About this 3D model

I had a few Harbor Freight casters laying around from another project and decided to model a small adapter to add them to the filament rack. I used 3D Gloop to glue them into the dowel hole on the bottom and self tapping screws to attach the casters to the block. This is NOT a glamorous solution but it works and its just a filament rack so im ok with it. These are the casters i used