2-Part Plastic Sleeve for Table Umbrella

This is a 2-part sleeve to fit around the shaft of a table umbrella, because otherwise it might move with the wind and bang against the wall of the through-hole.  I designed this for my circumstances:

• Table hole diameter = 50 mm
• Umbrella shaft diameter = 38.6 mm

The sleeve is in two parts.  You simply drop the parts on opposite sides of the shaft. It's not a tight fit – it's meant to be easy and quick to insert and remove – but it restricts almost all of the wobbling motion.

The print is very straightforward: .30 mm layer height, 20% infill, no brim or support necessary.  I used inexpensive Inland PLA, it should be fine with anything you have on hand.