Corner Trim 45 Degree - 305mm x 1.5mm x 100mm
thingiverse
In my camper / travel trailer, the bathroom door sits at a 45* angle to the rest of the walls. When replacing the wall board, due to rotting, I needed some corner trim. The closest I could find at Lowes was about $50 for an 8' stick and it wouldn't be here for 2 weeks. These are 12" sections, you could make them longer or shorter if you want. A belt printer could actually print an 8 footer, but I don't have one, so I had to glue them together myself. It looks okay, certainly much better than nothing, and printed for about $1.00 Each side is almost 2" wide, so if you want it smaller, you can edit the STEP file in Fusion 360.
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