Steamer knob for Krups espresso coffee machine Type 963

Krups includes steamer knobs on espresso makers. Eventually, they can fatigue and break. This is a replacement for a steamer knob that works on at least model type 963.

Because steam is at a temperature higher than the glass-transition temperature of PETG, it is essential NOT to use PETG, but rather to use a higher-temp filament like ASA.

Version 1.0 goes on very nicely, but over time becomes a slip fit.

Version 1.1 has tighter press fit and longer shaft engagement. Goes on for full engagement when warm from use.