(2020-04-15, 16:38)Philippe Hurbain Wrote: Actually it seems to be a "nut" that goes with this "screw": https://www.ldraw.org/parts/official-par...rtid=23421
See building instructions https://www.lego.com/biassets/bi/6163302.pdf
...but that doesn't give any details on the bottom of the part.
Maybe I could use an inverted subfile, s\23421s01.dat ?
But I think it might not be that complex, or long? Must be something shorter, with less friction?
Found the bottom in a video review.
bottom.png (Size: 129.4 KB / Downloads: 72)
Looks like the inside is smaller than a regular bottom stud.
But the spiral pole is 12 ldu diameter.