I have an stl file of handmade swivel ring from an animatronic that needs to be cleaned up. It was scanned with Qlone on an iphone. The pins sticking out each side need to be 2/1000 of an inch smaller than 5/16" and need to be clean cylinders, not the tapered and distorted mess that they are. The rest of the surfaces need to be smoothed. 4 holes need to be added. The first 2 are for #2 screws. I will provide info on their placement later. The other 2 will be hand threaded for 10-24 threads after printing. They are placed at right angles to the cylinders. This project may not be duplicated or shared.