Last Change: 2025-05-14 #dba

sphe_compute

Usage

• Starts the computation of spherene.
• Set computation settings
• Add project data (Part name, version...)
• See license information

Adjust settings and start computation.

The sphe_compute command triggers the computation of spherene based on the defined parameters and control geometries in your project. This is where your part get processed using ADMS technology to generate the spherene geometry.

To initiate the computation of spherene, type sphe_compute in the Rhino command line or click

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Parameters:

Attribute	Value	Default	Unit
Density Reference Thickness (DRT)	0.1<	0.4	mm
Random Seed	1-99999999	1	Integer
Single Surface (si)	True/False	True	Boolean
Colorize si	None	Colorize	Vertex Color
	Mean Curvature		Vertex Color
	Overhangs		Vertex Color
	Density		Vertex Color
	Surface Bias		Vertex Color
	Thickness		Vertex Color
Solid Surface (so)	Draft / Production	Draft	Boolean
Colorize SO	Multiple Labyrinth Color Schemes	Colorize	Vertex Color
	Overhangs		Vertex Color
Part Name	Custom Text		Text
Part Version	Custom Text		Text
Comment	Custom Text		Text
Maximum Execution Time	1-45	10	Minutes

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Description

This command computes the spherene with the specified parameters.

• density_reference_thickness This reference thickness is use to compute the density when generating the spherene geometry. When no thickness field is provided, this will be the constant wall thickness. The default unit of DRT is millimeters, and it should be a float value greater than 0.1. Lower DRT values produce more complex geometries with higher genus (i.e., more holes or handles) but also significantly increase computational cost. Halving the DRT can increase computation time by up to 8× and memory usage by up to 6×. Normally this would take the nozzle size of your 3D printer or the thickness you wish for computing density of spherene geometry.
• Single Surface (si) generates a "paper thin" geometry with no wall thickness
• Solid Surface (SO) parameter generates a solid geometry. You can toggle between draft, and production quality.
• Colorize defines a vertex coloring method.
• Enter custom text to organize your work using Part Name, Part Version and Comment These custom texts will be reflected in the resulting layer names after computation.
• The max_time parameter sets a computation time constraint.

tip

To iterate faster, you can work generating single surfaces or working in draft mode (Default) for solid surfaces. When ready to compute the production geometry for 3D printing, switch to "production" to get a higher resolution and smoother result.

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Halfspaces and Labyrinths

Generates the actual geometries of the halfspaces or the two domains/labyrinths as result.

tip

Use labyrinths as input for your CFD simulations

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Printing Features

z-Thickness Factor

Scales the spherene overhangs slightly for thicker tops. This allows slicers for FFF methods to have more layers on the tops of spherenes.

Mesh Reduction

Decreases the polycount, this often results in faster slicing for additive manufacturing.

Generate Support Points

Automatically creates points where overhangs are detected.

This can be used for automatic support generation in slicing software.

info

Spherene soon is releasing a open sourced tool to automatically create 3MF files with painted supports for easy support generation in PrusaSlicer, Bambu Studio and Orca Slicer.

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Density Reference Thickness (DRT)

Density Reference Thickness (DRT) defines the reference wall thickness of the generated Spherene geometry. This reference thickness is use to compute the density when generating the spherene geometry. When no thickness field is provided, this will be the constant wall thickness.

Normally this would take the nozzle size of your 3D printer or the thickness you wish for computing density of spherene geometry: $\text{Density} = \frac{\text{Area of Spherene} \times \text{DRT}}{\text{Envelope Volume}} \times 100\%$

The default unit of DRT is millimeters, and it should be a float value greater than 0.1. Lower DRT values produce more complex geometries with higher genus (i.e., more holes or handles) but also significantly increase computational cost. Halving the DRT can increase computation time by up to 8× and memory usage by up to 6×.