WDT Espresso Tool

This is a WDT tool I made after seeing the relatively few options out there. I had printed off this tool, https://www.thingiverse.com/thing:4573913 which was sort of a design inspiration. I did all my own design from scratch for this, however.

I wanted to have 8 total needles, a circular array of seven and one in the middle. Additionally, I wanted knurling on the cap in order to be able to remove the cap easier, a different cap in order to hold the needles down better, and a threaded case so this could go in a barista's bag or in a drawer without risking a hand or the needles of the tool itself.

The knurling patterns are all different, as I used this design as an excuse to learn how to do knurling myself. The threads are all coarse 1/2-13 threads, in order to better facilitate mating & support less fine 3D printers.

I printed all the parts in one go on my Prusa MK3S, 0.2mm layer height, 10% gyroid infill, with 3 perimeter walls in PLA with no supports.

Potentially, the nee