This is a remix of the Darth Vader light saber wall mount by Tron. I have the original build Luke Saber and required that it match the Vader mount.
For strength, I made this in two parts to ensure the layer lines where at their strongest. You will require 2 x 3mm by at least 12mm countersunk bolts.
I would recommend 4 walls and 20 to 25% infill to ensure that the part is strong.