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Making our way through Lemons guides on how not to fail tech/safety inspection. It’s fascinating to see how rules get codified to improve safety. A lot comes from existing motorsports standards and if you follow sports like F1, you can clearly see some of the safety improvements like the halo. It’s remarkable to see older…

A core part of Lemons is being able to generate additional budget for non-safety parts of the build, by selling parts from the car. In our case, nearly 50% of the build budget is comes electric motors. By 1987 the 924 had an electric pop-up sunroof, an electric actuated trunk lock, popup headlights and electric…

This ChatGPT o3 diagram below isn’t very helpful. I suspect a lot of this is going to be overcome if current LLMs are used as interfaces to existing design tools that already include a lot of rules and behaviors. That said, Claude (above) seemed to have better grasp on circuit logic as the image below…

One of the areas we’ve been playing with is “text to CAD” or “text to surface” with tools like Meshy or AdamCAD. Working with teams like Cove Architectures, gives a sense for why this might be hard. It’s one thing to get a great looking rendering, but it’s something else to get accurate surfaces and…

The safety cage is the one thing we decided not to DIY. First, there is a tech/safety inspection to pass and the longest, most detailed section deals with details of the cage including use of force spreading plates, gussets, etc. Cages are designed for highest frequency crash situations – sure there is a small possibility…