10th Doctor Sonic Screwdriver (Revision)

For Christmas I wanted to print a 10th Doctor screwdriver for a friend of mine, but had a couple issues with the one I found here on Thingiverse. Some parts refused to slice/print (it looks like this has since been fixed in the original object), and some parts of the assembly seemed unnecessarily tricky. I came up with this revision over the course of a couple hours and thought my changes may be of interest to some.

The major changes are:
+ Complete redesign of internal slider, now slices an