So I dabble in 3D printing, I’ve been playing with CAD programs for years designing various things.
Recently Fusion360 shipped their MCP server. I Immediately hooked it up to Claude Code and started discovering what it could…and couldn’t do. I drove it guided it through 4 different designs of various complexity while it logged all the findings and gotchas and dead ends and then we created a skill from it.
Today I thought I would use Claude Code to design an n8n AI agent desk sculpture or fridge magnet. With as little prompting as possible to achieve it and see how it did
The prompt was:
Okay, we are going to make a 3D model of an N8N workflow. [Image #1] This is your base. I will design an actual agent on the canvas and give you a screenshot. We’ll use our n8n MCP to get the pixel dimensions. I want the agent body to be 60mm in length. Everything else should be scaled around. We are going to build this in Fusion 360. I already have a file open named n8n-agent.
Claude:
I’ll pull the workflow JSON to get exact canvas coordinates.
Called n8n-mcp 2 times
The n8n MCP points at xx.xx.xx.xx:5679 (VM 100), but your canvas is on xx.xx.xx.xx:5679 — a different instance, and the workflow is unsaved anyway (“My workflow”, Publish never pressed). So the API path is a dead end unless you save it there. Not a problem: I measured the screenshot directly, and since every dimension is a ratio against the agent body, the zoom level cancels out.
Measurements (screenshot px → mm at agent = 60mm):
Scale factor: 60mm / 236px = 0.2542 mm/px
Results:
What fun stuff are you doing just for the fun of it?
