This is a threaded container I wanted for easy, cool battery storage. It holds 4 AA batteries.

HOW TO PRINT PROPERLY!!!!! PLEASE READ OR IT WILL NOT WORK!!!

The container.stl file is ready to print. No supports. Just your default settings.

The lid.stl file involves custom supports. The normal line support type works best. Set your supports to be everywhere. Then you need to click the support blocker button and then click the model. SEE SCREENSHOT! Make sure you have the model selected or the button won't be clickable. Resize this to cover the wide cylinder between the handle and the battery holder. You need to leave a tiny tiny bit of room to make sure the handle has supports. SEE SCREENSHOTS!!!! Then slice and go to preview. Make sure there are no supports in the threaded area and print.

When it first prints it will be hard to twist on the lid. Press it against the container part and turn until it starts to twist on. Do this until it gets too hard. Untwist and repeat until it twists all the way on. Eventually, it will be smooth.

I printed on a Neptune 3 Plus and it worked perfectly.

If you don't have a multicolor printer like me. You can pause the print when it gets right above the threaded part and change filaments. That's how I got the silver colored part.

Original model at thangs.com: https://social.thangs.com/m/1090627