Holder for a IKEA Billy shelf on a IKEA Vangsta table (or any 75cm table)

Reused IKEA Billy shelfs and get extra space in your kictack by adding it to any 75cm table, I designed it for IKEA Vangstad but it would fit any table of 75cm size. 
I printed it using 15% infile and it is a little bit bit wobbly. If I reprint it I might update the model ti make it a bit sturdier and maybe print with more infill, but as of now it solved my current organizing problems.

The scruw holes is 4.2mm and any wood that fit that and don't go all the way trough the Billy shelf should work. I placed them under to not hold the weight and mostly just protect the shelf from to sliding off. 

Left/Right side files are just mirrored and have no additional things on any of them.

Model, please update and reshare if you like :)
https://cad.onshape.com/documents/db2efa48eddcc1a70f0b5b71/w/95fcbff7c20d8a776431a619/e/981bce39eac21035f546b3a5?renderMode=0&uiState=6768162a593bf9610b56ced2