Have a nice day ;)
This is a Remix of https://www.thingiverse.com/thing:1074129.
UPDATE 2022/08/23:
I gently enlarged the locking elements - file "Buckle male v1.1.stl"
Now on the PLA sample (20% infill), it goes in hard and holds tight.
UPDATE 2023/02/22
v 1.2 - Better fit of the model and improved a few details
print with support
Buckle_female_v1.2.stl | 222.5KB | |
Buckle_male_v1.2.stl | 710.8KB |