Measuring A Corner - Siemens SINUMERIK 828D Operating Manual

2.6.6

Measuring a corner

You can measure workpieces with a 90° angle or with any other angle.
Measuring a right-angled corner
The workpiece has a 90° corner and is located anywhere on the work table. By measuring
three points you can determine the corner point in the working plane (X/Y plane) and angle α
between the reference edge on the workpiece (line through P1 and P2) and the reference
axis (always the 1st axis in the working plane).
Measuring any corner
The workpiece has any (not right-angled) corner and is located anywhere on the work table.
By measuring 4 points you can determine the corner point in the working plane (X/Y plane),
angle α between the reference edge on the workpiece (line through P1 and P2) and the
reference axis (always the 1st axis in the working plane), and angle β of the corner.
Note
The coordinate system shown in the help displays is always in relation to the currently set
workpiece coordinate system.
Please be aware of this if you have swiveled or changed the WCS in any other form.
Prerequisite
You can insert any tool in the spindle for scratching when measuring the workpiece zero
manually.
- OR -
An electronic workpiece probe is inserted in the spindle and activated when measuring the
workpiece zero automatically.
Procedure
HMI sl Milling
Operating Manual, 06/2009, 6FC5398-7CP20-0BA0
1. Select the "Machine" operating area and press the <JOG> key.
2. Press the "Workpiece zero" softkey.
3. Press the "Right-angled corner" softkey if the workpiece has a right-
angled corner.
- OR -
Press the "Any corner" softkey, if you want to measure a corner not
equal to 90°.
Setting up the machine
2.6 Measuring the workpiece zero
71