Nuna Carseat Adapter for Yeti Kids Water Bottle

Yeti makes a pretty sturdy kids water bottle (the Rambler Jr. 12 oz Kids Water Bottle), but this doesn't fit into the integrated cupholders of the Nuna Rava carseat I have.  

Enter this adapter, which has a OD of 67mm for the cupholder and a ID of 82mm for the water bottle (or 83.5mm in the variant file to accommodate a silicone sleeve for the water bottle I happened to have).  This may work with other car/carseat/stroller cupholders that snugly fit the Camelbak Eddy Kids 14oz Bottle--a bottle seemingly designed to fit almost universally--but I have not tested.

My print settings:

• Creality K1
• Silk PLA
• 0.2mm layers, 5 walls
• 15% adaptive cubic infill
• Supports, no brim
• Roughly 10 hrs with slow settings (45 mm/s), YMMV

I printed this in silk PLA on its side for more interesting color variation and to save support volume, but this left a variety of gnarly surface imperfections from the supports.  If you opt for a shiny material, I recommend printing vertically with all of the relevant supports to preserve the visible surfaces.