Bracket dimensions unclear? Draft a design before building
Give a text AI dimensions and mounting requirements to draft a FreeCAD modeling plan and dimension checks for human review. This is a drafting exercise; the source used Claude Code.
Execution environment and usage
AI / software
General text chat (example: Claude)
Where to operate
A general text-AI conversation; for example, a new chat on the Claude website where available. This is a text exercise, not an agent run.
Getting started
- Open an authorized text-chat tool; Claude’s web entry is claude.ai.
- Paste the relevant text from dimensions and mounting requirements and the prompt below; request a FreeCAD modeling plan and dimension checks.
Setup and plan requirements
Prepare shareable, de-identified dimensions and mounting requirements; paste only relevant excerpts. An available chat account and allowance are needed; Claude also has location and age requirements. This exercise needs no connector or execution permission from the original source workflow. The chat can produce the text draft. Any later checks of actual files, screens, audio or test results require a person, suitable software and existing outputs. Mark checks unverified when those outputs are absent.
Prompt portability limits
Questions and supplied text can be adapted to another capable chat tool. This produces a draft, not file access, code execution, account connections or the original operational outcome.
Usage limitations
The source reports Claude Code. This page adapts it into a FreeCAD modeling plan and dimension checks, not a completed automated workflow in that product. Follow the checks below; source outcomes do not establish this exercise’s results.
Environment sources
適用情境 / When to use
Give a text AI dimensions and mounting requirements to draft a FreeCAD modeling plan and dimension checks for human review. This is a drafting exercise; the source used Claude Code. Roman documents a Claude Code and FreeCAD arm prototype with four working servos in its first version, but no finished gripper or motion feedback.
步驟 / Steps
- Start with dimensions and a CAD draft for a low-risk bracket, with actuators disconnected.
- Have a mechanically competent reviewer check clearances, mounting and material before a small test print.
- Before motion, separately assess hazards, limits and emergency stopping; begin isolated low-speed tests.
提示詞 / Prompt
Propose a FreeCAD modeling plan for a non-load-bearing test bracket using [dimensions and mounting needs]. Mark unknown dimensions, clearance checks and human acceptance points. Do not generate or execute motor commands.
留意事項 / Cautions
- An apparently assemblable model is not structural or motion-safety validation.
- Keep people, pets and fragile objects clear; never give a language model unrestricted motor control.
來源限制 / Evidence limits
A first-version builder account, not a certified design. The author has since updated the controller; this remains a historical case and safe practice direction.
流程說明 / Workflow note
The steps and prompt below are our original suggested exercise, not a transcription of the source workflow.
原始工具組合 / Original tool stack
Claude Code + FreeCAD
Source publication date: 2026-04-25
Source checked: 2026-10-19
Roman: Building a robotic arm with Claude Code, FreeCAD, and Claude Vision