The brown base of the yellow compound slide is turned an angle α (half of taper angle of cone surface to be created) and then fixed. This makes the tool moves along a line that creates an angle α with the axis of rotation of the orange work when turning the compound slide screw.
The green cross slide and the violet carriage are fixed during operation.
Inventor files of thid video:
[ Ссылка ]
![](https://s2.save4k.ru/pic/4LET_jHIZvM/mqdefault.jpg)