I created this adapter so I could hook other 28mm thread devices to my Nalgene bottle.
There are both Male and Female 28mm thread adapters.
I printed these using 1.6 Dynamic and it gave it a nice smooth finish.
Supports are set at 65 degrees. It will give a nice break off in the middle in the cap when finished.
I printed with PLA+ using an Ender 3 V2 and Qidi X-one2 with great success.
Let me know what you think, I can adjust it as needed.
The author remixed this model.
Thank you to the original creator of the Sawyer to Nalgene adapter, I used the Nalgene narrow mouth threads and created the adapter for 28mm threads/devices.