Architectural Planter Pot

This is a planter pot I drew up based on something I saw on Pinterest. I didn't intend to print it; just to use it as a basis for making a concrete mould. It's 140mm at it's widest, so maybe scale to suit your printer. Included is the Sketchup file if you wish to remix.

Update (15-12-18)
I have included a revision with draft, designed to work with a small vacuum moulder. It is slightly smaller and has larger steps to help with crumbling I experienced with my cement versions.

Update (18-12