Entry dome for Lars homestead, designed to be slightly buried. 2 stair pins can be used to align the stairs to the main dome and then glued. I used basic decorators filler to add texture to my print and then painted it. No support was needed.
You should be aware these files are an absolute mess! I have got them all to slice in PrusaSlicer but can't say for others slicers. If you want to modify them you would probably be better to just start afresh.
This is part of a larger project where I built Lars homestead as a backdrop for photos of a Lego landspeeder. The other parts of the project can be found below:
Workshop top - https://www.prusaprinters.org/prints/98118-workshop-top-lars-homestead
Droids - https://www.prusaprinters.org/prints/98160-eg-6-and-wed-15-droids-lars-homestead
Vaporators - https://www.prusaprinters.org/prints/98157-vaporators-lars-homestead
Assorted props - https://www.prusaprinters.org/prints/98303-mixed-props-lars-homestead
The pit - https://www.prusaprinters.org/prints/98353-the-pit-lars-homestead
Key ring - https://www.prusaprinters.org/prints/98203-stormtrooper-keyring
Project video -
The author hasn't provided the model origin yet.