The author remixed this model.
I downsized just the diameter of Tech Wave's v2 model by adding a cylinder of 29mm to fill the hole and another one to subtract a 23mm diameter .. also positioned them to keep the round cutoffs.
My 3mf has 2 models and it has an error, I'm new to 3d print and I could not merge the objects so they are overlapping but I was able to print it and use a deburring tool to finish the model.