These are 1x2 gridfinity baseplates. There is one flat one and the rest are at angles, in 5º increments up to 20º. This can help accommodate a leaning surface, or it can point the gridfinity module at an angle. For example, this lets gravity collect things on one side of a module, or makes it easier to look inside, etc.
These are minimalist baseplates.
If you reslice these, I recommend:
This is one of three angle baseplate models. The other two are:
Based on the Gridfinity System from Zack Freedman: https://thangs.com/designer/ZackFreedman
https://www.youtube.com/c/ZackFreedman
License: CC BY-NC-SA 4.0 https://creativecommons.org/licenses/by-nc-sa/4.0/
#gridfinity
The author marked this model as their own original creation.