a. Do not forget that pressing TAB key causes that additional side panel appears where
you can set speed, continuous or step mode – it makes that controlling the axes and
precise setting of material base is easier.
b. By pressing the combination of feed rate key (e.g. right arrow) and SHIFT key, the
movement is in continuous mode with 100% speed - regardless of the current set-
tings.
c. By pressing the combination of the feed rate key and CTRL key – the movement is
always in step mode with speed set in FEEDRATE area.
9. Mach3 always starts with tool „0” chosen, if you use a tools changer and some tool left in a
handle when you turn off, then after Mach restart, you must enter this tool number (Tool
Information group on the main screen, the "Tool").
a. If you do not use a tool changer but you have an automatic tool-length measurement
sensor, then after starting Mach program always enter „1” <enter> into the “Tool”.
Similarly, when generating the g-code file in CAM program also always set the tool 1.
10. STOP button on Mach3 screen stops a machine instantly. With stepper motors it may cause
that motor will fall out from the position, with servo drives the motor controllers may report
an overload error or overstaying error and you will need to re-home the machine. Recom-
mended way to stop the work is pressing pause first („Feed Hold”), and after it stopped – the
STOP key.
11. To restart CNC program from specified location - set in G-code window desired position
(line), then press "Run From Here" and then "Cycle Start".
12. It is worth to know the basic commands of G-Code. In many situations the MDI Mach screen,
where you can manually type the commands that are executed immediately is a very useful
tool.
13. If you have a tool magazine and/or automatic
tool-length measurement sensor, remember
that any manipulation/repositioning or disassembly of HOME switches can cause machines
absolute zero position shift and then recalibration of magazine and tool length measurement
sensor position is necessary.
14. If you set the zero point (material base) and you use an automatic tool measurement –
always make the tool measurement first, and then set the zero point. Setting the zero point
with unmeasured tool causes that the level of processing shifts when we place another tool
and call the measurement.
15. A PC computer you use to control the machine should be treated like an integral part of the
control system and should not be used to any other tasks. It means that, this computer
should only have operation system, Mach3 program and nothing else (eventually text editor
CS- Lab s.c. – CSMIO/IP- A - CNC controller
Page 102
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