These models are for a chicken waterer for standard-mouth (some refer as small-mouth) and wide-mouth canning jars (pint, quart, 1/2 gallon).  These could also be used for other small pets. These work best when raising chicks during their first 3 months or so of life. I used a ½ gallon wide-mouth jar which provided sufficient water for my 8 chicks. Quart jars also work well. Pint jars will work but probably don't hold a sufficient amount of water unless you only have 1 or 2 chicks. I continued to use when the chickens got older but changed out for a 15-gallon system with PVC and water cups so that I didn't have to fill or clean as often. I've printed in both PLA and PETG however most filament types will work well. 4 or more wall loops will ensure the jar threads don't break away when tightening jar. A tight seal of the Jar to the Waterer is not required or recommended and will work as intended if only finger tight.

If you don't have canning jars, Goodwill usually has individual quart sized jars for cheap. Also, Classico spaghetti jars work with the small-mouth model. 

05/24/2025: I added a print profile for a larger 1-gallon jar or similar in size container that has a 110-400 neck size.  Besides the 1-gallon glass jar, many of the large plastic containers have the same size neck opening; 110 mm to outside of threads on neck, 5 Threads-per-inch. My photo uses a plastic energy drink container from Costco. The 62oz M&M's container from Costco also has the same neck size. I've also included with the profile an optional riser that lifts the Waterer about 2 inches (50 mm).

7/16/2025:  I added optional 25mm and 50mm tall Risers to raise the waterer up approximately 25mm (1 inch) or 50mm (2 inch). The Waterer simply sets into these Risers. Additional heights can be obtained by simply adjusting the z-axis scaling in your Slicer (Bambu Studio)

You probably also need a feeder for your little chicks.  Check out my Feeder design:

   Chick Feeder by JC58 - MakerWorld

 Cat or Small Animal Waterer by JC58 MakerWorld: Download Free 3D Models

Quail / Small Bird Waterer - Free 3D Print Model - MakerWorld