This is a cap to build a "worm tower" - a small wormiculture composter directly in your garden beds. You can learn more how to build and use the tower in this video: https://www.youtube.com/watch?v=qJ7lNsCmCrg

The provided STL files are for a DN110 HT pipe (110mm outer diameter), but you can easily adjust the dimensions to fit any size of pipe using the provided .scad file.

The lid is meant to have a piece of fly screen added. It should simply press fit using the provided ring.

Sources are available at https://github.com/splitbrain/openscad-projects/tree/master/wormcap