original pattern.

Quilt names and designer names are used for identification and attribution. The repository does not grant rights in third-party quilt patterns, instructions, artwork or trademarks, and the physical templates are not a substitute for obtaining the original pattern.

Independent maker project. The project files are licensed under CC BY-NC 4.0 to the extent Javier owns the material. Third-party pattern rights remain with their respective owners. The Funkadelic Quilt name and The Retro Quilter name identify the source pattern and designer; no sponsorship, endorsement or affiliation is implied.
#FPD

Function. Print. Destroy. Same acronym, different project. The templates survived enough iterations to earn this version.

Apparently this was inevitable

Quilting + AI + CAD + 3D printing + GitHub.

Use the skill. Browse the tested templates. Print your own. Then measure the result before the rotary cutter gets anywhere near the expensive fabric.