Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3170827.

this is a snap together hub system for constructing a dome or sphere or other thing.

it consists of 2 main pieces that connect together with more of the same.

i made circular indents in the bottom so it is less confusing to assemble. after assembly it will bend in placing the circular indents on the bottom (towards the inside of the dome).

these needs no supports. place flat side down.

it can be made for a 3 truncated hex/pents) or 5 (pentagon) or 6 (hexagon) or any number of sides.

i suggest abs, as pla tended to crack when connecting these together.

i included a stp/step file so that it can be modified easily.