Stackable Dungeon-style Miniature Stand remix 30-40-50mm

I've edit this file to make base for my 30-40-50mm (for Wrath of Kings). I did it with blender but as I'm not good enough with it, I've just add the hole for the 40 and 50mm on the 30mm....

Note : I print it at 103% so that the figurines can be easely put and remove.