GridBlockSupportGenerator¶

class pyslm.support.GridBlockSupportGenerator¶

Bases: pyslm.support.support.BlockSupportGenerator

The GridBlockSupportGenerator class provides common methods used for generating the ‘support’ structures typically used in Metal Additive Manufacturing for block polygon regions. A truss structure is generated that provides more efficient scanning of supports of exposure based processes, by minimising exposure jumps.

Attributes Summary

`gridSpacing`	The spacing of the grid truss structure within the block support
`mergeMesh`	Determines if the support truss geometry should be merged together into a connected unified mesh
`supportBorderDistance`	The offset used when generating a border or support skin for each truss slice in the support block.
`trussAngle`	The angle (degrees) used for generating the truss structures used in the support structure
`trussWidth`	The width of a strut in the truss grid
`useSupportBorder`	Generates a border around the each truss grid
`useSupportSkin`	Generates a truss support skin around the extruded boundary of the support

Methods Summary

identifySupportRegions(part, overhangAngle)

Extracts the overhang mesh and generates block regions given a part and target overhang angle.

Attributes Documentation

gridSpacing¶

The spacing of the grid truss structure within the block support

Return type:: List[float]

mergeMesh¶

Determines if the support truss geometry should be merged together into a connected unified mesh

Return type:: bool

supportBorderDistance¶

The offset used when generating a border or support skin for each truss slice in the support block.

Return type:: float

trussAngle¶

The angle (degrees) used for generating the truss structures used in the support structure

Return type:: float

trussWidth¶

The width of a strut in the truss grid

Return type:: float

useSupportBorder¶: Generates a border around the each truss grid

useSupportSkin¶

Generates a truss support skin around the extruded boundary of the support

Return type:: bool

Methods Documentation

identifySupportRegions(part, overhangAngle, findSelfIntersectingSupport=True)¶

Extracts the overhang mesh and generates block regions given a part and target overhang angle. The algorithm uses a combination of boolean operations and ray intersection/projection to discriminate support regions. If findSelfIntersectingSupport is to set True (default), the algorithm will process and separate overhang regions that by downward projection self-intersect with the part. This provides more refined behavior than simply projected support material downwards into larger support block regions and separates an overhang surface between intersecting and non-intersecting regions.

Parameters:

part (Part) – Part for generating support structures for
overhangAngle (float) – Overhang angle (degrees)
findSelfIntersectingSupport (Optional[bool]) – Generates supports that intersect with the part

Return type:

List[GridBlockSupport]

Returns:

A list of BlockSupports