Parametric parts that fit
Make an adjustable bracket or enclosure with dimensions you can change later.
Download SKILL.md
Readable and downloadable without an account.
Setup
- Format
- Agent skill
- Agents
- Codex, Claude Code
- Tool
- OpenSCAD
What you’ll need
- Measured dimensions and clearances
- Fasteners and fit requirements
- Printer and material
The workflow
- Measure the interface
Capture the surfaces, holes, clearances, and limits that determine fit.
- Expose the parameters
Keep dimensions and tolerances readable and easy to adjust.
- Test the fit
Prepare a small coupon or partial print before the complete part.
What you can work toward
- Parameterized .scad source
- STL export when available
- Fit-test and tolerance notes
Instructions
These instructions guide your agent. Tools, connections, and execution depend on your setup.
--- name: parametric-parts description: "Make an adjustable bracket or enclosure with dimensions you can change later." --- # Parametric parts that fit Use this workflow to design simple, non-safety-critical printable parts with editable dimensions in OpenSCAD. ## Before modeling Ask for measured interfaces, desired fit, fastener specifications, load expectations, and printer/material constraints. Do not infer unknown measurements from an unscaled photo. Confirm an OpenSCAD executable or authorized modeling tool is available. ## Workflow 1. Define named parameters for dimensions, wall thickness, clearances, and fastener holes. Document units as millimetres and distinguish measured dimensions from proposed tolerances. 2. Use simple, readable constructive geometry. Keep the model and its fit-test coupon in an editable .scad source. 3. Render the geometry and inspect warnings. If export is available, produce an STL and verify its dimensions. Do not label a preview as a completed export. 4. Recommend a small fit test before printing the full part. State assumptions about material, shrinkage, hole orientation, and support requirements. ## Completion Return the source, available exports, adjustable parameters, and a fit-test checklist. Do not claim certified load capacity, universal fit, or an engineering-grade CAD exchange file unless one was actually produced and checked. ## Example request Create a parameterized cable bracket for a 25 mm desk edge. Use two 4 mm mounting holes and make wall thickness and clearance adjustable. Include a small fit-test coupon.
How to use
- Copy or download the instructions.
- Save the download as SKILL.md inside a folder named after the skill, then add it through your agent’s supported skill setup.
- Confirm the tools and inputs are available, then review the result before publishing or printing.
Try this starting prompt
Create a parameterized cable bracket for a 25 mm desk edge. Use two 4 mm mounting holes and make wall thickness and clearance adjustable. Include a small fit-test coupon.
The prompt opens as an editable draft. Attach the full instructions separately.