About this 3D model

My rear speakers attach from the bottom so wouldn't go on top of the speaker stands. I used the tannoy wall adaptors and made my own adaptor to attach to the stands. I added a hole for a screw to hold them in place but gravity takes care of that, no screw is needed. EDIT: I made a better bracket here: https://makerworld.com/en/models/1993256-tannoy-speaker-mounts#profileId-2145256