planter mold with added rim for the inner part

thingiverse

I added a rim for the inner part to allow it to stay centered and keep it from floating up. It's going to add some rigidity to that part, so it's probably be unnecessary to print that part with the bottom, you could just print the walls with the rim It's probably not ready for printing, but you can get the idea from the 3d file and add the rim for your own projects