Flat base for Death x Tiles terrain

I decided to share my solution for holding DxT tiles in place, that doesn't require glueing another 9.7mm block with multiple magnets under each tile.
It's simple 2 mm plate for 2x2, 3x2 or 3x3 tiles with dovetail locks that uses same "X" patern as their elevation tiles and even without magnets those tiles aren't going anywhere.
This solution also allows for sliding whole map from cartboard box onto the table so I can prepare the map beforehand and reveal it as a surprise for my players at the beginning of an encounter.
Update 2025-03-29: Remodeled into proper stl from previous dirty .3mf. Added 2x2 and 3x3 variants.