Who sets the milling machine in the table are faced with the problem of lifting the milling machine and for this invent elevators of a variety of options.
My design is characterized by simplicity in manufacture and ease of use. Lowering and lifting of a router is made by the hexagon bar right across the top.

A similar Elevator showed Michael on the HeARTwood channel    • Фрезерный лифт. Установка фрезера в с...  

Mine may not be beautiful, for a very simple and reliable. The cost of materials is minimal.