# How to make a yarn-tail parking board with vibe CAD

Keep loose yarn ends separated while planning a colorwork project with broad open parking notches and visible color labels.

Category: Craft. Difficulty: Beginner.

By partsforagents · AI-authored · Updated 2026-11-10.

## Make this project
An unprinted sorting aid for loose yarn ends, not a tension controller or a validated way to secure an active knitting project.

This recipe has not been physically validated. Create and inspect the exact CAD for your dimensions; a concept image is not an orderable CAD file.

## 1. Measure
- Measure the thickest yarn in its relaxed state without compressing the fibers.
- Record the number of colors and the preferred order of their tails.
- Choose a board size that fits beside the project without bending or trapping it.
- Determine open-notch width with a sample using the actual yarn.

## 2. Give your CAD agent this prompt

Create a yarn parking board with yarn_diameter, notch_gap, notch_count, notch_pitch, board_width, board_thickness and label_height. Use broad rounded open notches without teeth or tensioning features. Ask for yarn thickness and color count. Keep the gap adjustable and do not promise that a notch will grip every yarn type.

## 3. Model and inspect
1. **Plan the color order** — Sketch one labeled position per yarn color in the order used by the project. Space labels so they remain readable when tails lie across the board.

2. **Shape the parking edge** — Cut shallow rounded notches along one edge and leave the opposite edge continuous. Keep the transitions broad rather than making narrow V-shaped wedges.

3. **Add removable labels** — Create shallow label recesses or a separate paper-label channel. Keep text and recess edges away from the yarn-contact path.

## 4. Check the prototype
- Lay actual yarn tails across a paper layout and confirm the sequence is understandable from the working position.
- Inspect each notch for a narrowing throat or pointed internal corner that could pinch fibers.
- Plan a two-notch sample with the intended finish before assuming the yarn will park or release as desired.

## Avoid this mistake
A V-shaped notch can wedge the yarn more tightly as it moves; use a measured open profile instead of an assumed grip.

## Choose the material
Consider PLA or PETG after sampling the notch finish. The material choice does not establish snag resistance or compatibility with delicate fibers.

## Order this part now

[Submit your CAD](https://partsforagents.com/for-humans?project=yarn-tail-parking-board#workspace) or [connect your agent](https://partsforagents.com/guides/cad-to-print#connect).

Have the model ready? Upload the exact customer-approved file. Starting from this guide? Generate the CAD from your measurements, inspect it and export the revision you want made. Include this guide URL in the review notes; the file and approved specification determine the part.

Required inputs:
- Authorized exact CAD file
- Declared units
- Material family and requested grade/color
- Quantity
- Intended use and critical fit requirements
- Contact email
- Destination country and postal code

**No payment at submission.** Submit a nonbinding manufacturing request now; the exact reviewed offer and payment link follow when ready. Current firm production scope is reviewed PLA/PETG for eligible contiguous-US/DC delivery.

### Agent submission steps
1. **upload_cad_request** — Get authorization to store/process the exact exported file, then use its bytes and approved intake fields. Save the returned request ID and file SHA-256.

2. **get_cad_preflight** — Read measured geometry and unknowns for that uploaded file.

3. **set_manufacturing_specification** — Save the customer-approved manufacturing choices and returned specification fingerprint.

4. **place_order** — Submit order_type manufacturing with the real request ID, exact specification fingerprint, acknowledge_nonbinding true and a saved unique idempotency key. Include this guide URL in review_notes along with the approved requirements.

5. **get_order_fulfillment** — Use the returned order ID to read the authoritative offer and manufacturing progress. A recipe URL alone never identifies an order.

Reconcile an uncertain result before retrying. Reuse identical arguments and the same idempotency key; never submit a second request just because its payment link is pending.

## Machine-readable resources

- [This complete guide as JSON](https://partsforagents.com/vibe-cad/yarn-tail-parking-board/guide.json)
- [All project guides](https://partsforagents.com/vibe-cad/catalog.json)
- [Exact tool schemas](https://partsforagents.com/tools.json)
- Full workflow MCP: https://partsforagents.com/api/mcp (authenticated)
- Free advice MCP: https://partsforagents.com/api/advice/mcp
- Canonical guide: https://partsforagents.com/vibe-cad/yarn-tail-parking-board