upright bicycle component 3d model

3d printing 3d printing realistic assembly axle machine machine 3d printing machine 3d printing realistic machine realistic realistic

Prompt

Generate a 3D CAD model of a REPURPOSED UPRIGHT BICYCLE sub-assembly only — no mixer drum, no support frame. This will be imported and aligned with a separate mixer assembly in AutoCAD. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ COORDINATE ORIGIN & ORIENTATION ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ World origin (0,0,0) : Centre of the bottom bracket (pedal crank axle) X-axis : Runs along the bicycle's longitudinal axis (front to back) Y-axis : Runs laterally left to right Z-axis : Runs vertically upward All dimensions : In millimetres (mm) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ COMPONENT 1 — BOTTOM BRACKET (Power input) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Position : World origin (0, 0, 0) Shape : Hollow cylinder Outer dia : 34 mm Inner dia : 24 mm (axle bore) Width : 68 mm (along Y-axis) Material : Steel, silver finish Note : This is the DRIVER SPROCKET mounting

4K·v3.1-20260211

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