We have a Gaggia Classic Pro and a Rok manual espresso. I wanted a single tamper that I could use for both.

Just flip it to either side you need and tamp away. I attempted this first with PLA and PLA+ with no success. The pre heated portafilter, or on the second pull is just too hot and melts it. Use PETG.

I used SUNLU Super Neat PETG 1.75mm filament. Have used it daily for 9 months with no deformation or heat issues at all.

Amazon link

Print Settings:

Anycubic Vyper

Prusa Slicer

PETG

0.25mm layer

Infill: 20% - Gyroid fill

Print with the 50mm (smaller opening) on the bottom.

See settings screen captures below for settings.