Adding 1911 Barrel Bushing by Daviot.

Pistols/1911-Barrel_Bushing-Daviot/README.md

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+# 1911 Barrel Bushing
+
+#### Author
+Daviot (Alex Putnam)
+
+#### Description
+A milspec/standard barrel bushing for the M1911A1 pistol, based on engineering drawings.  Fit tested in a Para 14.45.
+
+Ever since seeing the 3d printed bushing wrench, I thought it needed a 3d printed -bushing to go with it.  Similar designs existed, but were geared towards Airsoft replicas and were .stl meshes with no originating models.
+
+#### Printing
+Due to high impact stresses, if making a functional part, use 100% infill with a durable plastic (ABS, nylon, PETG/polyester).
+
+#### License
+As this is a digital copy of a design that's from 1924, the part itself is entirely in the public domain.  Furthermore, all digital documentation and photographs are hereby released into the public domain.
+
+To the extent possible under law, I hereby waived all copyright and related or neighboring rights to this design, as per the Creative Commons Zero License.