Setting up the machine
2.6 Measuring the workpiece zero
Milling
90 Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
2.6.9 Measuring a spigot
You have the option to measure and align rectangular spigots, and one or more circular
spigots.
Measuring a rectangular spigot
The rectangular spigot should be aligned at right-angles to the coordinate system. By
measuring four points at the spigot you can determine the length, width, and center point of
the spigot.
Please note that the straight lines between points P1 and P2 or P3 and P4 must intersect
with one another, in order that a measurement result is displayed.
Measuring 1 circular spigot
The workpiece is located anywhere on the work table and has a circular spigot. You can
determine the diameter and center point of the spigot with four measuring points.
Measuring 2 circular spigots
The workpiece is located anywhere on the work table and has 2 spigots. 4 points are
automatically measured at the two spigots and the spigot centers are calculated from them.
The angle α is calculated from the connecting line between both center points and the
reference axis, and the new zero point that corresponds to the center point of the first spigot
is determined.
Measuring 3 circular spigots
The workpiece is located anywhere on the work table and has three spigots. 4 points are
automatically measured at the three spigots and the spigot centers are calculated from them.
A circle is placed through the three center points and the circle center and circle diameter
are determined.
When an angular offset is selected, the base angle of rotation α can also be determined.
Measuring 4 circular spigots
The workpiece is located anywhere on the work table and has four spigots. 4 points are
automatically measured at the four spigots and the spigot centers are calculated from them.
Two spigot center points are each connected diagonally and the intersection point of the two
lines is then determined. When an angular offset is selected, the base angle of rotation α can
also be determined.
Note
"Measuring only" for automatic measuring
If "Measuring only" is selected as offset target, then instead of the "Set WO" softkey, the
"Calculate" softkey is displayed.
The measuring versions "Rectangular spigot" and "1 circular spigot" are an exception. For
these single-point measurements, for "Measuring only" neither the "Set WO" softkey nor the
"Calculate" softkey is listed.
Note
You can only measure 2, 3, and 4 circular spigots automatically.
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