Topology optimized shelf brackets. Use them myself work perfectly. The idea is from Thomas Sanladerer , https://www.youtube.com/watch?v=3smr5CEdksc
This design is generated by Solidworks topology optimization, by minimizing the giving some force.
I printed them without support, but it is not an easy print, so maybe support can be useful.
Boekenplank_v6.STL | 1.3MB |