Hack Pack Sand Garden Base

“Sand Garden Bowl Combined” can replace the entire bowl, or the split design can be used to have more manageable print times and is designed to sandwich the silicone mat between the two pieces to maintain a good seal and a white grippy bottom for the ball to roll on.

“Split Top Option 1” was designed to save plastic and reduce print time, “Split Top Option 2” was designed to keep the laser cut wood ring on top and allow some kind of clear window to be added as well, but I don't have access to a laser cutter at the moment to make one.

“Split Bottom” is 2mm thick, but I ended up scaling it down in the Z direction to 1.2mm thick and it still works well. But if you want to make absolutely sure that it stays flat, stick with 2mm.