Feed; Spindle Quill Feed - Optimum OPTimill MH 35G Operating Manual

4.9

Feed

with the hand cranks on the milling table.
Note the different forces acting during synchronous milling and conventional milling on the spin-
dles of the milling table. The cutting forces during synchronous milling tend to be that the tool
will move into the material.
Conventional milling is to be preferred on the MH35G and synchronous milling is always to be
preferred on the MH35V.
Only with recirculating ball screws can the use of synchronous milling be undertaken sensibly.
This instruction manual assumes that the milling machine MH35G and MH35V has been
obtained without recirculating ball screws.
The forces and backlash occurring in the spindle nuts leads to "chatter marks" on the surface of
the work piece in synchronous milling.
In conventional milling, the work piece moves with the hand cranks on the milling table opposite
to the direction of rotation of the milling machine.
In synchronous milling, the work piece moves with the hand cranks on the milling table in the
direction of rotation of the milling machine. A smoother surface is obtained compared with con-
ventional milling. So, machining in synchronous milling should only be used for finishing.
4.10

Spindle quill feed

With the fine feed ( 12 ).

Turn the handle screw ( 11 ) to engage the coupling of the fine feed.
12
EN
MH35G│MH35V
36
11
Translation of original instruction Version 1.1.0 - 2020-08-07