Really great design. I'm building a CNC machine and was searching for a good way to mount a Dremel 4000. This seems to fit the bill. The threads fit perfectly. Many thanks for the file.
I printed this at 75% infill to beef it up. Feels pretty heavy. The print took all night, or say around 12 hours. It was printed vertically and some of the small holes had a tiny bit of stringing because I didn't use any supports.