11th Doctors Sonic Screwdriver (season 7-8 variant) CNC Kit

This is the 11th doctors sonic screwdriver as used by Matt Smith and Peter Capaldi. I have provided the reference images I used (from series 7-8). This replica is not based on one of the individual props used at the time, but rather takes elements from several of them to create an idealized version.
These parts are intended to be CNCed from aluminum, copper, and brass (hence I have provided them in STEP file format). I will be providing STL files in the near future.
This replica is intended to be flickable. I believe that enough internal space has been provided for electronics however, if this doesn't seem tom be the case let me know.
Please refer to https://thumris.com/screwdriver-v11/ for assembly instructions and some brilliant insight into how the model should work. (Disclaimer: I have not made copies of the parts described by Thumris on their website, but rather have used their guide as a reference for how serval of the parts should connect and function).

WARNING
As of posting this, this model has not been made and tested. This (combined with my lack of engineering knowledge) of course means that tolerance for sliding and connecting parts is likely to be slightly too loose or tight in places, so please don't dive into getting these parts made before examining, understanding, and maybe tweaking the model. In addition to this, I had no idea how to accommodate leather and stitching for the handle piece so I have left it quite undetailed. Two versions of this piece are included (one is to replicate the full width of the handle as if it had leather and the other one is slightly thinner to accommodate the thickness of leather on top. I would be very grateful if people could leave comments for suggestions and improvements and I will make sure to update the files as quick as I can.

Also note, grub screws and springs will need to be sourced separately.