I remixed the modular tower from [https://www.thingiverse.com/thing:3405964](https://www.thingiverse.com/thing:3405964) and combined it with the improved locking ring from [https://www.thingiverse.com/thing:4965368/files.](https://www.thingiverse.com/thing:4965368/files.) For the lid to the 5 gallon Lowes bucket, I used [https://www.thingiverse.com/thing:4580194](https://www.thingiverse.com/thing:4580194)  I need the tower to be as stable as possible since it was going to an elementary school for kids to grow their own plants. 

I used 4 walls with 25% infill. everything came out nicely. I believe an Ender 3 can fit all the parts on it. I am not sure about the planter section but everything will fit.