About this 3D model

This is a concrete tray mold for my concrete pots. You need flexible filament for this. Print the mold with flexible material. Use some pettroleum jelly (vaseline) on the sufaces of mold. Seal edges of the mold. Mix concreate and water, then pour into the mold. Tap the mold gently to remove air bubbles. Cure concrete 1~2 days and remove the mold.