Anti-tip base for BWT bestmax PREMIUM S water filter (FS22P00A00)

My BWT bestmax PREMIUM S water filter (type FS22P00A00, 85 mm diameter) is tall and narrow and kept falling over. This base fixes that: the filter drops into a 27 mm deep cup, and a 45-degree flare widens the footprint to 140 mm. Dimensions - Bore 86.2 mm (0.6 mm clearance on an 85 mm filter); the filter slides in by hand, with a chamfer at the mouth to guide it

- Cup depth 27 mm, floor 3 mm, wall 3 mm, total height 30 mm

- Foot 140 mm across

- Closed floor to catch drips

- Four 12 mm x 0.6 mm pockets underneath for self-adhesive rubber feet

Other filter sizes The OpenSCAD file is parametric. Measure your filter and change filter_d (diameter), sleeve_h (cup depth) and foot_d (footprint). Set drain_d to add a drain hole, or feet = false to remove the feet pockets. Print settings (as printed) - PLA+ (Sunlu PLA+ Black), 0.15 mm layers, Prusa CORE One with a 0.4 nozzle

- 3 perimeters, 15% gyroid infill

- No supports, no brim; prints upright as modelled

- About 2 h 45 min and 82 g

It has been printed and tested: the filter fits and no longer tips over. This is not an official BWT product.