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Adapter that lets oversized water bottles sit in a standard car cup holder, with straight/slight/high taper presets.
Diameter of the bottle at its bottom (the narrowest point for tapered bottles like Owala).
Bottle profile preset: straight (0°, Yeti/Hydro Flask), slight (4°, most reusable bottles), high (8°, Owala/contoured fitness bottles).
Inner diameter of the car cup holder. Common range: 70-82 mm for US cars.
How tall the upper section that holds the bottle is.
Depth of the cup holder — how tall the lower (cup-holder-fitting) section is.
Wall thickness throughout.
Closed floor at the bottom for print-bed adhesion. Set 0 for an open sleeve.
Per-side gap between the bottle and the cavity wall.
Per-side gap between the adapter outer and the cup holder wall — FDM tolerance plus easy insertion.
When true, cuts a rectangular notch into one side of the bottle section so a bottle's carry strap or handle can pass through.
Width of the handle cutout (tangent to the bottle section).
How far down from the top edge the handle cutout extends.
