What the Chinese robotics industry looks like from inside it: supply chains, spec sheets, and the engineering culture behind the shipping cadence.
In progress — first post on the way.
hitgavin
Control engineer. Notes on how robotics actually gets built in China.
Three things I write about
All posts →AI coding tools were built for a feedback loop measured in seconds. Here is what happens when the loop runs through a compiler, a flash cycle, and a machine in a lab.
In progress — first post on the way.
Control theory carried all the way to hardware — derivations, then the measurement that says whether the derivation was right.
1 post · latest: Gravity doesn't matter for joint PID tuning
Latest writing
Long-form feed →- Gravity doesn't matter for joint PID tuning
Posture changes the gravity torque on a humanoid shoulder by 16 N·m and the stability margin by 0.018°. Here is why that is exact rather than approximate — and the one place gravity does bite.
Notes
All →Every post about AI-assisted coding assumes you can run the test suite in eight seconds. Mine is a forty-kilo machine in a lab down the hall, and half its failure modes only show up on an oscilloscope. The advice does not transfer, and nobody writing the advice seems to have noticed.