strong table leg connectors
thingiverse
What I used : 1x 12mm Plywood sheet 4x 23.5mm diameter wooden dowels (broomsticks) 24x M4*16mm screws 24x M4 nuts (normal ones, not self-locking!) https://www.youtube.com/watch?v=ScFRVoTGsgs&ab_channel=MakerMind
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