Milling external thread on a lathe 104:33

Green motor block of red cutter is fixed to green cross slide. The latter can slide on violet longitudinal slide, which moves synchronically with blue chuck: L mm in one revolution of the chuck. L is thread lead of the grey work.
Cross motion of the green slide (thanks to pink screw) alters the radial distance from the red cutter to the work.
The cutter rotates very fast to create the thread surface.
Because the thread lead angle is small, no need to set the angle between cutter axis and the work axis.
The video shows a working cycle (up-milling method):
Cutter moves in – work rotates and cutter moves longitudinally to cut thread – work stops and cutter moves out – work rotates in reverse direction and cutter moves to its initial position.