This is remixe of @addohm_141025's Wall mounted build plate holder.
I modified it for 355mm and 350mm build plates.
There are two versions. V2 have more stability but needs some more filament.
CAD at onshape
https://cad.onshape.com/documents/f445e5e5d81ae57ecda20864/w/1e3e6e30cd0a745a6ce234e9/e/29110841669464064d9d44ec
Please don't forget to give me a Like. :)
The author remixed this model.
Remixe for 355mm and 350mm build plates. Improved length and height.