I built my travel trailer from the ground up using 2020 Aluminum extrusion and needed a way to cover the slots after mounting the cupboard doors.

This model can be resized in Bambu Studio or Orca Slicer by Adjusting the Z Scale but be sure to turn off uniform scaling before you do. It has been printed using TPU 95A from Bambu Labs and works great. Takes some work to push it into the slots but definitely stays in tight afterwards.