here is my version of Gridfinity stuff for stuffing stuff inspired by ZackFreedman https://thangs.com/designer/ZackFreedman the creator of the Gridfinity System that we all love.

Find more Gridfinity accessories at https://bit.ly/3E2NxnZ

this model is fully parametric, you can find the customizable Fusion file in the download all attachment, if you can't use Fusion feel free to ask for custom dimensions in the comments and i will upload you a stl.

I've also uploaded a square and rectangular version of this model: https://social.thangs.com/m/629906

the model supports both round and elliptical holder and it is possible to configure 4 indents in the collar to facilitate the grubbing of the item, all is done in the change parameter window in Fusion

waiting to see pictures of your versions uploaded here. happy printing