It started with one sentence

Design a 4-head net weigher for 25 kg bags, powder at 0.6 t/m³. Start with the stand and the load cells.

Claude is connected to StateTick through our MCP server. It drew the stand, picked eight shear-beam load cells and started assembling in TwinTick.

Then I kept talking to it

Hopper on top: 2 m³, four pockets, 2-stage dosing gate over each pan.

Dust socks with hose clamps, then the roof. Bolt everything and show me.

Every part goes in where a fitter would put it, and every screw is threaded in. Before showing me anything, it checked the assembly: 237 parts and screws, assembly sequence checked.

Then the drawings

Show me the assembly drawing.

An assembly sheet and part sheets, with a parts list, codes and materials. This one is the bucket elevator that came next: 276 screws, assembly sequence checked.

Then the whole line

Eight feeder silos on a platform, a collecting screw, the bucket elevator, a buffer silo, two mixers, a vacuum conveyor, the weigher and a form-fill-seal bagger. 17 machines, 4,956 parts.

This is where AI CAD usually stops. For a machine builder, it is where the work starts.

Then the machines got a program

A model doesn’t run a factory. A program does. So every machine became equipment with real signals: weights, gates, levels, alarms. The weighing pan alone has 20 variables.

Then the logic: 24 state machines, 196 states, build OK.

Then the tests. Coarse and fine dosing passed all 17 steps; refill and dose passed 13. Some tests break the machine on purpose, like a blocked feeder screw, and check that the logic notices.

Then the operator screen

Built in Touch Studio, on the same variables as the logic. Production counters, the four weighing pans, the level switches, and a line picture where each machine turns green when it runs and red on a fault.

Then it ran

The twin started. Four pans weighed 6.25 kg each into 25 kg bags, 24.7 kg on average.

Then I switched the line to 1 kg packs, and the bagger started forming, filling and sealing.

Then I broke it

I clogged the outlet of mixer 1. Nobody told the program. The discharge timed out, the program raised the fault and the HMI showed the alarm. Clear the clog, acknowledge, reset, and the line runs again. This is AI virtual commissioning: the machine is proven against its twin, including the ways it fails, before any steel is cut.

Then real hardware

Claude mapped the I/O to two Schneider Modicon PLCs, an M241 and an M251, over Modbus TCP. It built the program and deployed it to the StateTick Runtime on my PC. 24 of 24 state machines running, I/O exchanged at PLC cycle speed.

That is what I mean by AI CAD that runs. Not a file. A machine whose program is tested and already talking to real hardware.

Watch the whole thing

This was a few days of work with Claude, cut down to twelve minutes.

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