Parametric curved tray.

thingiverse

This program generates parametric curved trays with the image centered on the tray when using default SCAD file settings. Semicircular designs up to approximately 75% of a full circle are achievable. This script creates STL files for 3D printing in Vase mode, where 'Length of outside edge' denotes arc length along the exterior edge of the part, best measured with a flexible ruler. If your slicer lacks vase mode, try specifying one bottom layer, no top layers, one perimeter, and no infill for successful printing.