This is the one Multiboard unit wider version of my 4x3 shelf. This is the 5x3 Multiboard Multigrid Baseplate Shelf. Note, this model DOES throw warning in the splicer. I am not proficient in CAD so I'm pretty sure I resized things weird which is why it complains BUT it does print just fine (for me at least).
This model is very wide and take up the full width on my P1S, thus something like a Bambu A1 mini will NOT be able to print this.
I was in need of a simple yet elegant shelf but with the support of the Multiboard Multigrid baseplate. Sadly, there were only small shelves as well as Multigrid baseplates. The shelves weren't the same size (small only) where as the baseplates only were themselves. Thus I spliced the two together.
PLA and PTEG seem to print this fine. Though the Carbon Fiber (-CF) filaments seem to have problems with the edge overhangs so I recommend avoiding those.