Just a simple tray designed for my specific layout of printer to allow the purge waste to fall without getting stuck, but still being able to remove it with how my machine is setup. It has rounded edges and a 5mm taper inwards from top to bottom.

1.6mm walls so a simple 2 wall, 3 top, 3 bottom will work well.

2hrs20min print time, 142g of filament.

Make adjustments to size by scaling in your slicer.

No supports required.