a bird feeder
There are two parts, you don`t need any support.
There is a simple closing system to put the two parts together and fill and refill the feeder
06.26.20 update:
I add a new base file(no_column).
I improved some details, so it should be easy to print with all materials.
08:25.20 update:
I improved some details on the original basefile(..base11.fin.stl)

• how I print the birdhouse_base_11 _fin file:

with PLA it should be no problem
with PETG(I use Prusament PETG clear): If the columns start to branch out I slow down the speed to 50%; shortly before the bridging starts I slow down the print speed to 30%.
After I saw the bridging was done I rise the speed back to 100%