It was decided to start preparing for the manufacture of an unusual part for a lathe with the manufacture of a dividing device for the spindle. It will be necessary to divide the circle into 28 parts, so a homemade dividing disk was made for this device. But in the end, this disk can be mounted on a HV-6 turntable and vice versa, a disk from a turntable can help divide circles using a lathe spindle.

The disadvantage of such fasteners may not be universality, since the collet is designed for a specific through hole in the spindle, but there is no need to use a ramrod.

Links to alternative channels so as not to get lost:
https://zen.yandex.ru/technicalfood
https://t.me/TechnicalFood