Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2954280.

A friend was asking me about printing and as i was explaining it she mentioned that her shower door guide had broken and she was unable to find a replacement. She brought over the broken guide and I modelled it as closely as I could and it worked perfectly.

To print this I used PET-G for the filament with default settings in Slic3r prusa edition and I did print with supports. The top surface does slope but that matches the original part exactly.

This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/eQYTX7Xh6uJ