Tim Cash

who is building the American Actuator Company and how can i give them my money

@dirtman whats in the box

Rate my new go cart

We’ll have this but for welding within 2 weeks

The base policy is still rough and struggles especially with precision grabbing. But it clearly learned the goal and retried until it succeeded. The second part of the assembly is still a problem. It fails to grab the part, and by then the left arm has already moved forward and blocked access to it, so I stopped deployment. But from the rollouts I’ve done, I’m impressed with how well it learns such a long-context task. It clearly is just a matter of showing it with intervention how to correct errors. Just finished collecting my first intervention-advantage labeled dataset. Retraining soon. Lfg, so much to do. Life is electric anon

Good fun welding again this Sunday. We had a fireman, multiple software engineers, a rainmaker and an aerospace engineer all getting some weld practice in

Welding open mat again tomorrow. Come through

@dirtman 128 GB memory though

Rate @timcash’s uline robot

@zanehengsperger here

best place in LA to open up a manufacturing facility?

i’m spending $500k this summer designing & shipping actuators made in the USA. this is your chance to yell at me weekly and iterate with us, DMs open!

@afshawnl great question. I have been working on some examples based on recent papers. Both are useful. arxiv.org/abs/2511.08058 for example or bivector.net ... really changed how I think about physics and representing geometry.

@timcash how are they different from implicits?

every major CAD product is a UI wrapped around a geometry kernel they don’t own. SolidWorks runs on Parasolid which is owned by Siemens which makes NX which directly competes with SolidWorks.

Lead time for laser cut parts in Detroit is 4 weeks.

@jimbelosic This is amazing ... ordering parts for my robot wheelbarrow now.

CNC machined parts are now 40% off for qty two, 78% off qty 10, and almost 90% off as you approach 250-500 units. The new robots are hauling ass so I can lower prices a bit

The Gundo is our Florence.

It’s happening.

Current workflow 1. LLM agent with label and read/write access to gmail. Acts as filter and router given a set of 10 or so simple conditionals 2. Simple CLI(LLM acting as a CLI) Loop reads and feeds just in time context to a worker. Plan, write test, append new code without changing old code, verify test.c passes 3. prompt.c automates some task

one of the highest leverage things a sensitive young man can do is go visit a factory

NASA has identified soft goods, advanced composites, non-flammable materials, and dust-tolerant soft-sided logistics systems as critical technology gaps for the Moon Base program. The need for advanced textiles goes beyond clothing. It extends to habitats, covering everything from wall panels to storage bags. Nonwovens, felts, webbings, zippers, sewing threads, coatings, finishes, foams, and elastics. A complete soft good is accurately described as an engineered system, often termed "technical soft goods," which blends material science, industrial design, and manufacturing strategy to create durable, high-performance items. Far from simple sewn textiles, these products are designed to perform specific, often demanding functions under pressure. Learn more about how we're building the future of advanced textile manufacturing at anatar.com.

Learn to use Mathematica. Use a LLM and the wolfram CLI to generate images and files.

Watch Overland AI's Autonomous Ground Vehicle ULTRA race through the desert. ULTRA moves across a gap from one trail onto another and then charges forward towards an observation post at the National Training Center in the Mojave. This is real-time (1×) video of Overland’s ground autonomy in action. True off-road navigation with onboard sensing and compute.