Select the Edit | Preferences | Rotary Table Setup menu option to open the Rotary Table Setup dialog box.
Rotary Table Setup dialog box
PC-DMIS disables rotary table motion when ClearanceCube motion is active.
This dialog box allows you to define the rotary table. You can only accept one option per category.
Select the type of table being used. If you select Dual Rotary Table or Stacked Rotary Tables, indicate the active table (Table W or Table V). If you select Dual Rotary Tables or Stacked Rotary Tables, PC-DMIS also displays the Active Rotary Table toolbar once you click the OK button. This toolbar contains two icons that allow you to select which rotary table is active.
Select either Table is Index Type or Table is Infinite Type option to define if the table is an indexable or infinite type.
Index type rotary tables have a finite number of specific angles to which they can be positioned. Generally, they have a fixed increment (in degrees of rotation) from a given position to the next available position. The incremental amount varies based on your specific table. Please consult your rotary table documentation if necessary. Infinite type rotary tables accept any position (in degrees).
Select either the Table is Manual or Table is DCC option to define if the table is a manual or DCC table type.
From the Axis for Table list, select the machine axis closest to the axis of rotation for the table.
From the Direction of Positive list, select whether or not the table has a positive rotation about the chosen axis in either the CLOCKWISE direction or the COUNTERCLOCKWISE direction. The reference point of view for the direction is the perspective of looking down the axis for the table towards the origin.
If known, type the XYZ and IJK values. For PC-DMIS NC, the approximate location of the table center (within the probe's prehit distance) must be included because the entire calibration is done under DCC control.
Click Calibrate to begin the calibration process.
WARNING: When you do this, the machine moves. To avoid injury, stay clear of the machine. To avoid hardware damage, run the machine at a slower speed.
The Rotary Table Setup menu option is available only if your PC-DMIS license is configured to accept rotary tables.
ROTABSPEED Command
When you define a Move/Rotab command, the command uses the speed value set in the Rotary Table tab of the Parameter Settings dialog box (Edit | Preferences | Parameters). You can override this value to slow down or speed up the rotary table with the ROTABSPEED command.
For example:
STARTUP=ALIGNMENT/START,RECALIBRATE:USE_PART_SETUP,LIST=YES
ALIGNMENT/END
MODE/DCC
MOVESPEED/ 96
FLY/ON
FORMAT/TEXT,OPTIONS,,HEADINGS,SYMBOLS,;NOM,TOL,MEAS,DEV,OUTTOL,,
LOADPROBE/X5HD
TIP/X5HD, SHANKIJK=0,0,1, ANGLE=90
MOVE/ROTAB,30,SHORTEST,
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.
.
ROTABSPEED/ 72
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.
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MOVE/ROTAB,60,SHORTEST,
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ROTABSPEED/ 20
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MOVE/ROTAB,77,SHORTEST,
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In this example, the last five lines show the insertion of the ROTABSPEED command. The first instance speeds up the rotary table to 72 degrees per second, possibly to speed up the measurement process for a small part. The second ROTABSPEED command slows the rotary table down to 20 degrees per second, possibly for a larger part.
If you use the default value of 0 (zero) for the ROTABSPEED command, the rotary table's speed is proportional to the value set for the MOVESPEED command. This is necessary for backward compatibility prior to the implementation of the ROTABSPEED command.
For systems with stacked rotary tables, you need to account for both tables in the ROTABSPEED command, ROTABSPEED <wspeed>[,<vspeed>] where <wspeed> is table one and the optional <vspeed> is table two.
ROTABSPEED/ 50,40
An example of a system with a stacked rotary table is the Optive CMM for Vision systems.
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