Filament Shelf reinforce bracket

Designed to hold my filament shelf together so the two wooden rails won't split under the weight of all filament rolls.

The design is in OnShape, you can make a copy and adjust the size to your needs. Link here:
https://cad.onshape.com/documents/e3c8009b43c3e28dd4f85e35/w/6c7f73ee14f3393379d1ec1d/e/cd0ba30d0f7f8e5ef780d418