Pet transport cage hinge / door knob

Our dog tranport cage's knobs were badly chewed up - so I designed a replica.

Note, I warmed the piece with heatgun, to give it more flexibility before inserting.

I will try to print the thing sidewise - then heatgun is not needed, but supports are needed and should need also a little cleanup by file.

UPDATE: I printed sidewise leaver up, that was ok, this way the part is stronger and flexes without breaking.

v5 has modified slot for better flexibility.