Bfayer's insert design is awesome, but not quite the right size for my table/umbrella, so I scaled the original to fit my table, and then expanded the center hole to fit my (metal) umbrella shaft.

Tinkercad model is public - help yourself: https://www.tinkercad.com/things/4Gu2v6PahnI-patio-table-insert-remix/editv2

MK3

Prusa i3

No

No

80%