A simple modular plant trellis that can be stacked or put together with the included angle connectors. Includes 90°, 70°, 60° and 30° connectors. The connector pins are modeled with some margins, if the print do not fit into the connector holes, carefully shave som silament down with a knive or beveling tool. If it fits perfectly or needs some adjustment depends on your printer and filament. In case the pins are too thin, there are some earlier models included as step files with thicker pins.

Also check out this model https://makerworld.com/en/models/415668#profileId-318122 , it is a nice small decorative lattice which does not meet my use but I think it is pretty :)