This is an attachment to turn a 5 gallon bucket (or any container) into a chicken feeder. You will need a 5 gallon bucket (or any container), a bucket lid, a 3" (75mm) hole drill bit (or a utility knife and some extremely careful creativity). From experience I would also suggest a cinder block to set the bucket on to lift it off of the ground. If this sounds tedious, it is well worth the time and effort. You can fit half a 25lb sack of feed in one bucket, and with multiple feeding holes you don't need more than one bucket for a moderately sized flock. I have 1 bucket for 7 chickens and refill it biweekly.

Supports: yes (use 'support touching build plate only'. Internal support is not needed.

Raft: yes

Resolution: .2 (standard)

Infill: 20%

Material: any (if in the sun, use a UV stable material)

Notes: print this longways with the cutout facing up. If you print this standing it standing (to reduce supports) the strand orientation will be too weak and it will break when you try to screw it together. The OP suggests printing with a raft using 10% support. Some users have noted that V2 has sizing and thread issues, so it's probably best to stick to V3. You can and should put multiple of these per bucket. The 'lip' on the outside piece is to be installed facing up, and keeps rain from ruining your feed. The commercial versions of this usually have a rubber gasket, I don't think that it is required, but if you have issues with water getting in your bucket, try putting some silicone or caulking between the bucket and this feeder.

This is the DIY Chicken Feeder by fillercustoms initially posted at www.thingiverse.com/thing:5958831 OP has made 3 iterations of this and still has it open source/not monetized. He truly deserves credit for both the work and his dedication to to open source community.