Multiboard?

[Tins]

Anyone tried this? Looks quite interesting.

Mini Multiboard — Multiboard (https://www.multiboard.io/mini-multiboard)

[Tombie]

Very similar to gridfinity

[Tins]

Very similar to gridfinity

Which I had never heard of before I saw Multiboard....

[Tins]

First time I have encountered "stacked printing". Given the small build plate on my printer it's a good thing, and it works quite well.