Codex AI : Visual Studio : Toy Car : Python Script Modeling. (TEST)

 Rolling Toy Car (Codex Test)

Very simple prompt (a shit ton of python helper filess and skill.md adaptations) using Codex in 
Visual studio Code.  Prompt "Design a Toy Car with Rolling Wheels"

All the pics, boms, explodied view, instuctions, descriptins were built with ai.  I never had to enter CadQuerry, Blender or Printables,  The SKill.md picks a gaggle of python scripts that do the checks, smoke tests, allignments... all in the back ground.  Its completely automated.  It kicked out the files.  I draged and droped them to printables.  EVERYTHING is automated.  

A compact, four-wheel toy car with two free-turning axle assemblies captured in split bearing grooves. Each axle carries an integral left/right wheel pair, so the wheels roll with the car without loose wheel pins or glue.

## What You Need

- Four printed parts: upper body, lower bearing plate, front axle/wheel pair, and rear axle/wheel pair.
- Four M3 x 16 mm pan-head plastic self-tapping screws. Use screws with heads no larger than 6.0 mm diameter and 2.4 mm tall. Length is measured from under the head.
- PETG is the current starting material. The exported 3MF contains all four separate parts, arranged on a Prusa CORE One 250 x 220 mm plate.

See [BOM.md](BOM.md) for quantities and fit notes.
The exploded view at renders/rolling_toy_car_exploded.png shows the four printed parts and the required screws.

## Printing

Load exports/rolling_toy_car_print_plate.3mf in PrusaSlicer. It contains four independent objects, not a fused assembly. The provided plate was sliced with the Prusa CORE One HF0.4, 0.20 mm STRUCTURAL, and Generic PETG presets. Re-select your actual filament/profile before printing. The bearing clearance is a starting value; print a fit coupon first if your machine/material combination has not been calibrated.

## Assembly

1. Place the upper body upside down with its bearing grooves facing up.
2. Set the front and rear axle/wheel assemblies into the matching grooves. Keep each axle aligned with its pair of wheel arches.
3. Place the lower bearing plate over both axles so its grooves close the bearings.
4. Install the four M3 x 16 mm screws through the plate into the body pilots. Tighten only until the plate is seated; overtightening can strip the plastic pilots or clamp the axles.
5. Spin both axles by hand. They should turn freely without scraping the body or plate. If they bind, loosen the screws slightly and check the bearing coupon/clearance before modifying the model.

## Design Notes

The front wheels share one axle and the rear wheels share another; left/right wheels are mechanically coupled. The axles passed eight sampled rotational clearance checks in the CAD assembly. Those checks do not prove impact strength, wear life, or real-world rolling quality. Small screws and printed parts are not suitable for children under three years.

Besides the printed parts, you'll need:

- 4 M3 x 16 mm pan-head plastic self-tapping screws (head max. 6.0 mm diameter and 2.4 mm tall).