Funnel with soda bottle thread

thingiverse

I designed this unique funnel specifically for filling a soda bottle with bird seeds for the Big Bird Bottle Feeder, which can be found on Thingiverse under number 1710755. The conventional funnel struggled due to clogged seeds, but this one has a maximum size opening that allows the seeds to fall through easily. Its large size also makes it easy to hit and pour into the feeder.