Replacement part for Ridgid part 825548 (Wear Plate) for Oscillating Edge Belt / Spindle Sander
You can just buy it for $1.30 here with $6 shipping: PLATE WEAR (ordertree.com)
(I don't remember the print orientation I used and I don't want to disassemble to tool to find it or take a picture. Sorry)
The author hasn't provided the model origin yet.