Resized LM8UU bearing in PLA to fit RepRap machine

As people have pointed out in the comments on the original part, the diameter of the barrel on this bearing is 15.7mm when it should be 15.0mm for a RepRap machine and probably many others. I loaded the original STL file in OpenSCAD and trimmed some off the diameter, also adding a slight bevel to the ends just like the original metal bearings. Because this thinned the internal walls down a bit, I've also decreased the internal diameter for the fins, but retained the 8mm diameter for the rod co