Screw-ring for Philips CP1982/01 blender blade

EDIT: I'll leave this up here for posterity, but after uploading I found this design, which is actually much better. So I recommend printing that instead my design.

Philips' CP1982/01 is a blade used in several of their high-speed blender products. The blade comes with a ring used to screw it onto the bottom of the glass blender-pitcher or the top of the plastic blender-cup. Unfortunately this ring is prone to cracking and the repair requires you to buy a full set of blades since the ring is not sold separately (if you can find the part to begin with, as it's perpetually out of stock). 

To avoid the expense of having to buy a completely new set of blades each time, and the hassle of finding it for sale in the first place, I created this model, which seems to work fine. 

The walls are only 2 mm thick, so I've printed it in PETG since I suspect PLA is too brittle and would quickly break. No idea how long this one will last. Probably not as long as the original, but at least this one I can print in an hour for less than €1 worth of filament.

This needs to be printed with supports which can be tricky to remove. Maybe tree-supports would be easier, I didn't try.