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Configuring the Simulation siemens NX

You can configure the simulation of the synchronized tool paths. To do this, select the Simulation Options icon in the synchronization manager. The Simulation Options dialog opens.

You have the following options:

Option

Action

Display

Controls whether the graphics window is updated in a movie-like fashion. If Display is off, you will see the machine state at the beginning and the end of your simulation, but no moves in-between.

Collision

Activates collision checking.

Stop on Collision

Stops the simulation when the system detects a collision. This option is only enabled when Collision is active.

Select Pairs

Activates the Collision Configuration dialog where you can select pairs of devices for collision consideration.

In-process Workpiece

If active, the system creates and maintains an in-process workpiece (IPW). You can specify characteristics of the IPW in the options below.

If you activate the IPW for an operation that does not contain a blank, the system opens the Temporary Blank dialog where you can specify a blank that is only valid while the Simulation Control Panel is open. This blank does not appear in the graphics window; it is simply used as the basis for the construction of an IPW.

Animation Accuracy

Specifies the accuracy during the animation. You can choose from:

  • Fine – provides a high-quality representation of the IPW during animation.

  • Coarse – the accuracy of the dynamic IPW is reduced during animation. The system draws few facets and is faster. When the animation is finished, the system redraws the IPW using the finer resolution.

Color

Specifies the color for all subsequently created faceted bodies.

Translucency

Specifies the translucency of all subsequently created faceted bodies. In order for the translucency that you set here to be visible, you must activate the general translucency option under Preferences → Visualization → Visual.

Save as Component

Saves the in-process workpiece during simulation as a faceted or solid body in a separate part file with its own reference set. You can specify the location for this file in the manufacturing preferences. The system only saves the component if you have activated Show 3D Material Removal in the Simulation Control Panel.

Max. Length Increment

Affects density of points sampled for collision checking, or distance traveled between animation frames. As the length increment gets smaller, the simulation becomes more fine-grained. If you choose a large increment, the simulation moves more rapidly through the program, but leaves out detail.

Note

The system checks for collision at each increment. If you enter a large increment, the system will not perform as many collision checks as it does with a small increment.

The default value for this is 5 mm or 0.16 inches, depending on the units of your part.

Max. Angular Increment

This is similar to Maximum Length Increment, but used for movements around an arc. The default value is 0.5 degrees.

Display by Time

Bases the simulation display on time elapsed. This is useful in situations with multiple carriers. The Speed slider on the Simulation Control Panel controls how much time elapses between displayed animation frames based on the value set in the Max Time Increment field below.

Max. Time Increment

Amount of time (measured in seconds) that elapses between animation frames if you have chosen to display the animation by time.

Chordal Tolerance

The chordal tolerance refers to the distance between an arc and the chord between them. The smaller the chordal tolerance, the more steps will be taken in the simulation. The default value for this option is 0.1 mm or 0.01 inches, depending on the units of your part.

X = Chordal Tolerance

Note

The system calculates a minimum number of chords. Regardless of the chordal tolerance you enter, the system will not simulate using a smaller number of chords.

Write Messages to Listing Window

The system sends simulation information to an information window during the simulation and you can then process the information as needed (for example, save it, e-mail it, or print it).

Stop on Limit Violation

The simulation checks limits as it progresses. If it finds a violation, it highlights any geometry corresponding to the axis violating the limit in a color that you set in the customer defaults.

If the geometry associated with the limit violation is also participating in a clearance violation, the limit violation highlighting takes preference.

Cache NC Program

The simulation writes each line of the NC program to a file. Stepping backward and forward has no effect on this file. If you have selected Save NC Program in the Simulation Control Panel, the system saves this program to an output file, otherwise it deletes the file when you close the Simulation Control Panel or reset the dialog.

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