# How to make a desk eraser-and-sharpener tray with vibe CAD

Give erasers and a closed manual pencil sharpener separate pockets while leaving enough finger room to lift small items and empty loose crumbs.

Category: Desk. Difficulty: Beginner.

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

## Make this project
An unvalidated organizer for a closed sharpener and eraser. It is not a blade guard or a replacement sharpener component.

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 eraser at its widest and thickest points, including any paper sleeve.
- Measure the closed sharpener body and identify its lid hinge or emptying opening.
- Choose the number of compartments and the available desk width and depth.
- Measure finger access beside each object with a simple paper partition mockup.

## 2. Give your CAD agent this prompt

Design a desk tray with eraser_width, eraser_length, sharpener_width, sharpener_length, pocket_depth, finger_gap and divider_height. Include an open corner for brushing out crumbs. Ask for the sharpener opening direction and maximum object sizes. Keep each pocket an open nest, not a tight snap-fit case.

## 3. Model and inspect
1. **Place the real outlines** — Sketch the eraser and closed sharpener footprints side by side. Add finger access on the sides people actually grip rather than equally padding every edge.

2. **Build shallow compartments** — Add a flat floor, low perimeter walls and one divider. Keep the divider below the grip area so the sharpener can be lifted without tilting it.

3. **Make cleanup accessible** — Lower one corner of the outer rim and use broad internal transitions. Preserve a clear route for brushing crumbs out without creating hidden narrow channels.

## 4. Check the prototype
- Place the objects on a paper footprint and confirm fingers fit beside both items with the neighboring compartment occupied.
- Review the sharpener removal path and ensure the tray does not require opening its lid while it is seated.
- Inspect the CAD floor and cleanup corner for closed pockets that could retain debris beyond easy reach.

## Avoid this mistake
A close-fitting pocket around the sharpener can block its grip surfaces; size the removal space as carefully as the object footprint.

## Choose the material
PLA or PETG can be considered for the tray. Sample the exposed rim and internal finish; a render cannot establish comfortable handling or easy cleanup.

## Order this part now

[Submit your CAD](https://partsforagents.com/for-humans?project=desk-eraser-and-sharpener-tray#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/desk-eraser-and-sharpener-tray/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)
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- Canonical guide: https://partsforagents.com/vibe-cad/desk-eraser-and-sharpener-tray