This is a camper window lock replacement.
printed from TPU
I got the best result with the support when I rotated the thing by 90 degree as seen on the screenshot of slic3r image.
You can change szarHossz parameter in openscad file to adjust the lengt to your needs.
I uploaded a 10.5, 12mm, 14mm length stl.
I uploaded a knob for the rubber thing, I printed the know from PETG, with support. I placed the pipe part down when printing.