Thickening Technique Requested - Intergraph Smart 3D - Help - Hexagon PPM

Intergraph Smart 3Dx Property Descriptions

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English
Product
Intergraph Smart 3D
Subproduct
3Dx
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Smart 3D Version
13.1

Specifies the technique requested to thicken the plate part.

This property affects only the behavior of plate parts derived from systems. The property defaults to Procedural at creation. Changing the value of this property can affect the geometry of the part as described below.

Standalone plate parts initially display nothing for this property. You can change the value, but those changes do not change the part or its geometry. Smart 3Dx thickens all standalone plate parts, including collars, using procedural thickening.

Undefined (blank)

Indicates that Smart 3Dx selects the appropriate technique. Smart 3Dx automatically changes this value to Procedural.

Procedural

Indicates the part is thickened using the standard thickening method provided by the ACIS modeler. This works for the vast majority of parts, and you should not change this value unless there is a specific reason to try a different technique.

If the thickening fails using ACIS, and the part is a hull part, the software automatically tries the NonProcedural thickening technique. This option only controls which method the software tries first. You can determine which method Smart 3Dx actually used from the Thickening Technique Used property.

Procedural with slit

Used for parts that have internal slits or discontinuities in the surface of the system that form part of the boundary of parts on the system. The currently-supported example of this is a surface with a combination of split and bent knuckles joined end to end. Because Smart 3Dx does not support splitting knuckles and changing the properties of different segments, these surfaces must be constructed with the correct geometry to reflect the bent and split portions. Parts that are bounded by the slit, and potentially parts on the system that are within half a meter of the slit, must have this value set to assure a proper trim. Setting this attribute on parts that do not need it should not cause a failure but may cause the part to take more time to detail. The following pictures show an example of this type of surface, first the full surface and then a close-up in the region of the slit or discontinuity.

The plate system in these pictures is split into three parts by the knuckle (shown as white) and the two black seams. You must be sure that a single part does not touch both sides of the slit.

NonProcedural

An infrequently used option. Historically, a much higher percentage of parts failed to thicken with the ACIS modeler, and many designers used a specific hull form definition tool that produced a surface with very specific characteristics. NonProcedural thickening provided a tool that would thicken almost any part on this type of surface, even if the ACIS modeler failed. The ACIS modeler has improved greatly, and the NonProcedural thickening method has not been enhanced to handle the surfaces produced by many of the hull form tools currently in use. Setting this option may solve a failure-to-thicken problem on a hull part.

If NonProcedural thickening fails for a hull shell part, Smart 3Dx automatically tries to thicken the part using Procedural thickening. This option only controls which method the software tries first. You can determine which method Smart 3Dx actually used from the Thickening Technique Used property.