Gardyn 5-gallon bucket twistable lid adaptor
thingiverse
Base that fits Gardyn columns or column replacements seen here: https://www.thingiverse.com/thing:5318365 To implement, I made a small slice in the plastic, used a heat gun to slightly melt the area, and then used the "Cone for making the hole" stl to widen the hole in a pretty way. I also trimmed the sides going down lightly with a Dremel. This could also be adapted for other five gallon bucket lids, but you would probably need to screw or glue this in somehow to get it to stay with the weight of the columns. If your printer doesn't have a big enough workspace, you could just cut off the extending cross pieces to fit your needs.
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