Thanks for the great model!
Pots are in 3 sizes: 120%, 125% with elongation in the z direction of 170%, and the biggest one is 180%. So far I've made 15 pots! I've used the white and blue one about 9 times, but the locking tabs are starting to fall off. Is there something about the basic pH of concrete that degrades PLA and makes it brittle? I've also tried printing a mold with PETG, and it's holding up better.
I've been printing PLA inner molds, and I've been able to re-use 3 of them. Right now I'm trying to print a flexible filament inner mold for the 125% x 170% size. I'm planning on stuffing some empty grocery bags in there to keep the walls from collapsing. Fingers crossed!