Although the library uses the 3-D Multibody library, the Web Handling library is strictly for modeling planar systems in the XY plane. For this reason, the gravity setting should not be changed from the default downward Y axis.

All models must have at least one Web Properties record on the canvas or in the encompassing subsystem.

The library is based on a specific flow of the material (web) from left to right (positive X).

To maintain correct connections, use the Flip Direction option found on all rollers to create a web line that goes from right to left:

The use of the Flip Direction setting is optional as position and orientation of the icons on the canvas has no bearing on the model configuration. Using it, however, enables you to create web line that maintain the visual correlation between canvas layout and the actual web line. Note that to complete the process, you will also need to flip the icon horizontally.

The connections between the Web Handling library components have to follow additional rules:

Each connection consists of two separate sets of connectors:

Connections are color-coded to prevent mistakes.

A Span component must be placed between other web handling components

To simplify usage and the connection of 1-D rotational components (motion/torque drivers, electrical motors, etc.) to rollers, the following convention is used:

Positive rotation is defined by material moving downstream. This means that if the configuration changes, the internal rotation axis is changed to maintain the meaning of the positive rotation.

The effective roller radius, $r_{\mathrm{eff}}$, defines the relationship between the web transfer speed and the roller angular velocity under no-slip conditions, $v_{\mathrm{web}}\=R_{\mathrm{eff}}{\mathrm{\omega }}_{\mathrm{roller}}$; various cases are shown below.

	Roller and Detailed Roller

	Nip Roller

	S-Wrap Nip Roller

	Multi-Web Roller Out