RealWorldMCP
Use case · Make things

Design and print stackable desk trays with Claude

Unable to find a stackable desk tray online, a user had Claude write OpenSCAD over lunch and iterated in the evening; by the next day three printed trays were on the desk.

Hacker News

Do this with your agent

How you could do the same thing today. “Official MCP” is the vendor's own server. “Manual” means you use the provider's own site or app.

  1. OpenSCAD-MCP-ServerCommunity MCP server

    The story names OpenSCAD, not this server. This one is in our directory: Generate printable 3D models with OpenSCAD from a prompt.

  2. Real World MCPFind it through our connector

    Add our server and ask your agent to run search_tools. It lists JLCPCB, PCBWay and SendCutSend with prices and links. It does not place orders.

  3. What works today, through which server, at what price.

  4. Every MCP server and API we list for this kind of job, with install lines, auth and price.

Add Real World MCP to your agent

22 live tools
ClaudeOne click (opens in a new tab)CursorOne clickSomething else?Setup guide
  1. Open the Add custom connector dialog , prefilled. Or go to Customize → Connectors → + Add → Add custom connector.
  2. Name it Real World MCP, paste this URL, pick No sign in, then Add.
https://www.realworldmcp.com/api/mcp
Free, no key, no account. Your agent gets search_tools, get_tool and call_tool and 22 live tools. All clients and full steps

ChatGPT, Claude, Codex, Cursor, GitHub Copilot, Gemini and Windsurf are trademarks of their respective owners. Real World MCP is not affiliated with them, and compatibility does not imply endorsement or partnership.

Related use cases

  • Have Claude build parts in an open-source parametric CAD tool

    The author of Lobole, a parametric B-Rep CAD app, found Claude good at driving it through scripts; the engine, watch and bicycle shown in the README were each built by Claude.

    Make thingsClaudeSource: the vendorOct 24, 2026 · Hacker News
  • Design an ESP32 WiFi fan controller in KiCad with Claude

    A PCB designer with 40 years' experience asked Claude Opus 5.5 for the schematic and ESP-IDF firmware of a WiFi fan speed controller; it finished in about 20 minutes. Claude also drew a board outline from photos of the case and caught issues in his mains-voltage layout.

    Make thingsClaudeOct 16, 2026 · Hacker News
  • Design a rechargeable LED earring board with Claude

    An experienced designer had Claude (Fable) design an RP2350 earring with an IMU and 45 LEDs. Two footprint mistakes were worked around with JLC's help and a dab of solder, and the earrings work. Six days of model use cost about $50 on his plan.

    Make thingsClaudeSpent moneySep 5, 2026 · Hacker News
  • Have Claude design a VGA logic board and fab it at JLCPCB for $6

    Claude Opus 4.8 designed a 74-series logic and GAL circuit that outputs an EEPROM image over VGA. The owner routed it, JLC made it for $6, and it worked after one bodge wire.

    Make thingsClaudeSpent moneySep 4, 2026 · Hacker News

The story is in our words. The source was opened on Nov 2, 2026 and a key phrase was found in it. See all use cases.