New Lower Steering Column Bearing Kit (in development)
So are you selling printed parts, or are you going to have them manufactured?
Because that square boss is going to be a b**** to machine if you're machining that in metal. Even as a cast part that would kinda suck.
You could make your threaded hole for your set screw be there, and use the shank of a screw to locate the collar in the sleeve, and would turn that part into an easily turned metal part with no wonky square locating boss.
If that makes sense and I understand it correctly.