Summary

Have one of those structural steel poles in your basement? Want to mount a TV to it? I did! So I designed this VESA mount bracket that perfectly snaps around the post and holds it snug enough to stay put but loose enough to rotate and slide the TV for height and rotation adjustment. Use at your own risk of course--I would not put a heavy television up with this. I installed mine in halves because I was rushing to test the prototype--I strongly advise against doing the same.

I suggest printing in PETG with 100% infill, and I recommend printing in the orientation that the STL file opens, with supports. If you change the orientation to lie on its back, you will end up stretching around the pole in alignment with the layer seams, which I suspect would cause it to break.