About this 3D model

I liked the one from matbechtel (https://www.thingiverse.com/thing:270704) but that one has the old logo. So I decided to change that. Compared with the original: The base is changed to only one solid shape There are two kinds of coasters: Normal and inversed The height of the coasters is lower so that eight coasters can be stacked into the base and of course: the new logo One small thing: There is a small mess in the stl's but cura has no problems to slice it. It only shows a warning... Have fun!