Case Pinecil/TS100/TS101/TS80/TS80p - Stand cải tiến (M3 insert, finger pull)

I had a few issues with the existing version of the stand for @termiman's and @PjotrStrog's soldering iron cases. The stand was a loose fit in the case when stored, causing it to fall out, and it was slightly fiddly to remove. The stand also has a slot for a nut, which seemingly doesn't fit an m3 screw and requires different hardware to @PjotrStrog's case (m4 I believe).

This remix fixes those issues - with the addition of a heat-set insert in replacement of the nut for securing the bearing, a finger pull for easier removal and a slightly thicker stem (+1mm) for a tighter (but still easy to remove) fit when stored.

The rest of the dimensions, chamfers etc. are exactly the same as the original file, so you shouldn't have any issues with fit.

As with the original, no supports are required for printing; as the finger pull uses a chamfer and so should be able to be printed without support.

I've added both .stl and .step files should you wish to customise further.