1 Inch Platforms - Starfinder 28mm Game Idea

So Had the idea that I wanted to be able to elevate characters on a map to show flying ect... Secondly I am working on a clip system so we can join them up to make stairs and platforms etc.

EDIT 15-Aug-2017: Updated the STL files, the base one was not working like i wanted, and I reduced the hole size slightly so it fits a 8mm rod snugly. Fairly happy now. I made a connector piece so you can link 3 in a row, but it was just terrible.

Still working on it and looking for feedback if anyone