Instructions

[Y] or [y] will shift the focus to the Y-axis. [A] or [a] will shift the focus to the A-axis.
To help you remember which axis will jog when you press the jog buttons, the active axis
name is displayed on them.
Jog Mode
The EMC can jog (move a particular axis) as long as you hold the button down when it is
set for “continuous,” or it can jog for a preset distance when it is set for “incremental.”
You can also jog the active axis by pressing plus [+] or minus [–] keys on the keyboard.
Again, case is not important for keyboard jogs.
The two small buttons between the large jog buttons let you set which kind of jog you
want. When you are in incremental mode, the distance buttons come alive. You can set a
distance by pressing it with the mouse. You can toggle between distances by pressing [i]
or [I] on the keyboard.
Incremental jog has an interesting and often unexpected effect. If you press the jog button
while a jog is in progress, it will add the distance to the position it was at when the
second jog command was issued. For example, two one-inch jog presses in close
succession will not get you two inches of movement. You have to wait until the first
movement is complete before jogging again.
Jog speed is displayed above the slider. It can be set using the slider, by clicking in the
slider’s groove on the side you want it to move toward, or by clicking on the [Default] or
[Rapid] buttons. This setting only affects the jog move while in manual mode. Once a jog
move is initiated, jog speed has no effect on the jog. As an example of this, say you set
jog mode to incremental and the increment to 1 inch. Once you press the [Jog] button it
will travel that inch at the rate it started.
Directions of Travel
A note near the end of Part 1 explains how direction of travel is called out in cnc
programming. Keep in mind that the + and – directions refer to APPARENT TOOL
MOVEMENT in relation to the operator, not direction of table travel.
Keyboard Jogging
When the control is in manual mode you can also control the slides using the keyboard
cursor control arrows. The slides will move in the direction the arrows point, and the Z-
axis can be raised or lowered using the [Page Up] or [Page Down] keys. The speed the
slides move at will be determined by the manual feed rate setting.
Yes, you can move the machine around in manual mode. You can even do some tolerable
milling in manual mode, so long as you work a single axis at a time and set jog speed for
the feed rate that your tool, machine, and material need, but the real heart of CNC
machine tool work is the auto mode.
Auto Mode
Sherline’s auto mode displays the typical functions that people come to expect from the
EMC. Along the top are a set of buttons which control what is happening in auto. Below
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